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Average Weather in August in La Grange Georgia, United States

In La Grange, the month of August is characterized by gradually falling daily high temperatures, with daily highs decreasing by 3°F, from 90°F to 87°F over the course of the month, and rarely exceeding 96°F or dropping below 81°F.

Daily low temperatures decrease by 3°F, from 70°F to 66°F, rarely falling below 60°F or exceeding 74°F.

For reference, on July 23, the hottest day of the year, temperatures in La Grange typically range from 70°F to 90°F, while on January 26, the coldest day of the year, they range from 34°F to 55°F.

Average High and Low Temperature in August

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 hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, 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 August

Average Hourly Temperature in August in La Grange18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMJulSepcoolhotwarmcomfortable
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.


The month of August in La Grange experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 43% to 38%.

The clearest day of the month is August 31, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on October 8, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in August

Cloud Cover Categories in August in La Grange1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepAug 157%Aug 157%Aug 3162%Aug 3162%Aug 1160%Aug 1160%Aug 2159%Aug 2159%clearpartly cloudymostly cloudyovercastmostly clear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.


A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In La Grange, the chance of a wet day over the course of August is very rapidly decreasing, starting the month at 42% and ending it at 30%.

For reference, the year's highest daily chance of a wet day is 47% on July 9, and its lowest chance is 18% on October 16.

Probability of Precipitation in August

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).


To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during August in La Grange is gradually decreasing, starting the month at 3.1 inches, when it rarely exceeds 5.0 inches or falls below 1.6 inches, and ending the month at 2.7 inches, when it rarely exceeds 5.1 inches or falls below 1.0 inches.

The lowest average 31-day accumulation is 2.7 inches on August 24.

Average Monthly Rainfall in August

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.


Over the course of August in La Grange, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 53 minutes, implying an average daily decrease of 1 minute, 47 seconds, and weekly decrease of 12 minutes, 26 seconds.

The shortest day of the month is August 31, with 12 hours, 52 minutes of daylight and the longest day is August 1, with 13 hours, 45 minutes of daylight.

Hours of Daylight and Twilight in August

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 of the month in La Grange is 6:53 AM on August 1 and the latest sunrise is 20 minutes later at 7:14 AM on August 31.

The latest sunset is 8:38 PM on August 1 and the earliest sunset is 33 minutes earlier at 8:05 PM on August 31.

Daylight saving time is observed in La Grange during 2017, but it neither starts nor ends during August, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 6:31 AM and sets 14 hours, 20 minutes later, at 8:52 PM, while on December 21, the shortest day of the year, it rises at 7:39 AM and sets 9 hours, 58 minutes later, at 5:37 PM.

Sunrise & Sunset with Twilight in August

The solar day over the course of August. 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.


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.

The chance that a given day will be muggy in La Grange is rapidly decreasing during August, falling from 92% to 81% over the course of the month.

For reference, on July 23, the muggiest day of the year, there are muggy conditions 94% of the time, while on January 24, the least muggy day of the year, there are muggy conditions 1% of the time.

Humidity Comfort Levels in August

Humidity Comfort Levels in August in La Grange1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%10%20%30%40%50%60%70%80%90%100%JulSepAug 192%Aug 192%Aug 3181%Aug 3181%Aug 1190%Aug 1190%Aug 2188%Aug 2188%miserablemiserablehumidhumiddrydrymuggymuggyoppressiveoppressivecomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.


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 La Grange is essentially constant during August, remaining within 0.1 miles per hour of 3.2 miles per hour throughout.

For reference, on March 8, the windiest day of the year, the daily average wind speed is 4.9 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 3.1 miles per hour.

The lowest daily average wind speed during August is 3.1 miles per hour on August 7.

Average Wind Speed in August

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The wind direction in La Grange during August is predominantly out of the west from August 1 to August 12 and the east from August 12 to August 31.

Wind Direction in August

Wind Direction in August in La GrangeWE1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepsouthnortheastwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 in La Grange is essentially constant during August, remaining within 0.2 kWh of 6.0 kWh throughout.

Average Daily Incident Shortwave Solar Energy in August

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.


For the purposes of this report, the geographical coordinates of La Grange are 33.039 deg latitude, -85.031 deg longitude, and 728 ft elevation.

The topography within 2 miles of La Grange contains only modest variations in elevation, with a maximum elevation change of 180 feet and an average elevation above sea level of 736 feet. Within 10 miles also contains only modest variations in elevation (364 feet). Within 50 miles contains only modest variations in elevation (1,555 feet).

The area within 2 miles of La Grange is covered by artificial surfaces (62%) and trees (28%), within 10 miles by trees (71%) and cropland (11%), and within 50 miles by trees (78%) and cropland (13%).

Data Sources

This report illustrates the typical weather in La Grange year round, 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 La Grange.

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

The stations contributing to this reconstruction are: La Grange, Callaway Airport (95%, 4.2 kilometers, southwest); Newnan-Coweta County Airport (3.5%, 39 kilometers, northeast); and Thomaston, Thomaston-Upson County Airport (1.4%, 72 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports 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.


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.