WeatherWX.com
Williston Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 55°F Lo 45°F | Hi 57°F Lo 47°F | Hi 61°F Lo 52°F | Hi 67°F Lo 59°F | Hi 74°F Lo 67°F | Hi 80°F Lo 74°F | Hi 83°F Lo 78°F | Hi 83°F Lo 78°F | Hi 80°F Lo 74°F | Hi 73°F Lo 65°F | Hi 65°F Lo 56°F | Hi 60°F Lo 50°F |
| 12 mph | 12 mph | 12 mph | 12 mph | 11 mph | 10 mph | 10 mph | 9 mph | 10 mph | 11 mph | 11 mph | 11 mph |
| 4.1 in | 4.5 in | 4 in | 3.8 in | 4.9 in | 6 in | 6.8 in | 8.3 in | 7.4 in | 4 in | 5 in | 4.5 in |
| 74% | 76% | 74% | 74% | 77% | 77% | 78% | 78% | 75% | 74% | 74% | 76% |
| 39% | 43% | 41% | 33% | 37% | 35% | 38% | 41% | 38% | 34% | 37% | 40% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 24 | 21 | 24 | 23 | 21 | 16 | 13 | 14 | 19 | 25 | 24 | 24 |
| 6 | 7 | 7 | 7 | 10 | 14 | 18 | 17 | 11 | 6 | 6 | 8 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 3 |
| 194 | 169 | 186 | 219 | 208 | 206 | 195 | 177 | 187 | 221 | 197 | 192 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 13°C Lo 7°C | Hi 14°C Lo 8°C | Hi 16°C Lo 11°C | Hi 20°C Lo 15°C | Hi 23°C Lo 20°C | Hi 27°C Lo 24°C | Hi 29°C Lo 26°C | Hi 28°C Lo 25°C | Hi 27°C Lo 23°C | Hi 23°C Lo 19°C | Hi 18°C Lo 13°C | Hi 15°C Lo 10°C |
| 19 km/h | 19 km/h | 20 km/h | 19 km/h | 18 km/h | 16 km/h | 17 km/h | 15 km/h | 17 km/h | 17 km/h | 18 km/h | 18 km/h |
| 105 mm | 115 mm | 101 mm | 95 mm | 124 mm | 151 mm | 172 mm | 211 mm | 187 mm | 101 mm | 127 mm | 114 mm |
| 74% | 76% | 74% | 74% | 77% | 77% | 78% | 78% | 75% | 74% | 74% | 76% |
| 39% | 43% | 41% | 33% | 37% | 35% | 38% | 41% | 38% | 34% | 37% | 40% |
| 1020 mb | 1020 mb | 1019 mb | 1017 mb | 1017 mb | 1015 mb | 1016 mb | 1016 mb | 1016 mb | 1017 mb | 1020 mb | 1020 mb |
| 24 | 21 | 24 | 23 | 21 | 16 | 13 | 14 | 19 | 25 | 24 | 24 |
| 6 | 7 | 7 | 7 | 10 | 14 | 18 | 17 | 11 | 6 | 6 | 8 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 3 |
| 194 | 169 | 186 | 219 | 208 | 206 | 195 | 177 | 187 | 221 | 197 | 192 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.