Williston Climate: Weather by Month and Best Time to Visit
Best months for Williston: September, August, July.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -6°C | -15°C | 14 mm | 4 | – | – | 4.5 |
| February | -3°C | -13°C | 12 mm | 4 | – | – | 4.6 |
| March | 4°C | -7°C | 22 mm | 5 | – | – | 4.9 |
| April | 13°C | 0°C | 37 mm | 7 | – | – | 6.5 |
| May | 19°C | 6°C | 64 mm | 9 | – | – | 7.4 |
| June | 24°C | 12°C | 80 mm | 11 | – | – | 7.6 |
| July | 28°C | 15°C | 59 mm | 8 | – | – | 8.0 |
| August | 28°C | 13°C | 44 mm | 7 | – | – | 8.1 |
| September | 22°C | 8°C | 44 mm | 6 | – | – | 8.3 |
| October | 13°C | 1°C | 32 mm | 6 | – | – | 6.7 |
| November | 3°C | -6°C | 21 mm | 5 | – | – | 4.9 |
| December | -4°C | -13°C | 15 mm | 4 | – | – | 4.5 |