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Weather & Climate
Clear Lake, South Dakota, United States
Overview
Climate data and monthly weather averages for Clear Lake.
Key Metrics
Annual Avg
7.2°C
Summer Avg
21.6°C
Winter Avg
-7.9°C
Record High
41.5°C
Record Low
-41°C
Annual Precipitation
637.5 mm
Avg Humidity
72%
Summer Humidity
65%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 9.1° | -9.3° | -41° | 12.1 | 86% | 61 | 57.5 |
| Feb | 17.7° | -7.8° | -31.9° | 17.1 | 81% | 86 | 74.4 |
| Mar | 27.1° | 0° | -30.5° | 31.9 | 73% | 117 | 60.8 |
| Apr | 31° | 7.1° | -14.3° | 59.4 | 66% | 146 | 62.2 |
| May | 34.6° | 13.9° | -5.1° | 84 | 65% | 174 | 58.9 |
| Jun | 38.2° | 20° | 5.1° | 102.9 | 68% | 188 | 50.6 |
| Jul | 41.5° | 23.4° | 8° | 80 | 63% | 206 | 45.3 |
| Aug | 38.8° | 21.4° | 5.5° | 80.3 | 64% | 171 | 49.5 |
| Sep | 35.6° | 16.7° | -0.1° | 76.5 | 65% | 128 | 56.8 |
| Oct | 29.7° | 7.7° | -14° | 53.9 | 69% | 90 | 63.4 |
| Nov | 22.6° | 0.4° | -20.2° | 18.9 | 75% | 58 | 59.7 |
| Dec | 11.7° | -6.7° | -29° | 20.5 | 85% | 45 | 67.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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