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Climate and Average Weather Year Round at Darlington, Darlington County Jetport Airport South Carolina, United States

At Darlington, Darlington County Jetport Airport, the summers are long, hot, and muggy; the winters are short and cold; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 35°F to 91°F and is rarely below 22°F or above 97°F.

Based on the tourism score, the best times of year to visit Darlington, Darlington County Jetport Airport for warm-weather activities are from mid April to early June and from late August to mid October.

Climate at Darlington, Darlington County Jetport Airport

coldcoolwarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow65%65%49%49%clearovercastprecipitation: 4.1 inprecipitation: 4.1 in2.5 in2.5 inmuggy: 90%muggy: 90%0%0%drydrytourism score: 6.1tourism score: 6.11.41.4
Darlington, Darlington County Jetport Airport weather by month. Click on each chart for more information.

The hot season lasts for 3.9 months, from May 19 to September 15, with an average daily high temperature above 84°F. The hottest month of the year at Darlington, Darlington County Jetport Airport is July, with an average high of 90°F and low of 72°F.

The cool season lasts for 3.0 months, from November 30 to February 27, with an average daily high temperature below 62°F. The coldest month of the year at Darlington, Darlington County Jetport Airport is January, with an average low of 36°F and high of 55°F.

Average High and Low Temperature at Darlington, Darlington County Jetport Airport

Average High and Low Temperature at Darlington, Darlington County Jetport AirporthotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1755°FJan 1755°FJul 1891°FJul 1891°F35°F35°F72°F72°FMay 1984°FMay 1984°FSep 1584°FSep 1584°FNov 3062°FNov 3062°FFeb 2762°FFeb 2762°F61°F61°F64°F64°F41°F41°F40°F40°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 55°F59°F67°F75°F83°F89°F90°F89°F83°F75°F66°F58°F
Temp. 44°F47°F54°F63°F71°F78°F80°F78°F73°F63°F54°F46°F
Low 36°F38°F45°F52°F61°F69°F72°F70°F64°F53°F44°F38°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature at Darlington, Darlington County Jetport Airport

Average Hourly Temperature at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldvery coldvery coldcoldcoldcoolcoolcomfortablewarmwarmhotvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Pūnch, India (7,439 miles away) and Baiyun, China (8,089 miles) are the far-away foreign places with temperatures most similar to Darlington, Darlington County Jetport Airport (view comparison).

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At Darlington, Darlington County Jetport Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year at Darlington, Darlington County Jetport Airport begins around August 21 and lasts for 3.1 months, ending around November 26.

The clearest month of the year at Darlington, Darlington County Jetport Airport is October, during which on average the sky is clear, mostly clear, or partly cloudy 64% of the time.

The cloudier part of the year begins around November 26 and lasts for 8.9 months, ending around August 21.

The cloudiest month of the year at Darlington, Darlington County Jetport Airport is January, during which on average the sky is overcast or mostly cloudy 50% of the time.

Cloud Cover Categories at Darlington, Darlington County Jetport Airport

Cloud Cover Categories at Darlington, Darlington County Jetport AirportclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2665%Oct 2665%Feb 949%Feb 949%Aug 2157%Aug 2157%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 50%50%45%42%43%45%48%43%39%36%40%48%
Clearer 50%50%55%58%57%55%52%57%61%64%60%52%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Darlington, Darlington County Jetport Airport varies significantly throughout the year.

The wetter season lasts 3.2 months, from May 26 to September 2, with a greater than 34% chance of a given day being a wet day. The month with the most wet days at Darlington, Darlington County Jetport Airport is July, with an average of 14.6 days with at least 0.04 inches of precipitation.

The drier season lasts 8.7 months, from September 2 to May 26. The month with the fewest wet days at Darlington, Darlington County Jetport Airport is November, with an average of 6.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Darlington, Darlington County Jetport Airport is July, with an average of 14.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 49% on July 25.

Daily Chance of Precipitation at Darlington, Darlington County Jetport Airport

Daily Chance of Precipitation at Darlington, Darlington County Jetport AirportwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 2549%Jul 2549%Oct 3019%Oct 3019%May 2634%May 2634%Sep 234%Sep 234%NowNowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 7.4d7.2d8.3d8.1d9.6d12.0d14.6d13.1d9.2d6.8d6.2d7.1d
Mixed 0.6d0.5d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.4d
Snow 0.3d0.2d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Any 8.3d7.9d8.5d8.1d9.6d12.0d14.6d13.1d9.2d6.8d6.3d7.6d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Darlington, Darlington County Jetport Airport experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year at Darlington, Darlington County Jetport Airport. The month with the most rain at Darlington, Darlington County Jetport Airport is August, with an average rainfall of 4.1 inches.

