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Weather & Climate
Macon, Illinois, United States
Overview
Climate data and monthly weather averages for Macon.
Key Metrics
Annual Avg
11.8°C
Summer Avg
23.6°C
Winter Avg
-1.1°C
Record High
42.4°C
Record Low
-25.9°C
Annual Precipitation
1072 mm
Avg Humidity
77%
Summer Humidity
76%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19.6° | -2.5° | -25.9° | 64.2 | 84% | 58 | 62.3 |
| Feb | 20.9° | -0.9° | -24.6° | 61 | 82% | 75 | 66 |
| Mar | 26.3° | 5.5° | -16.7° | 78.4 | 79% | 114 | 63.4 |
| Apr | 29.1° | 12.2° | -6.6° | 113.1 | 76% | 148 | 60.6 |
| May | 32.7° | 17.8° | -0.9° | 119.7 | 78% | 172 | 59.4 |
| Jun | 40.7° | 22.6° | 3.3° | 122.4 | 78% | 192 | 54.6 |
| Jul | 42.4° | 24.5° | 9.3° | 103.2 | 76% | 195 | 34.7 |
| Aug | 39.8° | 23.8° | 9.2° | 82.8 | 73% | 174 | 44.1 |
| Sep | 37.7° | 20.1° | 2.8° | 75 | 71% | 140 | 55.2 |
| Oct | 32.7° | 12.8° | -4.2° | 98.9 | 72% | 101 | 55 |
| Nov | 26.1° | 5.8° | -13.4° | 79.8 | 77% | 67 | 62.1 |
| Dec | 20.9° | 0.1° | -19.8° | 73.5 | 83% | 49 | 69.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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