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Weather & Climate
Wayne County, Illinois, United States
Overview
Climate data and monthly weather averages for Wayne County.
Key Metrics
Annual Avg
12.9°C
Summer Avg
24.4°C
Winter Avg
0.5°C
Record High
42.9°C
Record Low
-24.7°C
Annual Precipitation
1171.9 mm
Avg Humidity
77%
Summer Humidity
76%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 20.6° | -0.8° | -24.7° | 74.7 | 83% | 63 | 62.9 |
| Feb | 22.6° | 0.8° | -21.8° | 71.7 | 81% | 78 | 62.9 |
| Mar | 26.7° | 6.9° | -15.4° | 106.6 | 79% | 115 | 57.9 |
| Apr | 29.3° | 13.4° | -5.8° | 120.9 | 77% | 151 | 56 |
| May | 31.8° | 18.7° | 0.9° | 125.2 | 79% | 173 | 59.4 |
| Jun | 41.5° | 23.4° | 3.3° | 112.5 | 78% | 194 | 51.5 |
| Jul | 42.9° | 25.2° | 10.5° | 107.9 | 76% | 195 | 34.1 |
| Aug | 40.3° | 24.6° | 10.5° | 85.6 | 73% | 176 | 43.2 |
| Sep | 36.2° | 20.9° | 3.9° | 79.8 | 71% | 142 | 65.6 |
| Oct | 33.4° | 13.8° | -3.7° | 102.3 | 72% | 106 | 53.2 |
| Nov | 26.9° | 6.9° | -10.9° | 94.2 | 77% | 71 | 53.1 |
| Dec | 21.9° | 1.5° | -18.1° | 90.5 | 83% | 54 | 61.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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