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Weather & Climate
Chatham, Ontario, Canada
Overview
Climate data and monthly weather averages for Chatham.
Key Metrics
Annual Avg
9.6°C
Summer Avg
21.5°C
Winter Avg
-2.4°C
Record High
34.4°C
Record Low
-27.9°C
Annual Precipitation
675.9 mm
Avg Humidity
78%
Summer Humidity
73%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.9° | -3.7° | -22.5° | 41.2 | 85% | 43 | 68.9 |
| Feb | 15.7° | -3.5° | -27.9° | 38.9 | 84% | 63 | 65.6 |
| Mar | 25° | 1° | -18.9° | 46.2 | 79% | 107 | 72.3 |
| Apr | 24° | 7.2° | -8° | 54.9 | 75% | 141 | 70.3 |
| May | 30.5° | 13.6° | -2° | 70.4 | 75% | 171 | 63.4 |
| Jun | 32.5° | 19.4° | 3.9° | 70.5 | 74% | 188 | 53.4 |
| Jul | 34.2° | 22.8° | 9.2° | 71.9 | 72% | 193 | 44.4 |
| Aug | 34.4° | 22.4° | 11.4° | 59.2 | 72% | 166 | 49.9 |
| Sep | 32.5° | 18.8° | 4.9° | 67.8 | 74% | 129 | 49.8 |
| Oct | 30.2° | 11.9° | -0.3° | 56.1 | 77% | 87 | 67.9 |
| Nov | 21.6° | 5.5° | -8.7° | 50.4 | 80% | 53 | 70.8 |
| Dec | 15.9° | -0.1° | -17.6° | 48.4 | 84% | 39 | 73.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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