The month with the least rain at Darlington, Darlington County Jetport Airport is November, with an average rainfall of 2.7 inches.

Average Monthly Rainfall at Darlington, Darlington County Jetport Airport

Average Monthly Rainfall at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 inAug 104.1 inAug 104.1 inNov 72.5 inNov 72.5 inMar 13.3 inMar 13.3 inJan 13.0 inJan 13.0 inApr 282.7 inApr 282.7 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 3.0″3.2″3.2″2.8″2.8″3.6″3.9″4.1″3.7″3.0″2.7″2.9″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Darlington, Darlington County Jetport Airport experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 2.0 months, from December 22 to February 23, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Darlington, Darlington County Jetport Airport is January, with an average snowfall of 1.6 inches.

The snowless period of the year lasts for 10.0 months, from February 23 to December 22. The least snow falls around July 29, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall at Darlington, Darlington County Jetport Airport

Average Monthly Snowfall at Darlington, Darlington County Jetport AirportsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inJan 211.6 inJan 211.6 inJul 290.0 inJul 290.0 inDec 221.0 inDec 221.0 inFeb 231.0 inFeb 231.0 inNowNow
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 1.6″1.3″0.3″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.8″

The length of the day at Darlington, Darlington County Jetport Airport varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 51 minutes of daylight; the longest day is June 20, with 14 hours, 28 minutes of daylight.

Hours of Daylight and Twilight at Darlington, Darlington County Jetport Airport

Hours of Daylight and Twilight at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 28 minJun 2014 hr, 28 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 51 minDec 219 hr, 51 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.1h11.0h12.0h13.1h14.0h14.4h14.2h13.4h12.4h11.3h10.4h9.9h

The earliest sunrise is at 6:06 AM on June 11, and the latest sunrise is 1 hour, 35 minutes later at 7:41 AM on November 2. The earliest sunset is at 5:09 PM on December 4, and the latest sunset is 3 hours, 27 minutes later at 8:36 PM on June 28.

Daylight saving time (DST) is observed at Darlington, Darlington County Jetport Airport during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time at Darlington, Darlington County Jetport Airport

Sunrise & Sunset with Twilight and Daylight Saving Time at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 116:06 AMJun 116:06 AM8:36 PMJun 288:36 PMJun 28Dec 45:09 PMDec 45:09 PM7:41 AMNov 27:41 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth at Darlington, Darlington County Jetport Airport

Solar Elevation and Azimuth at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM00010101010202020303030404040505060607000010101020202020303030404040505060703279NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases at Darlington, Darlington County Jetport Airport

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Darlington, Darlington County Jetport Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.6 months, from May 18 to October 6, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The month with the most muggy days at Darlington, Darlington County Jetport Airport is July, with 27.2 days that are muggy or worse.

The month with the fewest muggy days at Darlington, Darlington County Jetport Airport is February, with 0.0 days that are muggy or worse.

Humidity Comfort Levels at Darlington, Darlington County Jetport Airport

Humidity Comfort Levels at Darlington, Darlington County Jetport AirportmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 50%Feb 50%90%Aug 490%Aug 4May 1823%May 1823%Oct 623%Oct 623%NowNowoppressiveoppressivedrydrymuggymuggymiserablemiserablehumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.1d0.0d0.2d1.0d6.9d19.6d27.2d26.0d15.4d4.4d1.0d0.3d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Darlington, Darlington County Jetport Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.2 months, from November 12 to May 18, with average wind speeds of more than 7.5 miles per hour. The windiest month of the year at Darlington, Darlington County Jetport Airport is March, with an average hourly wind speed of 8.8 miles per hour.

The calmer time of year lasts for 5.8 months, from May 18 to November 12. The calmest month of the year at Darlington, Darlington County Jetport Airport is August, with an average hourly wind speed of 6.2 miles per hour.

Average Wind Speed at Darlington, Darlington County Jetport Airport

Average Wind Speed at Darlington, Darlington County Jetport AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphMar 78.9 mphMar 78.9 mphAug 76.1 mphAug 76.1 mphNov 127.5 mphNov 127.5 mphMay 187.5 mphMay 187.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 8.18.58.88.77.66.86.46.26.97.37.57.7

The predominant average hourly wind direction at Darlington, Darlington County Jetport Airport varies throughout the year.

The wind is most often from the west for 2.3 weeks, from January 7 to January 23 and for 3.6 weeks, from March 2 to March 27, with a peak percentage of 33% on January 14. The wind is most often from the north for 1.3 months, from January 23 to March 2 and for 3.4 months, from September 26 to January 7, with a peak percentage of 32% on February 3. The wind is most often from the south for 4.8 months, from March 27 to August 21, with a peak percentage of 39% on July 13.

