1. WeatherSpark.com
  2. United States
  3. Georgia

Climate and Average Weather Year Round in Chester Georgia, United States

In Chester, 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 38°F to 93°F and is rarely below 26°F or above 98°F.

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

Climate in Chester

coolcomfortablewarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow67%67%49%49%clearovercastprecipitation: 4.3 inprecipitation: 4.3 in2.2 in2.2 inmuggy: 95%muggy: 95%1%1%drydrytourism score: 6.2tourism score: 6.22.12.1
Chester weather by month. Click on each chart for more information.

Average Temperature in Chester

The hot season lasts for 3.9 months, from May 21 to September 17, with an average daily high temperature above 86°F. The hottest day of the year is July 22, with an average high of 93°F and low of 72°F.

The cool season lasts for 2.9 months, from November 29 to February 26, with an average daily high temperature below 66°F. The coldest day of the year is January 24, with an average low of 38°F and high of 59°F.

Average High and Low Temperature in Chester

Average High and Low Temperature in ChesterhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2459°FJan 2459°FJul 2293°FJul 2293°F38°F38°F72°F72°FMay 2186°FMay 2186°FSep 1786°FSep 1786°FNov 2966°FNov 2966°FFeb 2666°FFeb 2666°F62°F62°F65°F65°F44°F44°F43°F43°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.

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 Chester

Average Hourly Temperature in ChesterJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 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.

Pocito, Argentina (4,533 miles away) and Al Quwayrah, Jordan (6,554 miles) are the far-away foreign places with temperatures most similar to Chester (view comparison).

Compare Chester to another city:

Clouds

In Chester, 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 in Chester begins around September 3 and lasts for 2.8 months, ending around November 28. On October 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.

The cloudier part of the year begins around November 28 and lasts for 9.2 months, ending around September 3. On July 13, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.

Cloud Cover Categories in Chester

Cloud Cover Categories in ChesterclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2767%Oct 2767%Jul 1349%Jul 1349%Sep 358%Sep 358%Nov 2858%Nov 2858%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.

Precipitation

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

The wetter season lasts 3.3 months, from May 30 to September 10, with a greater than 32% chance of a given day being a wet day. The chance of a wet day peaks at 48% on July 19.

The drier season lasts 8.6 months, from September 10 to May 30. The smallest chance of a wet day is 16% on October 30.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 48% on July 19.

Daily Chance of Precipitation in Chester

Daily Chance of Precipitation in ChesterwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 1948%Jul 1948%Oct 3016%Oct 3016%Jan 127%Jan 127%May 3032%May 3032%Sep 1032%Sep 1032%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).

Rainfall

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. Chester experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Chester. The most rain falls during the 31 days centered around February 22, with an average total accumulation of 4.3 inches.

The least rain falls around October 23, with an average total accumulation of 2.2 inches.

Average Monthly Rainfall in Chester

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 liquid-equivalent snowfall.

Sun

The length of the day in Chester varies significantly over the course of the year. In 2021, the shortest day is December 21, with 10 hours, 1 minute of daylight; the longest day is June 20, with 14 hours, 17 minutes of daylight.

Hours of Daylight and Twilight in Chester

Hours of Daylight and Twilight in ChesterJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 17 minJun 2014 hr, 17 minJun 2012 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 1 minDec 2110 hr, 1 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.

The earliest sunrise is at 6:24 AM on June 11, and the latest sunrise is 1 hour, 29 minutes later at 7:54 AM on November 6. The earliest sunset is at 5:26 PM on December 4, and the latest sunset is 3 hours, 17 minutes later at 8:43 PM on June 29.

Daylight saving time (DST) is observed in Chester during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.

Sunrise & Sunset with Twilight and Daylight Saving Time in Chester

Sunrise & Sunset with Twilight and Daylight Saving Time in ChesterJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 116:24 AMJun 116:24 AM8:43 PMJun 298:43 PMJun 29Dec 45:26 PMDec 45:26 PM7:54 AMNov 67:54 AMNov 6Mar 14DSTMar 14DSTDSTNov 7DSTNov 7daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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.

Moon

The figure below presents a compact representation of key lunar data for 2021. 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 Chester

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.

Humidity

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.

Chester experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.3 months, from May 5 to October 14, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The muggiest day of the year is July 25, with muggy conditions 95% of the time.

The least muggy day of the year is January 30, with muggy conditions 1% of the time.

