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Weather & Climate
Macomb, Illinois, United States
Overview
Climate data and monthly weather averages for Macomb.
Key Metrics
Annual Avg
11.1°C
Summer Avg
23.8°C
Winter Avg
-2.6°C
Record High
43°C
Record Low
-33.1°C
Annual Precipitation
951.3 mm
Avg Humidity
76%
Summer Humidity
73%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19° | -4° | -33.1° | 42.2 | 83% | 57 | 61.8 |
| Feb | 22.2° | -2.4° | -24.1° | 45.4 | 81% | 78 | 62.2 |
| Mar | 25.9° | 4.5° | -20.5° | 63.5 | 77% | 116 | 65.4 |
| Apr | 29.2° | 11.4° | -7.6° | 97.2 | 74% | 146 | 58.9 |
| May | 34.2° | 17.3° | -0.1° | 119 | 76% | 174 | 60.7 |
| Jun | 42° | 22.6° | 6.5° | 121.2 | 76% | 189 | 47.7 |
| Jul | 43° | 24.9° | 10.3° | 91.8 | 72% | 197 | 37.4 |
| Aug | 41.2° | 23.9° | 8° | 95.5 | 70% | 172 | 36.5 |
| Sep | 39.4° | 19.7° | 1.6° | 85.5 | 70% | 140 | 43.8 |
| Oct | 34.1° | 12° | -6.7° | 79.7 | 72% | 98 | 54.5 |
| Nov | 25° | 5° | -12.8° | 56.7 | 77% | 65 | 58.3 |
| Dec | 21.9° | -1.3° | -22.6° | 53.6 | 83% | 50 | 70.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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