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Climate and Average Weather Year Round at Hattiesburg Municipal Airport Mississippi, United States

At Hattiesburg Municipal Airport, the summers are long, hot, and oppressive; 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 40°F to 92°F and is rarely below 26°F or above 97°F.

Based on the tourism score, the best times of year to visit Hattiesburg Municipal Airport for warm-weather activities are from early April to late May and from mid September to late October.

Climate at Hattiesburg Municipal Airport

coolcomfortablewarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow68%68%47%47%clearovercastprecipitation: 5.5 inprecipitation: 5.5 in3.1 in3.1 inmuggy: 96%muggy: 96%2%2%drydrytourism score: 6.1tourism score: 6.12.32.3
Hattiesburg Municipal Airport weather by month. Click on each chart for more information.

The hot season lasts for 4.1 months, from May 19 to September 23, with an average daily high temperature above 86°F. The hottest month of the year at Hattiesburg Municipal Airport is July, with an average high of 92°F and low of 73°F.

The cool season lasts for 2.8 months, from November 29 to February 23, with an average daily high temperature below 67°F. The coldest month of the year at Hattiesburg Municipal Airport is January, with an average low of 40°F and high of 61°F.

Average High and Low Temperature at Hattiesburg Municipal Airport

Average High and Low Temperature at Hattiesburg Municipal AirporthotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1761°FJan 1761°FAug 992°FAug 992°F40°F40°F73°F73°FMay 1986°FMay 1986°FSep 2386°FSep 2386°FNov 2967°FNov 2967°FFeb 2367°FFeb 2367°F64°F64°F65°F65°F45°F45°F44°F44°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 61°F65°F72°F78°F85°F90°F92°F91°F87°F79°F70°F63°F
Temp. 49°F52°F60°F66°F73°F79°F81°F81°F76°F67°F57°F51°F
Low 40°F43°F50°F56°F64°F70°F73°F72°F67°F56°F47°F43°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 Hattiesburg Municipal Airport

Average Hourly Temperature at Hattiesburg Municipal 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 coldcoldcoldcoldcoldcoolcoolcomfortablewarmwarmhotvery 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.

Er Regueb, Tunisia (5,482 miles away); Al Quwayrah, Jordan (6,874 miles); and Adana, Turkey (6,523 miles) are the far-away foreign places with temperatures most similar to Hattiesburg Municipal Airport (view comparison).

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At Hattiesburg Municipal 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 Hattiesburg Municipal Airport begins around August 28 and lasts for 3.3 months, ending around December 4.

The clearest month of the year at Hattiesburg Municipal Airport is October, 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 December 4 and lasts for 8.7 months, ending around August 28.

The cloudiest month of the year at Hattiesburg Municipal Airport is July, during which on average the sky is overcast or mostly cloudy 51% of the time.

Cloud Cover Categories at Hattiesburg Municipal Airport

Cloud Cover Categories at Hattiesburg Municipal AirportclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 1168%Oct 1168%Jul 1047%Jul 1047%Aug 2857%Aug 2857%Dec 458%Dec 458%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%48%45%39%41%45%51%45%39%33%37%47%
Clearer 51%52%55%61%59%55%49%55%61%67%63%53%

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

The wetter season lasts 2.9 months, from May 30 to August 27, with a greater than 38% chance of a given day being a wet day. The month with the most wet days at Hattiesburg Municipal Airport is July, with an average of 16.6 days with at least 0.04 inches of precipitation.

The drier season lasts 9.1 months, from August 27 to May 30. The month with the fewest wet days at Hattiesburg Municipal Airport is October, with an average of 6.6 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 Hattiesburg Municipal Airport is July, with an average of 16.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 55% on July 25.

