Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Mount Vernon is from May, June, September. — consistent weather climate
🌦Humid
| Score | 12 | 13 | 17 | 49 | 78 | 79 | 68 | 76 | 77 | 71 | 39 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Humid | Humid | Humid | Humid | Cool & rainy | Cold | Cold |
| Temperature | -4–4°C | -3–5°C | 0–9°C | 5–15°C | 11–21°C | 16–26°C | 20–29°C | 20–28°C | 16–24°C | 10–18°C | 4–12°C | 0–7°C |
| Feels like | -8–0°C | -8–2°C | -4–6°C | 2–13°C | 9–21°C | 17–27°C | 22–32°C | 22–30°C | 16–25°C | 9–17°C | 0–9°C | -4–3°C |
| Precipitation | 97mm 10 days | 90mm 10 days | 117mm 10 days | 110mm 11 days | 94mm 10 days | 99mm 9 days | 133mm 12 days | 107mm 11 days | 118mm 9 days | 121mm 10 days | 79mm 7 days | 116mm 11 days |
| Sunshine | 6.1h ☀︎ 64% | 6.7h ☀︎ 63% | 8.1h ☀︎ 68% | 8.4h ☀︎ 63% | 9.2h ☀︎ 63% | 11.0h ☀︎ 73% | 11.5h ☀︎ 78% | 10.7h ☀︎ 78% | 8.9h ☀︎ 71% | 7.6h ☀︎ 69% | 6.9h ☀︎ 70% | 5.4h ☀︎ 58% |
| Wind | NW · 19 km/h | W · 19 km/h | NW · 20 km/h | W · 20 km/h | SW · 17 km/h | SW · 16 km/h | SW · 15 km/h | SW · 15 km/h | N · 15 km/h | W · 17 km/h | W · 18 km/h | W · 18 km/h |
| Humidity (%) | 68% | 70% | 67% | 69% | 72% | 72% | 75% | 75% | 76% | 75% | 71% | 74% |
| Day length | 9.6h | 10.7h | 12.0h | 13.3h | 14.5h | 15.1h | 14.8h | 13.8h | 12.4h | 11.1h | 9.9h | 9.3h |