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Climate and Average Weather Year Round in Tutwiler Mississippi, United States

In Tutwiler, the summers are long, hot, and oppressive; the winters are short, cold, and wet; and it is 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 Tutwiler for warm-weather activities are from late April to early June and from late August to mid October.

Climate in Tutwiler

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow70%70%49%49%clearovercastprecipitation: 5.2 inprecipitation: 5.2 in2.2 in2.2 inmuggy: 96%muggy: 96%1%1%drydrytourism score: 6.2tourism score: 6.21.11.1
Tutwiler weather by month. Click on each chart for more information.

The hot season lasts for 4.2 months, from May 19 to September 25, with an average daily high temperature above 83°F. The hottest month of the year in Tutwiler is July, with an average high of 90°F and low of 73°F.

The cool season lasts for 2.9 months, from November 29 to February 25, with an average daily high temperature below 59°F. The coldest month of the year in Tutwiler is January, with an average low of 36°F and high of 52°F.

Average High and Low Temperature in Tutwiler

Average High and Low Temperature in TutwilerhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1652°FJan 1652°FJul 2191°FJul 2191°F35°F35°F73°F73°FMay 1983°FMay 1983°FSep 2583°FSep 2583°FNov 2959°FNov 2959°FFeb 2559°FFeb 2559°F64°F64°F62°F62°F42°F42°F41°F41°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 52°F56°F65°F74°F82°F88°F90°F90°F85°F75°F64°F55°F
Temp. 42°F46°F55°F64°F72°F79°F81°F81°F75°F64°F54°F45°F
Low 36°F39°F47°F55°F64°F70°F73°F71°F65°F54°F45°F39°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 in Tutwiler

Average Hourly Temperature in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec12 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.

Tepehan, Turkey (6,501 miles away) is the far-away foreign place with temperatures most similar to Tutwiler (view comparison).

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In Tutwiler, 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 in Tutwiler begins around June 6 and lasts for 5.2 months, ending around November 14.

The clearest month of the year in Tutwiler is September, during which on average the sky is clear, mostly clear, or partly cloudy 67% of the time.

The cloudier part of the year begins around November 14 and lasts for 6.8 months, ending around June 6.

The cloudiest month of the year in Tutwiler is February, during which on average the sky is overcast or mostly cloudy 50% of the time.

Cloud Cover Categories in Tutwiler

Cloud Cover Categories in TutwilerclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 470%Oct 470%Jan 449%Jan 449%Jun 659%Jun 659%Nov 1460%Nov 1460%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 49%50%47%42%43%39%38%33%33%33%41%48%
Clearer 51%50%53%58%57%61%62%67%67%67%59%52%

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

The wetter season lasts 8.5 months, from November 24 to August 8, with a greater than 29% chance of a given day being a wet day. The month with the most wet days in Tutwiler is May, with an average of 11.2 days with at least 0.04 inches of precipitation.

The drier season lasts 3.5 months, from August 8 to November 24. The month with the fewest wet days in Tutwiler is September, with an average of 6.9 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 in Tutwiler is May, with an average of 11.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 37% on May 21.

Daily Chance of Precipitation in Tutwiler

Daily Chance of Precipitation in TutwilerwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 2137%May 2137%Sep 2021%Sep 2021%Nov 2429%Nov 2429%Aug 829%Aug 829%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 7.8d8.0d10.0d10.2d11.2d10.4d10.2d8.5d6.9d7.5d8.2d8.6d
Mixed 0.5d0.4d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.2d
Snow 0.4d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.2d
Any 8.6d8.6d10.1d10.2d11.2d10.4d10.2d8.5d6.9d7.5d8.2d9.0d

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. Tutwiler experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Tutwiler. The month with the most rain in Tutwiler is April, with an average rainfall of 4.9 inches.

The month with the least rain in Tutwiler is August, with an average rainfall of 2.2 inches.

Average Monthly Rainfall in Tutwiler

Average Monthly Rainfall in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inDec 35.2 inDec 35.2 inAug 222.2 inAug 222.2 inApr 225.0 inApr 225.0 inJan 164.0 inJan 164.0 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 4.0″4.3″4.6″4.9″4.4″3.4″2.9″2.2″2.7″3.7″4.5″4.9″

Snowfall

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

The snowy period of the year lasts for 1.9 months, from December 24 to February 21, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Tutwiler is January, with an average snowfall of 1.2 inches.

The snowless period of the year lasts for 10 months, from February 21 to December 24. The least snow falls around July 6, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Tutwiler

Average Monthly Snowfall in TutwilersnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inFeb 21.4 inFeb 21.4 inJul 60.0 inJul 60.0 inDec 241.0 inDec 241.0 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 1.2″1.2″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.8″

The length of the day in Tutwiler varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 53 minutes of daylight; the longest day is June 20, with 14 hours, 25 minutes of daylight.

Hours of Daylight and Twilight in Tutwiler

Hours of Daylight and Twilight in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 25 minJun 2014 hr, 25 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 53 minDec 219 hr, 53 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 10.2h11.0h12.0h13.1h14.0h14.4h14.1h13.4h12.3h11.3h10.4h9.9h

The earliest sunrise is at 5:49 AM on June 12, and the latest sunrise is 1 hour, 33 minutes later at 7:22 AM on November 2. The earliest sunset is at 4:52 PM on December 4, and the latest sunset is 3 hours, 25 minutes later at 8:17 PM on June 28.

