Climate Overview
The climate in Aldan is cold. The average annual temperature is -6°C and approximately 765mm of precipitation falls per year. July is the wettest month, receiving around 125mm of rainfall. Aldan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are December, January, February, when temperatures can drop to -33°C. Aldan experiences heavy snowfall, typically from January through December.
Temperature
Aldan has a wide annual temperature range, spanning 55°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 22°C with a mean of 17°C. December brings the harshest conditions, with lows dropping to -33°C and an average temperature of -30°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 14°C shift in average temperatures.
Precipitation
Aldan is a relatively dry area, receiving approximately 765mm of precipitation annually, which averages out to around 64mm per month. The wettest month is July, averaging 125mm of rainfall. August and September also tend to see above-average precipitation. The driest month is January, with just 21mm. That's 104mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Aldan receives heavy snowfall, accumulating around 337cm annually from January through December. The snowiest month is October, with approximately 63cm. Winter travel should account for significant snow cover.
Wind
Aldan is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
11 days until Autumn
It is currently summer in Aldan, which began on June 21, 2026. Aldan 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 July at around 22°C, while the coldest stretch bottoms out in December near -33°C. Autumn is next, beginning on September 23, 2026 (11 days from now).
Spring
Temperatures range from -19 to 9°C. Precipitation is moderate at around 168mm for the season, averaging 56mm per month. Winds are generally light, averaging 10km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 8 to 22°C. Rainfall is heavy, totalling around 317mm across the season with a monthly average of 106mm. Winds are generally light, averaging 9km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -24 to 10°C. Precipitation is moderate at around 211mm for the season, averaging 70mm per month. Expect around 138cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from -33 to -21°C. Rainfall is relatively light, with around 69mm over the season and a monthly average of 23mm. Expect around 69cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Aldan 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.