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Weather & Climate
Harper County, Oklahoma, United States
Overview
Climate data and monthly weather averages for Harper County.
Key Metrics
Annual Avg
14.9°C
Summer Avg
27.6°C
Winter Avg
2.1°C
Record High
47.2°C
Record Low
-18.7°C
Annual Precipitation
682 mm
Avg Humidity
60%
Summer Humidity
56%
Winter Humidity
66%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 24.8° | 1.4° | -18.7° | 21.7 | 66% | 88 | 62.2 |
| Feb | 28.4° | 2.9° | -16.5° | 24.9 | 64% | 100 | 58.7 |
| Mar | 34.2° | 9.2° | -15.3° | 41.5 | 60% | 148 | 69.9 |
| Apr | 37.4° | 14.6° | -6.1° | 64.5 | 56% | 177 | 67.2 |
| May | 40.6° | 20.4° | 0.7° | 91.8 | 59% | 204 | 61.1 |
| Jun | 47.2° | 26.3° | 9.1° | 103.8 | 58% | 218 | 58.7 |
| Jul | 46.2° | 29° | 14° | 78.7 | 53% | 220 | 44.1 |
| Aug | 45.2° | 27.5° | 12.7° | 89.6 | 57% | 195 | 44.8 |
| Sep | 42.7° | 22.9° | 6.1° | 50.4 | 56% | 159 | 50.4 |
| Oct | 36.7° | 14.9° | -6.3° | 63.5 | 59% | 125 | 53.1 |
| Nov | 31° | 8° | -8.2° | 22.8 | 62% | 92 | 62.2 |
| Dec | 23.6° | 1.9° | -15.8° | 28.8 | 67% | 78 | 58.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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