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Weather & Climate
Webster, South Dakota, United States
Overview
Climate data and monthly weather averages for Webster.
Key Metrics
Annual Avg
6.5°C
Summer Avg
21.2°C
Winter Avg
-9°C
Record High
42.4°C
Record Low
-42°C
Annual Precipitation
626.9 mm
Avg Humidity
72%
Summer Humidity
64%
Winter Humidity
86%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 9.2° | -10.5° | -42° | 13.3 | 88% | 59 | 57 |
| Feb | 18.1° | -9° | -33.1° | 17.4 | 84% | 85 | 64 |
| Mar | 26.4° | -1° | -29.5° | 29.1 | 74% | 120 | 64.8 |
| Apr | 30.4° | 6.3° | -15.6° | 55.2 | 66% | 147 | 59.9 |
| May | 35.1° | 13.2° | -5.6° | 83.1 | 65% | 173 | 57.3 |
| Jun | 39.2° | 19.4° | 3.7° | 102.9 | 67% | 189 | 53.3 |
| Jul | 42.4° | 22.9° | 7.1° | 83.4 | 62% | 204 | 50.3 |
| Aug | 40.4° | 21.2° | 6.6° | 72.2 | 62% | 171 | 52 |
| Sep | 36.1° | 16.1° | -1.3° | 70.2 | 64% | 126 | 56.5 |
| Oct | 30.4° | 7° | -16.8° | 60.4 | 70% | 85 | 64.8 |
| Nov | 21.7° | -0.4° | -21.6° | 17.4 | 76% | 54 | 58.6 |
| Dec | 10.5° | -7.6° | -30.7° | 22.3 | 87% | 40 | 63.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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