Humidity Comfort Levels in Chester

Humidity Comfort Levels in ChestermuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 301%Jan 301%95%Jul 2595%Jul 25May 524%May 524%Oct 1424%Oct 1424%NowNowmiserablemiserableoppressiveoppressivedrydryhumidhumidcomfortablecomfortable
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.

Wind

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 Chester experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.8 months, from October 17 to May 11, with average wind speeds of more than 6.3 miles per hour. The windiest day of the year is March 8, with an average hourly wind speed of 7.5 miles per hour.

The calmer time of year lasts for 5.2 months, from May 11 to October 17. The calmest day of the year is August 8, with an average hourly wind speed of 5.0 miles per hour.

Average Wind Speed in Chester

Average Wind Speed in ChesterwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphMar 87.5 mphMar 87.5 mphAug 85.0 mphAug 85.0 mphOct 176.3 mphOct 176.3 mphMay 116.3 mphMay 116.3 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the east for 3.8 months, from August 13 to December 6, with a peak percentage of 46% on September 7. The wind is most often from the west for 8.2 months, from December 6 to August 13, with a peak percentage of 33% on January 1.

Wind Direction in Chester

Wind Direction in ChesterWEWJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Best Time of Year to Visit

To characterize how pleasant the weather is in Chester 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 Chester for general outdoor tourist activities are from mid April to late May and from mid September to late October, with a peak score in the first week of October.

Tourism Score in Chester

Tourism Score in Chesterbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.22.12.16.16.14.44.4NowNowprecipitationprecipitationcloudscloudstemperaturetemperaturetourism 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 Chester for hot-weather activities is from mid May to late September, with a peak score in the first week of September.

Beach/Pool Score in Chester

Beach/Pool Score in Chesterbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.75.70.40.45.55.5NowNowprecipitationprecipitationcloudscloudstemperaturetemperaturebeach/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.

Growing Season

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 Chester typically lasts for 8.3 months (254 days), from around March 12 to around November 20, rarely starting before February 14 or after April 2, and rarely ending before October 29 or after December 15.

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

Time Spent in Various Temperature Bands and the Growing Season in Chestergrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1250%Mar 1250%Nov 2050%Nov 2090%Apr 290%Apr 290%Oct 2990%Oct 2910%Feb 1410%Feb 1410%Dec 1510%Dec 151%Jan 51%Jan 5Jul 16100%Jul 16100%NowNowvery coldcoldcoolcomfortablewarmhotsweltering
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 Chester should appear around January 24, only rarely appearing before January 13 or after February 8.

Growing Degree Days in Chester

Growing Degree Days in ChesterJanFebMarAprMayJunJulAugSepOctNovDec0°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 2490°FJan 2490°FApr 23900°FApr 23900°FJun 31,800°FJun 31,800°FDec 315,958°FDec 315,958°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 3.8 months, from April 9 to August 1, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is May 19, with an average of 6.8 kWh.

The darker period of the year lasts for 2.7 months, from November 13 to February 5, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 21, with an average of 2.8 kWh.

Average Daily Incident Shortwave Solar Energy in Chester

Average Daily Incident Shortwave Solar Energy in ChesterbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMay 196.8 kWhMay 196.8 kWhDec 212.8 kWhDec 212.8 kWhApr 96.0 kWhApr 96.0 kWhAug 16.0 kWhAug 16.0 kWhFeb 53.6 kWhFeb 53.6 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.

Topography

For the purposes of this report, the geographical coordinates of Chester are 32.394 deg latitude, -83.153 deg longitude, and 361 ft elevation.

The topography within 2 miles of Chester contains only modest variations in elevation, with a maximum elevation change of 118 feet and an average elevation above sea level of 348 feet. Within 10 miles also contains only modest variations in elevation (272 feet). Within 50 miles contains only modest variations in elevation (614 feet).

The area within 2 miles of Chester is covered by trees (72%) and cropland (16%), within 10 miles by trees (52%) and cropland (38%), and within 50 miles by trees (55%) and cropland (27%).

Data Sources

This report illustrates the typical weather in Chester, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Chester.

For each station, the records are corrected for the elevation difference between that station and Chester 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 Chester is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Chester and a given station.

The stations contributing to this reconstruction are: Heart of Georgia Regional Airport (KEZM, 50%, 20 kilometers, south); W. H. 'Bud' Barron Airport (KDBN, 37%, 25 kilometers, northeast); and Robins Air Force Base (KWRB, 13%, 50 kilometers, northwest).

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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.