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Weather & Climate
Anna, Illinois, United States
Overview
Climate data and monthly weather averages for Anna.
Key Metrics
Annual Avg
13.7°C
Summer Avg
25°C
Winter Avg
1.5°C
Record High
42.4°C
Record Low
-19.1°C
Annual Precipitation
1214.2 mm
Avg Humidity
77%
Summer Humidity
75%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 21.4° | 0.2° | -19° | 78.1 | 82% | 68 | 54.1 |
| Feb | 22.9° | 1.9° | -18.9° | 86 | 82% | 80 | 52.7 |
| Mar | 26.3° | 7.9° | -14.2° | 117.5 | 80% | 119 | 47.6 |
| Apr | 29.5° | 14° | -5.6° | 132.9 | 78% | 154 | 46.6 |
| May | 31.8° | 19.1° | 1.9° | 130.2 | 80% | 178 | 42 |
| Jun | 42.4° | 23.9° | 7.3° | 96 | 78% | 197 | 42.3 |
| Jul | 42.2° | 25.7° | 11.8° | 107 | 76% | 195 | 28.1 |
| Aug | 40.6° | 25.4° | 10.2° | 84 | 71% | 176 | 32.2 |
| Sep | 37.8° | 21.6° | 4.2° | 78 | 69% | 143 | 52.6 |
| Oct | 33.5° | 14.5° | -3.9° | 101.7 | 72% | 110 | 43.1 |
| Nov | 26.7° | 7.6° | -10.3° | 101.4 | 77% | 75 | 46.5 |
| Dec | 22.2° | 2.4° | -19.1° | 101.4 | 83% | 58 | 45.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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