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Weather & Climate
Williston, South Carolina, United States
Overview
Climate data and monthly weather averages for Williston.
Key Metrics
Annual Avg
17.8°C
Summer Avg
27.1°C
Winter Avg
8.1°C
Record High
41.9°C
Record Low
-10.4°C
Annual Precipitation
1168.4 mm
Avg Humidity
75%
Summer Humidity
71%
Winter Humidity
80%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 26.7° | 6.7° | -10.4° | 73.2 | 80% | 89 | 47.2 |
| Feb | 26.6° | 8.7° | -6.7° | 90.2 | 81% | 97 | 46.2 |
| Mar | 28.5° | 12.8° | -5.9° | 91.8 | 79% | 140 | 47.8 |
| Apr | 34.4° | 17.6° | -1.7° | 78.9 | 75% | 173 | 49.6 |
| May | 38.7° | 22.5° | 6.5° | 95.5 | 71% | 193 | 40.8 |
| Jun | 41.1° | 26.3° | 13.2° | 129.9 | 71% | 192 | 41.4 |
| Jul | 40.1° | 27.9° | 16.2° | 132.1 | 70% | 191 | 33.4 |
| Aug | 41.9° | 27.2° | 15.1° | 126.2 | 73% | 173 | 36.1 |
| Sep | 38.2° | 24.3° | 8.8° | 96.6 | 72% | 146 | 65.5 |
| Oct | 38.1° | 18.8° | -0.4° | 80.6 | 72% | 124 | 61.2 |
| Nov | 29.7° | 12.5° | -6.4° | 71.7 | 73% | 93 | 44 |
| Dec | 26.5° | 8.8° | -8.5° | 101.7 | 80% | 78 | 45.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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