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Weather & Climate
Napoleon, North Dakota, United States
Overview
Climate data and monthly weather averages for Napoleon.
Key Metrics
Annual Avg
6.4°C
Summer Avg
21.2°C
Winter Avg
-8.7°C
Record High
42.8°C
Record Low
-39.3°C
Annual Precipitation
512.8 mm
Avg Humidity
69%
Summer Humidity
59%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 9.9° | -9.9° | -39.3° | 13.6 | 87% | 58 | 63.7 |
| Feb | 15.8° | -8.7° | -35.5° | 14 | 82% | 85 | 74.1 |
| Mar | 25.4° | -0.9° | -27.8° | 25.1 | 72% | 125 | 68.3 |
| Apr | 31.8° | 6° | -16.8° | 39.3 | 63% | 150 | 58.2 |
| May | 33.5° | 12.9° | -5° | 76 | 62% | 178 | 59.7 |
| Jun | 42.4° | 19.1° | 2.3° | 90.9 | 62% | 191 | 53.8 |
| Jul | 42.8° | 23.2° | 7.4° | 68.5 | 57% | 206 | 52.4 |
| Aug | 39.8° | 21.4° | 6.5° | 58.9 | 57% | 171 | 57.5 |
| Sep | 38° | 15.8° | -1.3° | 51.9 | 60% | 125 | 58 |
| Oct | 31.6° | 6.5° | -13.5° | 41.2 | 67% | 83 | 66.7 |
| Nov | 21.4° | -0.7° | -21.1° | 13.2 | 75% | 52 | 68.5 |
| Dec | 9.3° | -7.6° | -32° | 20.2 | 85% | 41 | 60.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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