Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Williamstown is from May, June, August. — consistent weather climate
🌦Humid
| Score | 10 | 12 | 14 | 34 | 80 | 77 | 66 | 74 | 74 | 60 | 21 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Mild | Humid | Rainy | Humid | Cool & rainy | Mild | Cold | Cold |
| Temperature | -7–1°C | -7–3°C | -3–8°C | 3–13°C | 9–20°C | 14–25°C | 18–27°C | 17–26°C | 13–22°C | 8–16°C | 1–9°C | -3–4°C |
| Feels like | -12–-3°C | -12–-1°C | -7–4°C | -1–10°C | 7–19°C | 14–26°C | 19–30°C | 18–28°C | 12–22°C | 6–15°C | -3–6°C | -8–0°C |
| Precipitation | 97mm 15 days | 77mm 12 days | 113mm 13 days | 133mm 15 days | 75mm 11 days | 103mm 12 days | 182mm 16 days | 132mm 15 days | 132mm 11 days | 100mm 11 days | 83mm 10 days | 121mm 14 days |
| Sunshine | 3.7h ☀︎ 40% | 5.6h ☀︎ 53% | 6.7h ☀︎ 56% | 7.1h ☀︎ 53% | 10.2h ☀︎ 70% | 10.8h ☀︎ 71% | 11.0h ☀︎ 73% | 10.7h ☀︎ 77% | 9.4h ☀︎ 75% | 7.5h ☀︎ 68% | 6.4h ☀︎ 66% | 3.7h ☀︎ 40% |
| Wind | W · 18 km/h | W · 18 km/h | W · 19 km/h | W · 19 km/h | SW · 16 km/h | SW · 15 km/h | SW · 13 km/h | SW · 13 km/h | SW · 14 km/h | SW · 15 km/h | W · 18 km/h | SW · 18 km/h |
| Humidity (%) | 78% | 72% | 71% | 70% | 69% | 74% | 79% | 81% | 81% | 80% | 74% | 79% |
| Day length | 9.5h | 10.6h | 12.0h | 13.4h | 14.6h | 15.3h | 15.0h | 13.9h | 12.5h | 11.0h | 9.8h | 9.1h |