Climate Overview
The climate in Adak Airport is cool. The average annual temperature is 5°C and approximately 1069mm of precipitation falls per year. Adak Airport receives a notable amount of rainfall throughout the year, including during its driest month. Adak Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are January, February, March, when temperatures can drop to 0°C. Snowfall occurs from January to December, with around 150cm accumulating over the season.
Temperature
Adak Airport sees moderate temperature variation throughout the year, ranging from 0°C to 11°C. August is the warmest month, though highs remain moderate at 11°C with a mean of 10°C. The coldest month is January, when overnight lows fall to 0°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.
Precipitation
Adak Airport is a moderately rainy area, receiving approximately 1069mm of precipitation annually, which averages out to around 89mm per month. The wettest month is November, averaging 114mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 55mm. That's 60mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 150cm accumulating over the season. January typically sees the most snow at around 38cm.
Wind
Adak Airport is very windy, with an average annual wind speed of 35km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 42km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 18km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 41km/h in winter, 35km/h in spring, 26km/h in summer, 37km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Adak Airport, which began on March 20, 2026. Adak Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 11°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 1 to 6°C. Precipitation is moderate at around 239mm for the season, averaging 80mm per month. Winds are strong, averaging 35km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 6 to 11°C. Precipitation is moderate at around 207mm for the season, averaging 69mm per month. Winds are strong, averaging 26km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 3 to 11°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Expect around 9cm of snow accumulation during this period. Winds are strong, averaging 37km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 0 to 3°C. Rainfall is heavy, totalling around 316mm across the season with a monthly average of 105mm. Expect around 95cm of snow accumulation during this period. Winds are strong, averaging 41km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Adak Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
