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Weather & Climate
Clarke County, Iowa, United States
Overview
Climate data and monthly weather averages for Clarke County.
Key Metrics
Annual Avg
10.3°C
Summer Avg
23.5°C
Winter Avg
-3.7°C
Record High
42.8°C
Record Low
-35°C
Annual Precipitation
918.4 mm
Avg Humidity
76%
Summer Humidity
72%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.9° | -5.1° | -35° | 24.5 | 83% | 61 | 62.6 |
| Feb | 21.6° | -3.5° | -24.5° | 30.8 | 80% | 84 | 59 |
| Mar | 25.8° | 3.8° | -22.9° | 52.4 | 76% | 118 | 63.4 |
| Apr | 30.5° | 10.6° | -8.7° | 93.9 | 72% | 145 | 57.8 |
| May | 35.5° | 16.5° | -1.6° | 125.5 | 75% | 175 | 53.8 |
| Jun | 38.9° | 22.3° | 4.9° | 130.8 | 75% | 189 | 47.4 |
| Jul | 42.8° | 24.8° | 9.9° | 96.7 | 71% | 198 | 39.2 |
| Aug | 41.3° | 23.4° | 7.4° | 115.3 | 70% | 172 | 41.1 |
| Sep | 38.5° | 18.9° | 2.2° | 88.8 | 71% | 137 | 51.4 |
| Oct | 32.2° | 11° | -5.9° | 74.4 | 72% | 97 | 56.3 |
| Nov | 24.1° | 4° | -13.9° | 45 | 77% | 65 | 57.4 |
| Dec | 20.8° | -2.5° | -24.3° | 40.3 | 84% | 52 | 65 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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