Congaree National Park
- Annual mean
- 17.4 °C
- Warmest month
- July
- Wettest month
- June
Twelve month analysis of atmospheric normals for a representative point in South Carolina
Detailed climatology profile for Sumter National Forest, providing long-term representative-point measurements for the 1991 to 2020 period. This data documents consistent monthly patterns for minimum, mean, and maximum temperatures, average daily precipitation, relative humidity, wind speed, and daylight duration. Measurements reflect localized records at an elevation of 178.68 meters rather than region-wide weather or current seasonal forecasts.

Analysis of twelve month average temperatures and daily precipitation rates across the region
Compare average temperature bounds, precipitation rates, humidity, wind, and daylight across the year
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 5 °C-8.2° to 20.1° | 3.4 mm/day | 82% | 2.2 m/s | 10 hours |
| February | 6.9 °C-6.3° to 21.6° | 3.4 mm/day | 81.2% | 2.2 m/s | 10.7 hours |
| March | 11 °C-4.1° to 25.1° | 3.6 mm/day | 79.3% | 2.3 m/s | 11.8 hours |
| April | 16 °C1.1° to 29° | 3 mm/day | 76.5% | 2.3 m/s | 12.9 hours |
| May | 21.1 °C7° to 33.3° | 2.8 mm/day | 73.5% | 2 m/s | 13.8 hours |
| June | 25.3 °C13.8° to 37° | 3.6 mm/day | 71.1% | 1.7 m/s | 14.3 hours |
| July | 27.5 °C17.7° to 38.4° | 3.4 mm/day | 68.7% | 1.6 m/s | 14.1 hours |
| August | 26.5 °C16.3° to 38.1° | 3.5 mm/day | 69.7% | 1.5 m/s | 13.3 hours |
| September | 22.9 °C10.4° to 35.1° | 3.2 mm/day | 70.9% | 1.8 m/s | 12.2 hours |
| October | 16.7 °C2° to 30.8° | 2.7 mm/day | 72.7% | 1.9 m/s | 11.1 hours |
| November | 10.5 °C-3.1° to 25.4° | 3 mm/day | 75% | 2 m/s | 10.2 hours |
| December | 6.4 °C-5.7° to 21.2° | 3.4 mm/day | 81% | 2 m/s | 9.7 hours |
Comparative monthly normals for temperature, precipitation, wind, humidity, and daylight duration
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Month-by-month atmospheric patterns across diverse regional settings and protected landscapes






Deepen your knowledge of Sumter National Forest by examining its unique tripartite geographic structure. MoriAtlas data allows for detailed exploration of the transition from Piedmont plains to Blue Ridge mountain terrain, providing a clear understanding of the forest's role as a significant protected landscape within South Carolina.