Daily Chance of Precipitation at Hattiesburg Municipal Airport

Daily Chance of Precipitation at Hattiesburg Municipal AirportwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 2555%Jul 2555%Oct 1420%Oct 1420%May 3038%May 3038%Aug 2738%Aug 2738%NowNowrain
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 9.5d9.1d9.5d8.7d10.0d13.5d16.6d13.7d9.1d6.6d7.6d9.1d
Mixed 0.3d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Any 9.8d9.1d9.5d8.7d10.0d13.5d16.6d13.7d9.1d6.6d7.6d9.2d

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. Hattiesburg Municipal Airport experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Hattiesburg Municipal Airport. The month with the most rain at Hattiesburg Municipal Airport is February, with an average rainfall of 5.5 inches.

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

Average Monthly Rainfall at Hattiesburg Municipal Airport

Average Monthly Rainfall at Hattiesburg Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inFeb 155.5 inFeb 155.5 inOct 53.1 inOct 53.1 inJul 144.7 inJul 144.7 inMay 64.2 inMay 64.2 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 5.1″5.5″5.4″4.7″4.3″4.3″4.7″3.9″3.6″3.2″4.0″4.8″

The length of the day at Hattiesburg Municipal Airport varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 7 minutes of daylight; the longest day is June 20, with 14 hours, 11 minutes of daylight.

Hours of Daylight and Twilight at Hattiesburg Municipal Airport

Hours of Daylight and Twilight at Hattiesburg Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 11 minJun 2014 hr, 11 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 2210 hr, 7 minDec 2110 hr, 7 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 10.4h11.1h12.0h13.0h13.8h14.2h13.9h13.2h12.3h11.4h10.6h10.2h

The earliest sunrise is at 5:52 AM on June 11, and the latest sunrise is 1 hour, 22 minutes later at 7:13 AM on November 2. The earliest sunset is at 4:53 PM on December 2, and the latest sunset is 3 hours, 11 minutes later at 8:05 PM on June 30.

Daylight saving time (DST) is observed at Hattiesburg Municipal 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 Hattiesburg Municipal Airport

Sunrise & Sunset with Twilight and Daylight Saving Time at Hattiesburg Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 115:52 AMJun 115:52 AM8:05 PMJun 308:05 PMJun 30Dec 24:53 PMDec 24:53 PM7:13 AMNov 27:13 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 Hattiesburg Municipal Airport

Solar Elevation and Azimuth at Hattiesburg Municipal 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 AM000101010102020203030304040405050606070800001010102020202030303040404050506060707035NowNow
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 Hattiesburg Municipal 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.

Hattiesburg Municipal Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.7 months, from April 27 to October 17, during which time the comfort level is muggy, oppressive, or miserable at least 26% of the time. The month with the most muggy days at Hattiesburg Municipal Airport is July, with 29.4 days that are muggy or worse.

The month with the fewest muggy days at Hattiesburg Municipal Airport is February, with 1.0 days that are muggy or worse.

Humidity Comfort Levels at Hattiesburg Municipal Airport

Humidity Comfort Levels at Hattiesburg Municipal AirportmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 292%Jan 292%96%Jul 2296%Jul 22Apr 2726%Apr 2726%Oct 1726%Oct 1726%NowNowmiserablemiserableoppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortable
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 1.1d1.0d2.2d5.6d14.8d24.7d29.4d28.6d20.2d8.5d3.5d2.0d

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 Hattiesburg Municipal Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.7 months, from September 30 to May 20, with average wind speeds of more than 3.7 miles per hour. The windiest month of the year at Hattiesburg Municipal Airport is March, with an average hourly wind speed of 4.5 miles per hour.

The calmer time of year lasts for 4.3 months, from May 20 to September 30. The calmest month of the year at Hattiesburg Municipal Airport is July, with an average hourly wind speed of 2.9 miles per hour.

Average Wind Speed at Hattiesburg Municipal Airport

Average Wind Speed at Hattiesburg Municipal AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mphMar 64.5 mphMar 64.5 mphJul 282.8 mphJul 282.8 mphSep 303.7 mphSep 303.7 mphMay 203.7 mphMay 203.7 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) 4.34.54.54.33.83.22.93.03.43.94.14.3

The predominant average hourly wind direction at Hattiesburg Municipal Airport varies throughout the year.

