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Weather & Climate
Winchester, Ontario, Canada
Overview
Climate data and monthly weather averages for Winchester.
Key Metrics
Annual Avg
6.8°C
Summer Avg
19.9°C
Winter Avg
-7.5°C
Record High
37.4°C
Record Low
-35.8°C
Annual Precipitation
871.7 mm
Avg Humidity
81%
Summer Humidity
77%
Winter Humidity
90%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 15.1° | -9.3° | -34.1° | 51.1 | 91% | 45 | 40.1 |
| Feb | 13.8° | -8.2° | -35.8° | 46.8 | 90% | 68 | 37.3 |
| Mar | 25.7° | -2° | -29° | 52.4 | 82% | 113 | 38.9 |
| Apr | 26.9° | 5.7° | -11.5° | 72.9 | 76% | 136 | 34.2 |
| May | 32.5° | 13° | -3.9° | 77.5 | 76% | 166 | 25.2 |
| Jun | 33.5° | 18.1° | 0.5° | 99.6 | 78% | 174 | 19.2 |
| Jul | 37.4° | 21.1° | 6.7° | 90.5 | 77% | 183 | 16.4 |
| Aug | 36.1° | 20.4° | 6.8° | 78.4 | 75% | 159 | 18.8 |
| Sep | 33.9° | 16.4° | -0.9° | 78.6 | 75% | 119 | 24.7 |
| Oct | 27.2° | 8.9° | -6.4° | 93.3 | 79% | 73 | 23.6 |
| Nov | 21.6° | 2.1° | -21.5° | 63.6 | 83% | 44 | 30 |
| Dec | 18.1° | -5° | -30.9° | 67 | 89% | 32 | 36.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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