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Weather & Climate
Duluth, Minnesota, United States
Overview
Climate data and monthly weather averages for Duluth.
Key Metrics
Annual Avg
4.4°C
Summer Avg
17.9°C
Winter Avg
-10.3°C
Record High
36.3°C
Record Low
-36.4°C
Annual Precipitation
780.2 mm
Avg Humidity
82%
Summer Humidity
75%
Winter Humidity
94%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 5° | -12° | -34° | 22.6 | 95% | 49 | 51.2 |
| Feb | 6.2° | -10.7° | -33° | 26.3 | 93% | 76 | 58.7 |
| Mar | 20.8° | -3.3° | -36.4° | 41.2 | 85% | 118 | 58.2 |
| Apr | 23.9° | 3.5° | -13.9° | 71.7 | 77% | 141 | 57.8 |
| May | 28.1° | 9.5° | -4.5° | 91.1 | 77% | 166 | 48.2 |
| Jun | 30.2° | 15° | 1.3° | 104.1 | 79% | 178 | 47 |
| Jul | 36.3° | 19.6° | 5.8° | 88.7 | 74% | 192 | 47.1 |
| Aug | 33° | 19.1° | 5.6° | 89.6 | 72% | 161 | 47.6 |
| Sep | 30.7° | 14.5° | -1.1° | 81.6 | 75% | 115 | 49.6 |
| Oct | 24.1° | 6.4° | -9.1° | 81.2 | 80% | 75 | 59.8 |
| Nov | 18.1° | -0.8° | -20.5° | 40.2 | 85% | 46 | 53.6 |
| Dec | 8.9° | -8.1° | -32.8° | 41.9 | 93% | 35 | 54.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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