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Weather & Climate
Greenfield, Illinois, United States
Overview
Climate data and monthly weather averages for Greenfield.
Key Metrics
Annual Avg
12°C
Summer Avg
24.1°C
Winter Avg
-1.1°C
Record High
42.6°C
Record Low
-25.9°C
Annual Precipitation
1033.3 mm
Avg Humidity
77%
Summer Humidity
74%
Winter Humidity
82%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19.7° | -2.6° | -25.9° | 57 | 83% | 62 | 59.7 |
| Feb | 22.7° | -0.9° | -24.4° | 55.4 | 81% | 77 | 68.7 |
| Mar | 26.1° | 5.7° | -17.7° | 75.3 | 78% | 116 | 60.4 |
| Apr | 29.7° | 12.4° | -6.8° | 108.9 | 75% | 148 | 56.7 |
| May | 32.8° | 18° | 0.3° | 123.1 | 77% | 173 | 61.4 |
| Jun | 41.4° | 23° | 5.8° | 115.5 | 77% | 190 | 49.3 |
| Jul | 42.6° | 25.1° | 9.7° | 99.2 | 74% | 197 | 35.8 |
| Aug | 40.5° | 24.2° | 9.4° | 93 | 72% | 173 | 34.8 |
| Sep | 39.5° | 20.3° | 2.1° | 78.9 | 70% | 142 | 49.1 |
| Oct | 33.9° | 12.9° | -5.2° | 89.3 | 72% | 103 | 52.2 |
| Nov | 26.7° | 6° | -12.6° | 71.4 | 77% | 69 | 57.2 |
| Dec | 22.1° | 0.1° | -24.3° | 66.3 | 82% | 53 | 70.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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