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Weather & Climate
Grand Marais, Minnesota, United States
Overview
Climate data and monthly weather averages for Grand Marais.
Key Metrics
Annual Avg
3.2°C
Summer Avg
17.1°C
Winter Avg
-12.1°C
Record High
34.6°C
Record Low
-38.5°C
Annual Precipitation
724.2 mm
Avg Humidity
82%
Summer Humidity
74%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 2.6° | -13.7° | -38.5° | 27 | 95% | 38 | 37.4 |
| Feb | 5.4° | -12.6° | -36° | 23.8 | 95% | 59 | 43.5 |
| Mar | 21.2° | -4.9° | -32.6° | 33.5 | 86% | 102 | 40.9 |
| Apr | 21.8° | 2.6° | -13.9° | 62.4 | 74% | 139 | 37.6 |
| May | 27.4° | 9.2° | -6° | 82.5 | 73% | 167 | 38.3 |
| Jun | 30.7° | 14.8° | -1° | 97.8 | 75% | 176 | 31.9 |
| Jul | 34.5° | 18.6° | 5.3° | 84.3 | 73% | 188 | 35.9 |
| Aug | 34.6° | 17.9° | 3.6° | 75 | 73% | 159 | 36.3 |
| Sep | 31.4° | 13.2° | -2.7° | 81.3 | 76% | 112 | 39.7 |
| Oct | 25.2° | 5.1° | -9.9° | 75 | 81% | 71 | 37.5 |
| Nov | 18.1° | -2.2° | -22.1° | 43.8 | 85% | 39 | 40.8 |
| Dec | 4.7° | -9.9° | -33.4° | 37.8 | 94% | 30 | 40.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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