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Weather & Climate
Matanuska-Susitna Borough, Alaska, United States
Overview
Climate data and monthly weather averages for Matanuska-Susitna Borough.
Key Metrics
Annual Avg
-1.3°C
Summer Avg
11.7°C
Winter Avg
-12°C
Record High
27.6°C
Record Low
-33.2°C
Annual Precipitation
1164.5 mm
Avg Humidity
83%
Summer Humidity
79%
Winter Humidity
86%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 3.6° | -13.1° | -33.2° | 62.9 | 85% | 8 | 48.3 |
| Feb | 2.6° | -11.2° | -32.3° | 60.2 | 85% | 25 | 52 |
| Mar | 4.7° | -9.7° | -31.3° | 45.3 | 83% | 79 | 56.2 |
| Apr | 9.5° | -2.6° | -23.7° | 59.4 | 83% | 127 | 37 |
| May | 21.2° | 5.4° | -12.2° | 85.6 | 78% | 156 | 34.5 |
| Jun | 27.1° | 11.1° | -2° | 128.7 | 76% | 164 | 29.8 |
| Jul | 27.6° | 12.9° | 3.2° | 146 | 79% | 148 | 35.1 |
| Aug | 26.8° | 11.1° | -0.6° | 163.4 | 81% | 114 | 33.4 |
| Sep | 18.6° | 5.7° | -7.9° | 148.2 | 83% | 69 | 46 |
| Oct | 13.4° | -2.1° | -24.3° | 106.3 | 87% | 32 | 43.1 |
| Nov | 2.7° | -10.6° | -31.3° | 82.2 | 88% | 10 | 53.6 |
| Dec | 1.9° | -11.8° | -31.9° | 76.3 | 87% | 4 | 57.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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