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Weather & Climate
Lacon, Illinois, United States
Overview
Climate data and monthly weather averages for Lacon.
Key Metrics
Annual Avg
10.5°C
Summer Avg
23.1°C
Winter Avg
-3.1°C
Record High
41.7°C
Record Low
-35.5°C
Annual Precipitation
965.3 mm
Avg Humidity
77%
Summer Humidity
74%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.6° | -4.6° | -35.5° | 49 | 85% | 56 | 58.5 |
| Feb | 19.8° | -2.9° | -27.2° | 48.7 | 82% | 77 | 61.9 |
| Mar | 26.7° | 3.8° | -23.9° | 65.4 | 78% | 115 | 64.5 |
| Apr | 28.7° | 10.7° | -7.2° | 97.2 | 74% | 143 | 61.5 |
| May | 33.9° | 16.7° | -2.1° | 115.9 | 76% | 171 | 59.1 |
| Jun | 40.8° | 21.9° | 4.5° | 109.5 | 76% | 186 | 50.9 |
| Jul | 41.7° | 24.1° | 9.1° | 96.1 | 75% | 195 | 41.5 |
| Aug | 40° | 23.2° | 7.5° | 97.3 | 72% | 170 | 35.6 |
| Sep | 37.4° | 19.2° | 2.1° | 86.7 | 72% | 136 | 42.4 |
| Oct | 31.7° | 11.5° | -9.5° | 82.8 | 73% | 94 | 53.2 |
| Nov | 24.2° | 4.5° | -13.2° | 59.7 | 78% | 61 | 59 |
| Dec | 20.9° | -1.8° | -23.8° | 57 | 85% | 47 | 69.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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