Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Ottumwa is from June, August, September. — consistent weather climate
🌦Humid
| Score | 13 | 21 | 30 | 59 | 75 | 80 | 71 | 84 | 89 | 77 | 38 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Cool & rainy | Humid | Humid | Pleasant | Pleasant | Mild | Cold | Cold |
| Temperature | -8–0°C | -6–4°C | 1–12°C | 5–17°C | 12–23°C | 19–29°C | 20–29°C | 19–29°C | 16–26°C | 9–19°C | 2–12°C | -3–6°C |
| Feels like | -13–-5°C | -11–0°C | -3–8°C | 1–14°C | 11–22°C | 19–31°C | 21–33°C | 21–32°C | 15–26°C | 6–16°C | -2–8°C | -8–1°C |
| Precipitation | 63mm 9 days | 32mm 5 days | 81mm 9 days | 80mm 8 days | 117mm 11 days | 101mm 7 days | 137mm 7 days | 60mm 5 days | 57mm 5 days | 73mm 6 days | 54mm 6 days | 50mm 6 days |
| Sunshine | 5.0h ☀︎ 52% | 8.0h ☀︎ 75% | 7.7h ☀︎ 64% | 9.2h ☀︎ 69% | 9.7h ☀︎ 67% | 12.2h ☀︎ 81% | 12.1h ☀︎ 82% | 11.6h ☀︎ 84% | 10.4h ☀︎ 84% | 8.4h ☀︎ 76% | 7.2h ☀︎ 73% | 5.7h ☀︎ 61% |
| Wind | W · 22 km/h | W · 23 km/h | W · 24 km/h | W · 26 km/h | SE · 22 km/h | S · 20 km/h | SW · 17 km/h | S · 17 km/h | S · 18 km/h | W · 22 km/h | SW · 23 km/h | SW · 22 km/h |
| Humidity (%) | 79% | 65% | 65% | 62% | 67% | 64% | 73% | 72% | 68% | 62% | 67% | 71% |
| Day length | 9.6h | 10.6h | 12.0h | 13.3h | 14.5h | 15.1h | 14.8h | 13.8h | 12.5h | 11.1h | 9.9h | 9.3h |