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Weather & Climate
North Slope Borough, Alaska, United States
Overview
Climate data and monthly weather averages for North Slope Borough.
Key Metrics
Annual Avg
-8.6°C
Summer Avg
9.4°C
Winter Avg
-24.5°C
Record High
26.5°C
Record Low
-50.6°C
Annual Precipitation
409.6 mm
Avg Humidity
92%
Summer Humidity
84%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 2.1° | -25.9° | -48.4° | 17.1 | 95% | 0 | 66.9 |
| Feb | 0° | -24° | -50.6° | 19.3 | 95% | 14 | 69.9 |
| Mar | 1.5° | -21.8° | -45.3° | 16.4 | 95% | 69 | 55.3 |
| Apr | 3.3° | -11.8° | -34.1° | 21.6 | 94% | 140 | 55.3 |
| May | 18.6° | -0.8° | -25.8° | 33.5 | 91% | 183 | 40.9 |
| Jun | 25.5° | 8.9° | -4.5° | 40.8 | 83% | 167 | 37.8 |
| Jul | 26.5° | 11.5° | -0.9° | 65.4 | 82% | 149 | 45.3 |
| Aug | 25.2° | 7.7° | -3.5° | 70.4 | 87% | 94 | 49.7 |
| Sep | 16.8° | 1.8° | -14.5° | 48.9 | 91% | 50 | 41.1 |
| Oct | 7.2° | -7.7° | -26.8° | 32.9 | 95% | 18 | 44.9 |
| Nov | 0.9° | -18.3° | -39.1° | 22.8 | 95% | 2 | 59.9 |
| Dec | 1.6° | -23.5° | -43.5° | 20.5 | 95% | 0 | 65.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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