Daylight saving time (DST) is observed in Tutwiler 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 in Tutwiler

Sunrise & Sunset with Twilight and Daylight Saving Time in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 125:49 AMJun 125:49 AM8:17 PMJun 288:17 PMJun 28Dec 44:52 PMDec 44:52 PM7:22 AMNov 27:22 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 in Tutwiler

Solar Elevation and Azimuth in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00010101010202020303030404040505060607000010101020202020303030404040505060703379NowNow
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 in Tutwiler

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.

Tutwiler experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.3 months, from April 28 to October 6, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Tutwiler is July, with 29.3 days that are muggy or worse.

The month with the fewest muggy days in Tutwiler is January, with 0.3 days that are muggy or worse.

Humidity Comfort Levels in Tutwiler

Humidity Comfort Levels in TutwilermuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 231%Jan 231%96%Jul 2196%Jul 21Apr 2825%Apr 2825%Oct 625%Oct 625%NowNowmiserablemiserableoppressiveoppressivedrydrymuggymuggyhumidhumid
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 0.3d0.3d1.2d4.5d14.8d24.5d29.3d27.9d16.7d5.7d1.8d0.7d

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 in Tutwiler experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 7.3 months, from October 14 to May 23, with average wind speeds of more than 7.4 miles per hour. The windiest month of the year in Tutwiler is March, with an average hourly wind speed of 9.4 miles per hour.

The calmer time of year lasts for 4.7 months, from May 23 to October 14. The calmest month of the year in Tutwiler is July, with an average hourly wind speed of 5.5 miles per hour.

Average Wind Speed in Tutwiler

Average Wind Speed in TutwilerwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphMar 69.5 mphMar 69.5 mphJul 285.3 mphJul 285.3 mphOct 147.4 mphOct 147.4 mphMay 237.4 mphMay 237.4 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) 8.99.29.49.17.86.35.55.66.77.58.38.8

The predominant average hourly wind direction in Tutwiler varies throughout the year.

The wind is most often from the south for 6.3 months, from February 25 to September 3 and for 2.2 months, from October 11 to December 17, with a peak percentage of 49% on May 18. The wind is most often from the east for 1.6 weeks, from September 3 to September 14, with a peak percentage of 32% on September 6. The wind is most often from the north for 3.9 weeks, from September 14 to October 11 and for 2.3 months, from December 17 to February 25, with a peak percentage of 34% on September 28.

Wind Direction in Tutwiler

Wind Direction in TutwilerNSENSNJanFebMarAprMayJunJulAugSepOctNovDec0%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 in Tutwiler 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 Tutwiler for general outdoor tourist activities are from late April to early June and from late August to mid October, with a peak score in the third week of September.

Tourism Score in Tutwiler

Tourism Score in Tutwilerbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.21.11.16.16.14.94.9NowNow 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 Tutwiler for hot-weather activities is from late May to mid September, with a peak score in the third week of June.

Beach/Pool Score in Tutwiler

Beach/Pool Score in Tutwilerbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.06.00.10.16.06.0NowNowtemperaturetemperature 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 in Tutwiler typically lasts for 8.3 months (253 days), from around March 11 to around November 19, rarely starting before February 19 or after March 31, and rarely ending before October 31 or after December 9.

Time Spent in Various Temperature Bands and the Growing Season in Tutwiler

Time Spent in Various Temperature Bands and the Growing Season in Tutwilergrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1150%Mar 1150%Nov 1950%Nov 1990%Mar 3190%Mar 3190%Oct 3190%Oct 3110%Feb 1910%Feb 1910%Dec 910%Dec 9Jul 21100%Jul 21100%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 in Tutwiler should appear around February 9, only rarely appearing before January 24 or after February 27.

Growing Degree Days in Tutwiler

Growing Degree Days in TutwilerJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FFeb 987°FFeb 987°FMay 4900°FMay 4900°FJun 111,800°FJun 111,800°FDec 315,638°FDec 315,638°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 4.7 months, from April 9 to August 31, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest month of the year in Tutwiler is June, with an average of 6.6 kWh.

The darker period of the year lasts for 2.8 months, from November 12 to February 4, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year in Tutwiler is December, with an average of 2.6 kWh.

Average Daily Incident Shortwave Solar Energy in Tutwiler

Average Daily Incident Shortwave Solar Energy in TutwilerbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 136.7 kWhJun 136.7 kWhDec 232.5 kWhDec 232.5 kWhApr 95.8 kWhApr 95.8 kWhAug 315.8 kWhAug 315.8 kWhFeb 43.3 kWhFeb 43.3 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) 2.93.74.96.06.56.66.56.25.44.43.22.6

For the purposes of this report, the geographical coordinates of Tutwiler are 34.015 deg latitude, -90.432 deg longitude, and 154 ft elevation.

The topography within 2 miles of Tutwiler is essentially flat, with a maximum elevation change of 20 feet and an average elevation above sea level of 149 feet. Within 10 miles is also essentially flat (43 feet). Within 50 miles is essentially flat (502 feet).

The area within 2 miles of Tutwiler is covered by cropland (96%), within 10 miles by cropland (96%), and within 50 miles by cropland (67%) and trees (15%).

This report illustrates the typical weather in Tutwiler, 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

There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Tutwiler.

For each station, the records are corrected for the elevation difference between that station and Tutwiler according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Tutwiler is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Tutwiler and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Tutwiler and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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.