Wind Direction at Darlington, Darlington County Jetport Airport

Wind Direction at Darlington, Darlington County Jetport AirportWNWSENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Darlington, Darlington County Jetport Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 15 to September 25, with an average temperature above 79°F. The month of the year at Darlington, Darlington County Jetport Airport with the warmest water is August, with an average temperature of 82°F.

The time of year with cooler water lasts for 5.0 months, from November 26 to April 25, with an average temperature below 68°F. The month of the year at Darlington, Darlington County Jetport Airport with the coolest water is February, with an average temperature of 64°F.

Average Water Temperature at Darlington, Darlington County Jetport Airport

Average Water Temperature at Darlington, Darlington County Jetport AirportwarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°FAug 882°FAug 882°F64°FFeb 1364°FFeb 13Jun 1579°FJun 1579°FSep 2579°FSep 2579°FNov 2668°FNov 2668°FApr 2568°FApr 2568°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 65°F64°F64°F66°F72°F79°F82°F82°F80°F74°F69°F67°F

To characterize how pleasant the weather is at Darlington, Darlington County Jetport Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Darlington, Darlington County Jetport Airport for general outdoor tourist activities are from mid April to early June and from late August to mid October, with a peak score in the second week of May.

Tourism Score at Darlington, Darlington County Jetport Airport

Tourism Score at Darlington, Darlington County Jetport Airportbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.16.11.41.46.16.14.64.6NowNow cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Darlington, Darlington County Jetport Airport for hot-weather activities is from late May to mid September, with a peak score in the last week of August.

Beach/Pool Score at Darlington, Darlington County Jetport Airport

Beach/Pool Score at Darlington, Darlington County Jetport Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.75.70.20.25.75.7NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Darlington, Darlington County Jetport Airport typically lasts for 7.7 months (234 days), from around March 21 to around November 10, rarely starting before March 1 or after April 11, and rarely ending before October 24 or after November 27.

Time Spent in Various Temperature Bands and the Growing Season at Darlington, Darlington County Jetport Airport

Time Spent in Various Temperature Bands and the Growing Season at Darlington, Darlington County Jetport Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 2150%Mar 2150%Nov 1050%Nov 1090%Apr 1190%Apr 1190%Oct 2490%Oct 2410%Mar 110%Mar 110%Nov 2710%Nov 270%Dec 240%Dec 24Jul 17100%Jul 17100%NowNowfreezingvery coldcoldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Darlington, Darlington County Jetport Airport should appear around February 5, only rarely appearing before January 20 or after February 24.

Growing Degree Days at Darlington, Darlington County Jetport Airport

Growing Degree Days at Darlington, Darlington County Jetport AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FFeb 588°FFeb 588°FMay 4900°FMay 4900°FJun 131,800°FJun 131,800°FDec 315,422°FDec 315,422°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.3 months, from April 8 to August 18, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year at Darlington, Darlington County Jetport Airport is May, with an average of 6.6 kWh.

The darker period of the year lasts for 2.9 months, from November 11 to February 6, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year at Darlington, Darlington County Jetport Airport is December, with an average of 2.6 kWh.

Average Daily Incident Shortwave Solar Energy at Darlington, Darlington County Jetport Airport

Average Daily Incident Shortwave Solar Energy at Darlington, Darlington County Jetport AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 56.7 kWhJun 56.7 kWhDec 242.6 kWhDec 242.6 kWhApr 85.9 kWhApr 85.9 kWhAug 185.9 kWhAug 185.9 kWhFeb 63.4 kWhFeb 63.4 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.93.74.96.16.66.66.25.95.24.33.22.6

For the purposes of this report, the geographical coordinates of Darlington, Darlington County Jetport Airport are 34.449 deg latitude, -79.890 deg longitude, and 187 ft elevation.

The topography within 2 miles of Darlington, Darlington County Jetport Airport contains only modest variations in elevation, with a maximum elevation change of 98 feet and an average elevation above sea level of 181 feet. Within 10 miles also contains only modest variations in elevation (377 feet). Within 50 miles contains only modest variations in elevation (738 feet).

The area within 2 miles of Darlington, Darlington County Jetport Airport is covered by cropland (78%) and trees (21%), within 10 miles by trees (47%) and cropland (40%), and within 50 miles by trees (47%) and cropland (40%).

This report illustrates the typical weather at Darlington, Darlington County Jetport Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Darlington, Darlington County Jetport Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Marlboro County Jetport - HE Avent Field, Hartsville Regional Airport, Cheraw Municipal Airport/Lynch Bellinger Field, Florence Regional Airport, Richmond County Airport, Anson County Airport, Laurinburg-Maxton Airport, and Marion County Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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