The wind is most often from the south for 6.1 months, from February 24 to August 28, with a peak percentage of 51% on May 20. The wind is most often from the east for 3.9 weeks, from August 28 to September 24, with a peak percentage of 33% on September 18. The wind is most often from the north for 5.0 months, from September 24 to February 24, with a peak percentage of 38% on January 1.

Wind Direction at Hattiesburg Municipal Airport

Wind Direction at Hattiesburg Municipal AirportNSENJanFebMarAprMayJunJulAugSepOctNovDec0%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 Hattiesburg Municipal 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 Hattiesburg Municipal Airport for general outdoor tourist activities are from early April to late May and from mid September to late October, with a peak score in the first week of May.

Tourism Score at Hattiesburg Municipal Airport

Tourism Score at Hattiesburg Municipal Airportbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.16.12.32.36.16.14.34.3NowNowtemperaturetemperature 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 Hattiesburg Municipal Airport for hot-weather activities is from mid May to late September, with a peak score in the first week of September.

Beach/Pool Score at Hattiesburg Municipal Airport

Beach/Pool Score at Hattiesburg Municipal Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.85.80.50.55.85.85.35.3NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitationbeach/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 Hattiesburg Municipal Airport typically lasts for 8.5 months (261 days), from around March 4 to around November 20, rarely starting before February 8 or after March 28, and rarely ending before November 1 or after December 12.

Time Spent in Various Temperature Bands and the Growing Season at Hattiesburg Municipal Airport

Time Spent in Various Temperature Bands and the Growing Season at Hattiesburg Municipal 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 450%Mar 450%Nov 2050%Nov 2090%Mar 2890%Mar 2890%Nov 190%Nov 110%Feb 810%Feb 810%Dec 1210%Dec 120%Jan 130%Jan 13Jul 18100%Jul 18100%NowNowvery 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 Hattiesburg Municipal Airport should appear around January 20, only rarely appearing before January 12 or after February 4.

Growing Degree Days at Hattiesburg Municipal Airport

Growing Degree Days at Hattiesburg Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FJan 2090°FJan 2090°FApr 15900°FApr 15900°FMay 271,800°FMay 271,800°FDec 316,343°FDec 316,343°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 3.5 months, from April 3 to July 18, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year at Hattiesburg Municipal Airport is May, with an average of 6.5 kWh.

The darker period of the year lasts for 2.5 months, from November 15 to February 2, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest month of the year at Hattiesburg Municipal Airport is December, with an average of 2.9 kWh.

Average Daily Incident Shortwave Solar Energy at Hattiesburg Municipal Airport

Average Daily Incident Shortwave Solar Energy at Hattiesburg Municipal AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMay 186.6 kWhMay 186.6 kWhDec 232.8 kWhDec 232.8 kWhApr 35.9 kWhApr 35.9 kWhJul 185.9 kWhJul 185.9 kWhFeb 23.6 kWhFeb 23.6 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) 3.24.05.16.26.56.35.95.75.34.63.62.9

For the purposes of this report, the geographical coordinates of Hattiesburg Municipal Airport are 31.265 deg latitude, -89.253 deg longitude, and 125 ft elevation.

The topography within 2 miles of Hattiesburg Municipal Airport contains only modest variations in elevation, with a maximum elevation change of 187 feet and an average elevation above sea level of 150 feet. Within 10 miles also contains only modest variations in elevation (354 feet). Within 50 miles contains only modest variations in elevation (535 feet).

The area within 2 miles of Hattiesburg Municipal Airport is covered by herbaceous vegetation (36%), trees (22%), artificial surfaces (22%), and cropland (20%), within 10 miles by trees (40%) and herbaceous vegetation (22%), and within 50 miles by trees (57%) and herbaceous vegetation (20%).

This report illustrates the typical weather at Hattiesburg Municipal 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

Hattiesburg Municipal 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 Hattiesburg–Laurel Regional Airport; Gulfport-Biloxi Regional Airport; Biloxi, Keesler Air Force Base, Navu; Trent Lott International Airport; Slidell Airport; Mobile Regional Airport; Key Field; and Mc Comb/Pike County Airport/John E Lewis Field.

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.