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Weather & Climate
Vermillion, South Dakota, United States
Overview
Climate data and monthly weather averages for Vermillion.
Key Metrics
Annual Avg
9.3°C
Summer Avg
23.4°C
Winter Avg
-5.4°C
Record High
44.9°C
Record Low
-34.6°C
Annual Precipitation
703.5 mm
Avg Humidity
70%
Summer Humidity
64%
Winter Humidity
81%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.4° | -6.7° | -34.6° | 14.3 | 82% | 62 | 64.5 |
| Feb | 21.9° | -5.1° | -27.4° | 19 | 78% | 87 | 61 |
| Mar | 29.8° | 2.3° | -27° | 37.8 | 71% | 119 | 64.2 |
| Apr | 33.2° | 9.1° | -11.8° | 75.9 | 66% | 149 | 67.9 |
| May | 35.1° | 15.6° | -4.6° | 94.9 | 66% | 179 | 53.9 |
| Jun | 40.6° | 21.8° | 5.9° | 109.8 | 68% | 194 | 52.1 |
| Jul | 44.9° | 25.1° | 9.4° | 76 | 62% | 206 | 43.7 |
| Aug | 42.3° | 23.3° | 7.8° | 83.1 | 63% | 174 | 48.9 |
| Sep | 38.4° | 18.6° | 2.3° | 81.6 | 63% | 134 | 48.2 |
| Oct | 32.4° | 9.6° | -13.4° | 60.8 | 68% | 98 | 62.1 |
| Nov | 25.5° | 2.3° | -15° | 25.8 | 73% | 66 | 60.2 |
| Dec | 14.4° | -4.5° | -26.1° | 24.5 | 82% | 51 | 65 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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