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Climate and Average Weather Year Round at Macon County Airport North Carolina, United States

At Macon County Airport, the summers are warm and humid, the winters are very cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 27°F to 85°F and is rarely below 12°F or above 91°F.

Based on the tourism score, the best time of year to visit Macon County Airport for warm-weather activities is from mid June to mid September.

Climate at Macon County Airport

coldcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow65%65%45%45%clearovercastprecipitation: 4.7 inprecipitation: 4.7 inmuggy: 50%muggy: 50%0%0%drydrytourism score: 6.5tourism score: 6.50.60.6
Macon County Airport weather by month. Click on each chart for more information.

The warm season lasts for 3.7 months, from May 25 to September 17, with an average daily high temperature above 78°F. The hottest month of the year at Macon County Airport is July, with an average high of 84°F and low of 62°F.

The cold season lasts for 3.0 months, from November 28 to February 28, with an average daily high temperature below 56°F. The coldest month of the year at Macon County Airport is January, with an average low of 27°F and high of 50°F.

Average High and Low Temperature at Macon County Airport

Average High and Low Temperature at Macon County AirportwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2450°FJan 2450°FJul 2085°FJul 2085°F27°F27°F63°F63°FMay 2578°FMay 2578°FSep 1778°FSep 1778°FNov 2856°FNov 2856°FFeb 2856°FFeb 2856°F54°F54°F55°F55°F32°F32°F32°F32°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 50°F53°F61°F69°F76°F82°F84°F83°F78°F69°F60°F52°F
Temp. 36°F40°F47°F55°F62°F69°F72°F71°F65°F54°F45°F39°F
Low 27°F30°F36°F42°F51°F59°F62°F61°F55°F44°F35°F30°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 Macon County Airport

Average Hourly Temperature at Macon County 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 AMNowNowfreezingvery coldvery coldvery coldvery coldcoldcoldcoolcomfortablewarmcomfortable
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.

Torà de Riubregós, Spain (4,422 miles away) and Eksochí, Greece (5,372 miles) are the far-away foreign places with temperatures most similar to Macon County Airport (view comparison).

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At Macon County Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Macon County Airport begins around July 23 and lasts for 3.8 months, ending around November 17.

The clearest month of the year at Macon County Airport is September, 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 17 and lasts for 8.2 months, ending around July 23.

The cloudiest month of the year at Macon County Airport is January, during which on average the sky is overcast or mostly cloudy 53% of the time.

Cloud Cover Categories at Macon County Airport

Cloud Cover Categories at Macon County AirportclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Sep 2065%Sep 2065%Jan 345%Jan 345%Jul 2355%Jul 2355%Nov 1755%Nov 1755%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 53%52%50%46%48%46%45%38%36%37%44%53%
Clearer 47%48%50%54%52%54%55%62%64%63%56%47%

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

The wetter season lasts 3.5 months, from May 8 to August 26, with a greater than 36% chance of a given day being a wet day. The month with the most wet days at Macon County Airport is July, with an average of 14.7 days with at least 0.04 inches of precipitation.

The drier season lasts 8.5 months, from August 26 to May 8. The month with the fewest wet days at Macon County Airport is October, with an average of 7.4 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 Macon County Airport is July, with an average of 14.7 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 10.

Daily Chance of Precipitation at Macon County Airport

Daily Chance of Precipitation at Macon County AirportwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 1049%Jul 1049%Oct 1522%Oct 1522%May 836%May 836%Aug 2636%Aug 2636%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 7.3d7.2d9.6d9.7d11.8d13.5d14.7d12.2d8.6d7.4d8.0d8.1d
Mixed 1.7d1.4d0.6d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.4d1.1d
Snow 0.4d0.3d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d
Any 9.3d8.9d10.3d9.9d11.8d13.5d14.7d12.2d8.6d7.4d8.4d9.3d

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. Macon County Airport experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year at Macon County Airport. The month with the most rain at Macon County Airport is March, with an average rainfall of 4.4 inches.

The month with the least rain at Macon County Airport is October, with an average rainfall of 3.2 inches.

Average Monthly Rainfall at Macon County Airport

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 4.2″4.2″4.4″4.1″3.7″3.8″3.6″3.3″3.6″3.2″4.1″4.4″

Snowfall

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

The snowy period of the year lasts for 3.6 months, from December 1 to March 19, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Macon County Airport is January, with an average snowfall of 3.7 inches.

The snowless period of the year lasts for 8.4 months, from March 19 to December 1. The least snow falls around July 30, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall at Macon County Airport

Average Monthly Snowfall at Macon County AirportsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inJan 223.8 inJan 223.8 inJul 300.0 inJul 300.0 inDec 11.0 inDec 11.0 inMar 191.0 inMar 191.0 in
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 3.7″3.1″1.1″0.3″0.0″0.0″0.0″0.0″0.0″0.0″0.4″2.0″

The length of the day at Macon County Airport varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 47 minutes of daylight; the longest day is June 20, with 14 hours, 32 minutes of daylight.

Hours of Daylight and Twilight at Macon County Airport

Hours of Daylight and Twilight at Macon County AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 32 minJun 2014 hr, 32 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 47 minDec 219 hr, 47 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 10.1h10.9h12.0h13.1h14.0h14.5h14.2h13.4h12.4h11.3h10.3h9.8h

The earliest sunrise is at 6:18 AM on June 12, and the latest sunrise is 1 hour, 38 minutes later at 7:56 AM on November 2. The earliest sunset is at 5:21 PM on December 5, and the latest sunset is 3 hours, 31 minutes later at 8:52 PM on June 28.

