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Weather & Climate
Port Stanley, Ontario, Canada
Overview
Climate data and monthly weather averages for Port Stanley.
Key Metrics
Annual Avg
9.6°C
Summer Avg
21.1°C
Winter Avg
-1.6°C
Record High
30.1°C
Record Low
-23°C
Annual Precipitation
758.4 mm
Avg Humidity
80%
Summer Humidity
76%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10° | -2.8° | -20.5° | 43.7 | 86% | 47 | 69.6 |
| Feb | 9.8° | -3.3° | -23° | 40 | 85% | 56 | 71.3 |
| Mar | 15.7° | 0.2° | -17.1° | 50.5 | 82% | 106 | 74.3 |
| Apr | 17.2° | 5.8° | -5.7° | 59.7 | 80% | 139 | 74.7 |
| May | 26.1° | 11.9° | -0.1° | 76.6 | 80% | 174 | 63.2 |
| Jun | 27.2° | 18.3° | 5.5° | 80.1 | 79% | 190 | 54.4 |
| Jul | 30.1° | 22.4° | 12.1° | 83.4 | 75% | 195 | 45.5 |
| Aug | 29.4° | 22.5° | 13.9° | 62.6 | 73% | 171 | 52.2 |
| Sep | 28.1° | 19.2° | 6.5° | 82.8 | 75% | 130 | 56.7 |
| Oct | 26.2° | 12.9° | 2° | 72.9 | 77% | 84 | 72.1 |
| Nov | 17.9° | 6.8° | -5.7° | 54.6 | 80% | 51 | 77.3 |
| Dec | 13.2° | 1.4° | -12.1° | 51.5 | 83% | 36 | 77.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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