WeatherWX.comUnalaska Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 34°F Lo 31°F | Hi 36°F Lo 32°F | Hi 35°F Lo 31°F | Hi 38°F Lo 33°F | Hi 42°F Lo 38°F | Hi 46°F Lo 42°F | Hi 50°F Lo 47°F | Hi 53°F Lo 50°F | Hi 50°F Lo 47°F | Hi 45°F Lo 43°F | Hi 40°F Lo 37°F | Hi 37°F Lo 34°F |
| 16 mph | 15 mph | 15 mph | 14 mph | 11 mph | 9 mph | 9 mph | 9 mph | 13 mph | 16 mph | 17 mph | 17 mph |
| 6.8 in | 5.9 in | 4.7 in | 5.1 in | 4.6 in | 4.2 in | 4.1 in | 5.4 in | 6.3 in | 6.8 in | 6.5 in | 7.8 in |
| 81% | 83% | 80% | 83% | 86% | 88% | 91% | 90% | 86% | 81% | 79% | 80% |
| 72% | 70% | 68% | 72% | 68% | 68% | 72% | 67% | 65% | 63% | 66% | 70% |
| 29.5 in | 29.6 in | 29.8 in | 29.7 in | 29.8 in | 29.9 in | 30.0 in | 29.9 in | 29.8 in | 29.7 in | 29.7 in | 29.5 in |
| 3 | 3 | 7 | 4 | 16 | 22 | 22 | 21 | 20 | 17 | 9 | 4 |
| 12 | 10 | 9 | 11 | 11 | 8 | 9 | 10 | 10 | 12 | 12 | 12 |
| 18 | 17 | 17 | 16 | 5 | 0 | 0 | 0 | 0 | 2 | 10 | 17 |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 |
| 158 | 155 | 178 | 163 | 179 | 167 | 164 | 193 | 194 | 217 | 192 | 171 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 1°C Lo -1°C | Hi 2°C Lo -0°C | Hi 2°C Lo -1°C | Hi 3°C Lo 1°C | Hi 5°C Lo 3°C | Hi 8°C Lo 6°C | Hi 10°C Lo 8°C | Hi 12°C Lo 10°C | Hi 10°C Lo 9°C | Hi 7°C Lo 6°C | Hi 5°C Lo 3°C | Hi 3°C Lo 1°C |
| 26 km/h | 25 km/h | 24 km/h | 23 km/h | 17 km/h | 15 km/h | 14 km/h | 15 km/h | 21 km/h | 25 km/h | 27 km/h | 27 km/h |
| 173 mm | 151 mm | 119 mm | 130 mm | 118 mm | 106 mm | 104 mm | 138 mm | 159 mm | 173 mm | 165 mm | 198 mm |
| 81% | 83% | 80% | 83% | 86% | 88% | 91% | 90% | 86% | 81% | 79% | 80% |
| 72% | 70% | 68% | 72% | 68% | 68% | 72% | 67% | 65% | 63% | 66% | 70% |
| 999 mb | 1004 mb | 1009 mb | 1007 mb | 1011 mb | 1012 mb | 1015 mb | 1013 mb | 1009 mb | 1004 mb | 1006 mb | 1000 mb |
| 3 | 3 | 7 | 4 | 16 | 22 | 22 | 21 | 20 | 17 | 9 | 4 |
| 12 | 10 | 9 | 11 | 11 | 8 | 9 | 10 | 10 | 12 | 12 | 12 |
| 18 | 17 | 17 | 16 | 5 | 0 | 0 | 0 | 0 | 2 | 10 | 17 |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 |
| 158 | 155 | 178 | 163 | 179 | 167 | 164 | 193 | 194 | 217 | 192 | 171 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.
