Seneca, SC
Climate overview — based on NOAA 1991-2020 normals from CLEMSON OCONEE CO AP, SC US.
Year-round temperatures (°F)
Climate summary
Seneca has an annual average temperature of 61.4°F with about 49 inches of precipitation per year. The warmest month is July (average high 88.7°F), and the coldest is January (average low 33.6°F). August is typically the wettest month (4.91 in) and May the driest (3.49 in).
Best time to visit Seneca
Full guide →Climate change signal
All-time records →137 of 366 (37.4%) of Seneca's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 4 | |
| 2000s | 128 | |
| 2010s | 196 | |
| 2020s | 38 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 51.9°F | 33.6°F | 42.7°F | 4.51 in | — | 11 |
| February | 55.7°F | 36.3°F | 46.0°F | 4.16 in | — | 11 |
| March | 63.9°F | 42.5°F | 53.2°F | 4.67 in | — | 10 |
| April | 72.0°F | 49.8°F | 60.9°F | 3.78 in | — | 10 |
| May | 79.0°F | 58.5°F | 68.8°F | 3.49 in | — | 10 |
| June | 85.3°F | 66.0°F | 75.7°F | 4.40 in | — | 11 |
| July | 88.7°F | 69.9°F | 79.3°F | 3.65 in | — | 12 |
| August | 87.3°F | 68.8°F | 78.0°F | 4.91 in | — | 13 |
| September | 82.0°F | 63.5°F | 72.8°F | 3.68 in | — | 9 |
| October | 72.3°F | 51.8°F | 62.1°F | 3.60 in | — | 9 |
| November | 62.3°F | 41.8°F | 52.0°F | 3.64 in | — | 10 |
| December | 53.8°F | 36.2°F | 45.0°F | 4.50 in | — | 11 |
Climate twins of Seneca
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).