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Weather & Climate
Ontonagon County, Michigan, United States
Overview
Climate data and monthly weather averages for Ontonagon County.
Key Metrics
Annual Avg
5.5°C
Summer Avg
15.5°C
Winter Avg
-5.1°C
Record High
30.3°C
Record Low
-22.7°C
Annual Precipitation
864.3 mm
Avg Humidity
83%
Summer Humidity
83%
Winter Humidity
89%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 5.2° | -5.9° | -21.4° | 47.1 | 91% | 39 | 52.4 |
| Feb | 6.8° | -6.4° | -22.7° | 39.5 | 89% | 62 | 59.8 |
| Mar | 18.1° | -2° | -21.8° | 44 | 84% | 110 | 56.1 |
| Apr | 19.1° | 3.1° | -9.7° | 76.5 | 79% | 136 | 46.7 |
| May | 24.4° | 7.8° | -3° | 93 | 81% | 169 | 47.5 |
| Jun | 23.9° | 12° | 2° | 94.8 | 85% | 180 | 44.3 |
| Jul | 30.3° | 16.4° | 5° | 88.7 | 84% | 191 | 36.9 |
| Aug | 27.7° | 18.1° | 9.3° | 78.7 | 81% | 158 | 43.5 |
| Sep | 27.5° | 14.9° | 4.2° | 87.9 | 79% | 114 | 51.9 |
| Oct | 22° | 8.1° | -1.6° | 91.1 | 79% | 71 | 52.2 |
| Nov | 16.4° | 2.4° | -10.8° | 59.1 | 81% | 39 | 52.4 |
| Dec | 10.6° | -2.9° | -16.3° | 63.9 | 88% | 29 | 64.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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