Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Upper Alton is from May, September, October. — consistent weather climate
🌦Humid
| Score | 11 | 24 | 40 | 69 | 74 | 72 | 47 | 68 | 85 | 80 | 47 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cool & rainy | Humid | Humid | Hot & rainy | Humid | Humid | Cool & rainy | Cold | Cold |
| Temperature | -3–5°C | -3–8°C | 4–15°C | 8–19°C | 14–24°C | 20–30°C | 21–31°C | 21–30°C | 17–27°C | 11–20°C | 4–13°C | 0–9°C |
| Feels like | -7–1°C | -7–4°C | 0–12°C | 5–17°C | 14–25°C | 21–32°C | 24–35°C | 23–33°C | 17–28°C | 9–19°C | 1–11°C | -4–5°C |
| Precipitation | 100mm 10 days | 61mm 8 days | 141mm 10 days | 135mm 10 days | 132mm 11 days | 116mm 8 days | 179mm 11 days | 123mm 9 days | 83mm 6 days | 108mm 8 days | 80mm 6 days | 75mm 8 days |
| Sunshine | 4.7h ☀︎ 48% | 7.5h ☀︎ 70% | 7.6h ☀︎ 63% | 9.4h ☀︎ 71% | 9.8h ☀︎ 69% | 11.8h ☀︎ 80% | 11.8h ☀︎ 81% | 11.3h ☀︎ 82% | 10.3h ☀︎ 83% | 8.5h ☀︎ 76% | 7.5h ☀︎ 75% | 5.6h ☀︎ 59% |
| Wind | W · 18 km/h | W · 19 km/h | S · 21 km/h | SW · 21 km/h | SE · 18 km/h | S · 15 km/h | SW · 14 km/h | S · 14 km/h | SE · 14 km/h | SW · 18 km/h | SW · 18 km/h | SW · 18 km/h |
| Humidity (%) | 72% | 67% | 67% | 64% | 69% | 65% | 74% | 74% | 70% | 68% | 68% | 73% |
| Day length | 9.8h | 10.8h | 12.0h | 13.2h | 14.3h | 14.8h | 14.6h | 13.6h | 12.4h | 11.2h | 10.1h | 9.5h |