Daylight saving time (DST) is observed at Macon County 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 Macon County Airport

Sunrise & Sunset with Twilight and Daylight Saving Time at Macon County AirportJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 126:18 AMJun 126:18 AM8:52 PMJun 288:52 PMJun 28Dec 55:21 PMDec 55:21 PM7:56 AMNov 27:56 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
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 Macon County Airport

Solar Elevation and Azimuth at Macon County 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 AM00010101010202020303030404040505060607000010101020202020303030404040505060703178NowNow
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 Macon County 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.

Macon County Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.5 months, from June 4 to September 18, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The month with the most muggy days at Macon County Airport is July, with 13.9 days that are muggy or worse.

The least muggy day of the year is February 19, when muggy conditions are essentially unheard of.

Humidity Comfort Levels at Macon County Airport

Humidity Comfort Levels at Macon County AirportmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 190%Feb 190%Jul 2750%Jul 2750%Jun 413%Jun 413%Sep 1813%Sep 1813%NowNowmuggymuggyhumidhumiddrydrycomfortablecomfortableoppressiveoppressive
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 0.0d0.0d0.0d0.0d1.1d6.2d13.9d12.9d4.8d0.5d0.0d0.0d

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 Macon County Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.4 months, from October 29 to May 11, with average wind speeds of more than 4.2 miles per hour. The windiest month of the year at Macon County Airport is February, with an average hourly wind speed of 5.4 miles per hour.

The calmer time of year lasts for 5.6 months, from May 11 to October 29. The calmest month of the year at Macon County Airport is August, with an average hourly wind speed of 3.0 miles per hour.

Average Wind Speed at Macon County Airport

Average Wind Speed at Macon County AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mphFeb 265.5 mphFeb 265.5 mphJul 312.9 mphJul 312.9 mphOct 294.2 mphOct 294.2 mphMay 114.2 mphMay 114.2 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) 5.25.45.45.04.13.33.13.03.44.04.64.9

The predominant average hourly wind direction at Macon County Airport varies throughout the year.

The wind is most often from the south for 1.9 weeks, from March 28 to April 10 and for 1.1 months, from November 9 to December 13, with a peak percentage of 34% on April 8. The wind is most often from the west for 4.2 months, from April 10 to August 15 and for 3.5 months, from December 13 to March 28, with a peak percentage of 41% on July 13. The wind is most often from the east for 1.6 months, from August 15 to October 4, with a peak percentage of 33% on September 6.

Wind Direction at Macon County Airport

Wind Direction at Macon County AirportWSWENSWJanFebMarAprMayJunJulAugSepOctNovDec0%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).

To characterize how pleasant the weather is at Macon County 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 time of year to visit Macon County Airport for general outdoor tourist activities is from mid June to mid September, with a peak score in the last week of August.

Tourism Score at Macon County Airport

Tourism Score at Macon County Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.60.6NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitationtourism 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 Macon County Airport for hot-weather activities is from late June to late August, with a peak score in the last week of July.

Beach/Pool Score at Macon County Airport

Beach/Pool Score at Macon County Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810104.64.60.00.0NowNow cloudscloudsprecipitationprecipitationbeach/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 Macon County Airport typically lasts for 5.8 months (177 days), from around April 22 to around October 16, rarely starting before April 4 or after May 10, and rarely ending before September 28 or after November 2.

Time Spent in Various Temperature Bands and the Growing Season at Macon County Airport

Time Spent in Various Temperature Bands and the Growing Season at Macon County Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Apr 2250%Apr 2250%Oct 1650%Oct 1650%May 1090%May 1090%Sep 2890%Sep 2890%Apr 410%Apr 410%Nov 210%Nov 210%Jul 19100%Jul 19100%NowNowfreezingvery coldcoldcoolcomfortablewarmhotfrigid
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 Macon County Airport should appear around March 5, only rarely appearing before February 15 or after March 22.

Growing Degree Days at Macon County Airport

Growing Degree Days at Macon County AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°FMar 589°FMar 589°FJun 5900°FJun 5900°FJul 201,800°FJul 201,800°FDec 313,501°FDec 313,501°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 4.5 months, from April 14 to August 29, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year at Macon County Airport is June, with an average of 6.7 kWh.

The darker period of the year lasts for 2.9 months, from November 11 to February 7, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year at Macon County Airport is December, with an average of 2.5 kWh.

Average Daily Incident Shortwave Solar Energy at Macon County Airport

Average Daily Incident Shortwave Solar Energy at Macon County AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 226.8 kWhJun 226.8 kWhDec 242.4 kWhDec 242.4 kWhApr 145.9 kWhApr 145.9 kWhAug 295.9 kWhAug 295.9 kWhFeb 73.3 kWhFeb 73.3 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) 2.73.64.75.96.56.76.66.25.44.33.12.5

For the purposes of this report, the geographical coordinates of Macon County Airport are 35.221 deg latitude, -83.420 deg longitude, and 2,008 ft elevation.

The topography within 2 miles of Macon County Airport contains very significant variations in elevation, with a maximum elevation change of 1,020 feet and an average elevation above sea level of 2,190 feet. Within 10 miles contains very significant variations in elevation (3,678 feet). Within 50 miles also contains extreme variations in elevation (6,024 feet).

The area within 2 miles of Macon County Airport is covered by trees (81%) and cropland (19%), within 10 miles by trees (96%), and within 50 miles by trees (90%).

This report illustrates the typical weather at Macon County 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

Macon County 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 Western Carolina Regional Airport, Clemson-Oconee County Airport, McGhee Tyson Airport, Pickens County Airport, Asheville Regional Airport, Anderson County Airport, Lee Gilmer Memorial Airport, and Greenville Downtown 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.

Please review our full terms contained on our Terms of Service page.