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Weather & Climate
Jerome, Illinois, United States
Overview
Climate data and monthly weather averages for Jerome.
Key Metrics
Annual Avg
11.5°C
Summer Avg
23.7°C
Winter Avg
-1.7°C
Record High
42.4°C
Record Low
-28°C
Annual Precipitation
1000.8 mm
Avg Humidity
77%
Summer Humidity
75%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19° | -3.2° | -28° | 55.2 | 83% | 60 | 61.4 |
| Feb | 21.4° | -1.5° | -24.9° | 53.8 | 82% | 77 | 63.1 |
| Mar | 26.8° | 5° | -19.9° | 70.4 | 78% | 115 | 62.5 |
| Apr | 28.9° | 11.9° | -6.8° | 102.6 | 75% | 149 | 60.1 |
| May | 33° | 17.6° | -0.7° | 116.9 | 77% | 173 | 57.4 |
| Jun | 41.9° | 22.6° | 4.7° | 113.7 | 77% | 192 | 51.2 |
| Jul | 42.4° | 24.6° | 9.6° | 100.1 | 75% | 198 | 37.3 |
| Aug | 39.5° | 23.8° | 8.6° | 86.5 | 72% | 175 | 32.3 |
| Sep | 39.6° | 20° | 2.3° | 79.5 | 70% | 142 | 48 |
| Oct | 33.1° | 12.5° | -6.3° | 90.2 | 72% | 102 | 54.1 |
| Nov | 26.2° | 5.5° | -12.3° | 68.4 | 77% | 68 | 58.8 |
| Dec | 21.4° | -0.5° | -25.7° | 63.5 | 83% | 51 | 70.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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