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Weather & Climate
Wilton, Iowa, United States
Overview
Climate data and monthly weather averages for Wilton.
Key Metrics
Annual Avg
10.1°C
Summer Avg
23.2°C
Winter Avg
-4°C
Record High
43.1°C
Record Low
-35.9°C
Annual Precipitation
903.7 mm
Avg Humidity
76%
Summer Humidity
73%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 16.7° | -5.6° | -35.9° | 29.1 | 84% | 57 | 60.8 |
| Feb | 21.9° | -3.8° | -26.1° | 36.7 | 82% | 80 | 61.5 |
| Mar | 25.8° | 3.3° | -22.6° | 56.7 | 77% | 117 | 62 |
| Apr | 29° | 10.3° | -8.6° | 89.4 | 73% | 144 | 61.3 |
| May | 34.7° | 16.5° | -2.3° | 111.3 | 75% | 174 | 54.9 |
| Jun | 38.6° | 22.1° | 6.1° | 130.2 | 75% | 187 | 48.2 |
| Jul | 43.1° | 24.3° | 9.1° | 94.2 | 73% | 196 | 44 |
| Aug | 39.6° | 23.3° | 7° | 102.6 | 70% | 172 | 35 |
| Sep | 40.2° | 18.9° | 1.4° | 84.9 | 71% | 137 | 50.8 |
| Oct | 33.9° | 11° | -5.2° | 74.1 | 73% | 95 | 54.1 |
| Nov | 24.3° | 3.9° | -14.3° | 48.3 | 78% | 63 | 57.8 |
| Dec | 21.5° | -2.7° | -26.6° | 46.2 | 85% | 48 | 69.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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