Barnwell, SC
Climate overview — based on NOAA 1991-2020 normals from BARNWELL 5 ENE, SC US.
Year-round temperatures (°F)
Climate summary
Barnwell has an annual average temperature of 64.7°F with about 48.7 inches of precipitation per year. The warmest month is July (average high 93.1°F), and the coldest is January (average low 34.5°F). July is typically the wettest month (5.56 in) and November the driest (2.76 in).
Best time to visit Barnwell
Full guide →Climate change signal
All-time records →237 of 366 (64.8%) of Barnwell'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.
| 2000s | 34 | |
| 2010s | 216 | |
| 2020s | 116 |
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 | 59.1°F | 34.5°F | 46.8°F | 3.78 in | — | — |
| February | 63.1°F | 37.3°F | 50.2°F | 3.90 in | — | — |
| March | 70.1°F | 42.8°F | 56.4°F | 4.15 in | — | — |
| April | 78.1°F | 50.0°F | 64.1°F | 3.07 in | — | — |
| May | 85.3°F | 59.4°F | 72.4°F | 3.58 in | — | — |
| June | 90.3°F | 67.3°F | 78.8°F | 5.51 in | — | — |
| July | 93.1°F | 70.7°F | 81.9°F | 5.56 in | — | — |
| August | 91.9°F | 69.7°F | 80.8°F | 5.25 in | — | — |
| September | 87.3°F | 63.5°F | 75.4°F | 4.27 in | — | — |
| October | 78.4°F | 52.9°F | 65.7°F | 3.08 in | — | — |
| November | 68.8°F | 41.4°F | 55.1°F | 2.76 in | — | — |
| December | 61.4°F | 37.0°F | 49.2°F | 3.80 in | — | — |
Climate twins of Barnwell
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).