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Weather & Climate
Girdwood, Alaska, United States
Overview
Climate data and monthly weather averages for Girdwood.
Key Metrics
Annual Avg
-0.2°C
Summer Avg
10.3°C
Winter Avg
-8.7°C
Record High
25.4°C
Record Low
-31.9°C
Annual Precipitation
1190.8 mm
Avg Humidity
88%
Summer Humidity
84%
Winter Humidity
92%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 2.8° | -9.6° | -29.5° | 80.3 | 92% | 9 | 69.3 |
| Feb | 2.2° | -8.2° | -27.2° | 75.3 | 91% | 25 | 65.5 |
| Mar | 2.6° | -7.5° | -31.9° | 64.5 | 88% | 71 | 57.9 |
| Apr | 10.7° | -2° | -19.1° | 64.2 | 87% | 107 | 59.2 |
| May | 17.9° | 3.9° | -9.5° | 68.5 | 84% | 143 | 50.2 |
| Jun | 24.3° | 8.8° | -0.1° | 83.4 | 83% | 148 | 42.3 |
| Jul | 25.4° | 11.6° | 2.8° | 112.8 | 84% | 142 | 39.1 |
| Aug | 25.1° | 10.5° | 0° | 150.3 | 85% | 109 | 37.4 |
| Sep | 17.2° | 6° | -5.8° | 161.1 | 87% | 70 | 51.4 |
| Oct | 10.3° | -0.2° | -18.8° | 126.5 | 91% | 34 | 57.1 |
| Nov | 5.3° | -7.3° | -26.3° | 103.8 | 93% | 12 | 65.4 |
| Dec | 2.6° | -8.4° | -25.9° | 100.1 | 94% | 5 | 81.6 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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