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Weather & Climate
Roberts County, South Dakota, United States
Overview
Climate data and monthly weather averages for Roberts County.
Key Metrics
Annual Avg
7.1°C
Summer Avg
21.9°C
Winter Avg
-8.5°C
Record High
42.3°C
Record Low
-40.4°C
Annual Precipitation
618.3 mm
Avg Humidity
71%
Summer Humidity
63%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 9.6° | -10° | -40.4° | 13 | 86% | 59 | 59.3 |
| Feb | 17.4° | -8.5° | -30.9° | 17.4 | 82% | 85 | 62 |
| Mar | 27.1° | -0.4° | -28.8° | 30.1 | 72% | 120 | 64.8 |
| Apr | 31.8° | 6.9° | -14.5° | 57.6 | 65% | 147 | 58.4 |
| May | 36.1° | 14° | -5.3° | 77.5 | 64% | 173 | 60 |
| Jun | 39° | 20.2° | 5° | 100.5 | 66% | 189 | 52.9 |
| Jul | 42.3° | 23.6° | 8.4° | 80.6 | 61% | 204 | 49.9 |
| Aug | 40.1° | 21.8° | 6.4° | 72.2 | 62% | 171 | 53.2 |
| Sep | 36.3° | 16.8° | 0° | 70.8 | 64% | 126 | 61.4 |
| Oct | 31.4° | 7.7° | -16° | 58.9 | 69% | 85 | 68.9 |
| Nov | 22.7° | 0.2° | -20.9° | 18 | 75% | 54 | 59.7 |
| Dec | 11.4° | -7.1° | -30.8° | 21.7 | 85% | 40 | 67.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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