Updated October 2026
Andersonville National Historic Site Weather by Month
Andersonville National Historic Site is warmest in July, when the nearest NOAA climate station averages a high of 91°F and a low of 70°F, and coldest in January, with an average high of 59°F and an average low of 35°F. July is the wettest month, with about 6 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 13.4 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Andersonville National Historic Site can differ from these, particularly with elevation.
Warmest month
Jul
91°F avg high
Coldest month
Jan
35°F avg low
Wettest month
Jul
6.0 in avg
Longest days
Jun
14.1 h of daylight
Average weather at Andersonville by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 59°F | 35°F | 4.7 in | 10.1 h |
| February | 63°F | 38°F | 4.7 in | 10.9 h |
| March | 70°F | 43°F | 4.7 in | 11.8 h |
| April | 77°F | 50°F | 4.8 in | 12.8 h |
| May | 84°F | 59°F | 3.1 in | 13.6 h |
| June | 89°F | 66°F | 4.8 in | 14.1 h |
| July | 91°F | 70°F | 6.0 in | 13.9 h |
| August | 90°F | 69°F | 4.6 in | 13.2 h |
| September | 87°F | 64°F | 4.4 in | 12.2 h |
| October | 78°F | 53°F | 2.7 in | 11.2 h |
| November | 68°F | 42°F | 3.5 in | 10.3 h |
| December | 61°F | 37°F | 5.4 in | 9.9 h |
| Year total | 53.4 in |
NOAA 1991–2020 climate normals from station USC00090253, 13.4 miles from the park's reference point. Snowfall at the station totals about 0.2 inches in an average year. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Andersonville is at that time of year.
Andersonville weather by season
Winter: December to February
Average highs bottom out at 59°F in January, between 61°F in December and 63°F in February, with average lows between 35°F and 38°F. Together the three months average 14.8 inches of precipitation, about 28% of the yearly total. Daylight is at its shortest, about 9.9 hours in December.
Spring: March to May
Average highs climb from 70°F in March to 84°F in May, with average lows between 43°F and 59°F. Together the three months average 12.6 inches of precipitation, about 24% of the yearly total. Daylight lengthens from about 11.8 hours in March to 13.6 in May.
Summer: June to August
Average highs hold near 90°F in all three months, with average lows between 66°F and 70°F. The average high is 90°F or hotter in July and August. Together the three months average 15.4 inches of precipitation, about 29% of the yearly total and more than in any other season. Daylight is at its longest, about 14.1 hours in June.
Fall: September to November
Average highs fall from 87°F in September to 68°F in November, with average lows between 42°F and 64°F. Together the three months average 10.6 inches of precipitation, about 20% of the yearly total and less than in any other season. Daylight shortens from about 12.2 hours in September to 10.3 in November.
What the National Park Service says about the weather
Summer temperatures reach highs in the 80s-90s and high humidity. Winter temperatures tend to be in the 40s and below. Snow can occur but is rare. Average annual precipitation is 46.24 inches and is fairly evenly distributed throughout the year. The National Prisoner of War Museum is maintained at a cool temperature to help preserve artifacts; dressing in layers is recommended.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Andersonville
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 32.20°N, 84.13°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Andersonville National Historic Site →
Weather and crowds together
July, the warmest month, sees about 1.0× the visitors of the park's average month. May is the busiest month of the year and January the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Andersonville National Historic Site. For hotels, cabins and rentals close to the park, see where to stay near Andersonville.
Where to stay near Andersonville
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Top-rated places to stay near Andersonville
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Frequently Asked Questions
July is the warmest month at Andersonville National Historic Site, with an average high of 91°F and an average low of 70°F. That is the 1991–2020 average at the nearest long-record NOAA station, 13.4 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Andersonville National Historic Site, with an average low of 35°F and an average high of 59°F, based on NOAA 1991–2020 climate normals.
July is the wettest month, with about 6 inches of precipitation. October is the driest, at about 2.7 inches. The station records about 53.4 inches of precipitation in an average year.
Rarely, by the station's record. The nearest long-record NOAA station, 13.4 miles from the park's reference point, totals about 0.2 inches of snow in an average year.
Weather at nearby parks
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Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00090253), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.