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Weather & Climate
Oglala Lakota County, South Dakota, United States
Overview
Climate data and monthly weather averages for Oglala Lakota County.
Key Metrics
Annual Avg
10.3°C
Summer Avg
24°C
Winter Avg
-2.3°C
Record High
45.5°C
Record Low
-28.9°C
Annual Precipitation
439.9 mm
Avg Humidity
60%
Summer Humidity
51%
Winter Humidity
70%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19.4° | -2.6° | -25.4° | 9.3 | 71% | 63 | 62.7 |
| Feb | 23.6° | -2.1° | -21.1° | 12 | 67% | 82 | 70.1 |
| Mar | 28.1° | 3.8° | -21.7° | 25.7 | 61% | 127 | 65.6 |
| Apr | 33.1° | 8.9° | -12.6° | 53.4 | 58% | 155 | 60.9 |
| May | 37.5° | 14.9° | -4.9° | 78.4 | 56% | 189 | 59.8 |
| Jun | 43.5° | 21.7° | 3.8° | 69.6 | 53% | 210 | 60.6 |
| Jul | 45.5° | 26.2° | 9.7° | 50.2 | 49% | 220 | 53.1 |
| Aug | 43.1° | 24° | 6.4° | 48.7 | 51% | 189 | 58 |
| Sep | 40.5° | 18.4° | 0.2° | 36 | 53% | 144 | 49.3 |
| Oct | 33.3° | 9.4° | -13° | 32.2 | 60% | 99 | 62.9 |
| Nov | 26.7° | 3° | -15.6° | 13.2 | 64% | 67 | 60.3 |
| Dec | 19.2° | -2.3° | -28.9° | 11.2 | 71% | 53 | 60.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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