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Weather & Climate
Greenstone, Ontario, Canada
Overview
Available climate summaries for Greenstone. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
0.8°C
Summer Avg
15.2°C
Winter Avg
-15.4°C
Record High
31.6°C
Record Low
-45.7°C
Annual Precipitation
815.9 mm
Avg Humidity
87%
Summer Humidity
80%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 0.1° | -17.3° | -45.7° | 39.1 | 95% | 36 | 27.6 |
| Feb | 0.1° | -15.7° | -39.2° | 30.5 | 95% | 61 | 26.3 |
| Mar | 17.1° | -8.5° | -35.5° | 43.7 | 95% | 110 | 25.6 |
| Apr | 21° | 0.3° | -25.9° | 58.2 | 82% | 143 | 25.7 |
| May | 26.4° | 7.9° | -7° | 81.2 | 77% | 164 | 27.1 |
| Jun | 29.3° | 13.6° | -1.1° | 96.6 | 79% | 175 | 23.4 |
| Jul | 31.6° | 16.3° | 3.6° | 91.1 | 81% | 178 | 19.2 |
| Aug | 30.5° | 15.7° | 3.2° | 78.1 | 81% | 148 | 23 |
| Sep | 28.6° | 11.3° | -3.5° | 103.2 | 83% | 100 | 23.4 |
| Oct | 23.2° | 3.4° | -15.1° | 86.5 | 87% | 61 | 27.1 |
| Nov | 15° | -4.2° | -34.1° | 60.3 | 90% | 31 | 26 |
| Dec | 4.4° | -13.1° | -43.1° | 47.4 | 95% | 26 | 27.6 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
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