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Weather & Climate
Sioux County, North Dakota, United States
Overview
Climate data and monthly weather averages for Sioux County.
Key Metrics
Annual Avg
7.6°C
Summer Avg
22.2°C
Winter Avg
-6.6°C
Record High
44°C
Record Low
-32.5°C
Annual Precipitation
457.1 mm
Avg Humidity
66%
Summer Humidity
56%
Winter Humidity
80%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13° | -7.4° | -32.5° | 10.5 | 82% | 56 | 68.5 |
| Feb | 20.3° | -6.5° | -28.8° | 13.7 | 76% | 81 | 77.3 |
| Mar | 26.9° | 0.4° | -27.4° | 23.3 | 69% | 118 | 67.6 |
| Apr | 31.8° | 6.8° | -15.2° | 40.2 | 61% | 149 | 68 |
| May | 36.6° | 13.6° | -4.5° | 71.9 | 59% | 180 | 57.8 |
| Jun | 44° | 20.1° | 1.7° | 78 | 58% | 196 | 61.7 |
| Jul | 43.8° | 24.3° | 8.5° | 61.7 | 54% | 209 | 53.2 |
| Aug | 41.6° | 22.1° | 7.9° | 53.6 | 56% | 174 | 61.7 |
| Sep | 39.1° | 16.4° | -0.2° | 42.6 | 59% | 129 | 64 |
| Oct | 33.5° | 7.3° | -14.6° | 35.3 | 66% | 85 | 68.5 |
| Nov | 22.6° | 0.3° | -19° | 11.7 | 72% | 53 | 74.4 |
| Dec | 12.4° | -5.8° | -29.9° | 14.6 | 81% | 40 | 61.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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