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Weather & Climate
Aviston, Illinois, United States
Overview
Climate data and monthly weather averages for Aviston.
Key Metrics
Annual Avg
12.9°C
Summer Avg
24.6°C
Winter Avg
0.4°C
Record High
42.4°C
Record Low
-22.2°C
Annual Precipitation
1125.4 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 | 20.4° | -1° | -22.2° | 66.3 | 82% | 64 | 60.2 |
| Feb | 22.6° | 0.7° | -21.6° | 65.8 | 81% | 79 | 61.8 |
| Mar | 26° | 6.9° | -14.6° | 97.3 | 79% | 117 | 58.5 |
| Apr | 29.3° | 13.3° | -6.1° | 120.3 | 76% | 151 | 56.1 |
| May | 32.3° | 18.7° | 1.1° | 127.7 | 79% | 174 | 61.6 |
| Jun | 41.7° | 23.6° | 5.7° | 110.4 | 77% | 194 | 51.6 |
| Jul | 42.4° | 25.4° | 11.6° | 102.3 | 75% | 196 | 31.9 |
| Aug | 39.4° | 24.8° | 10° | 90.5 | 72% | 177 | 40.1 |
| Sep | 36.3° | 20.9° | 3.4° | 77.1 | 70% | 143 | 56.2 |
| Oct | 33.3° | 13.8° | -3.8° | 99.5 | 72% | 106 | 51.6 |
| Nov | 27° | 6.9° | -10.9° | 88.5 | 76% | 72 | 55.5 |
| Dec | 21.3° | 1.4° | -17.4° | 79.7 | 82% | 55 | 63.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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