Aldan, Russia Climate
The warmest month is July, with an average high of 20°C; the coldest is January, with an average low of -32°C. A normal year brings 864 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 25
- Normal high
- 4°C
- Normal low
- -3°C
- Reanalysis high
- 14°Cin 2003
- Reanalysis low
- -10°Cin 1996
- Chance of a wet day
- 62%
- Daylight
- 12 h 01 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | -25°C | -32°C | -8°C (2007) | -52°C (1996) | 25 mm | 9.3 |
| February | -21°C | -30°C | -6°C (2017) | -52°C (1999) | 23 mm | 8.5 |
| March | -13°C | -22°C | 0°C (2015) | -45°C (2012) | 34 mm | 12.4 |
| April | -4°C | -12°C | 10°C (2014) | -29°C (1992) | 57 mm | 15.0 |
| May | 7°C | -2°C | 23°C (2012) | -16°C (2019) | 105 mm | 18.6 |
| June | 18°C | 7°C | 29°C (2017) | -5°C (1992) | 117 mm | 18.0 |
| July | 20°C | 11°C | 30°C (1996) | 1°C (1996) | 136 mm | 18.6 |
| August | 17°C | 8°C | 27°C (1996) | -5°C (2016) | 124 mm | 18.6 |
| September | 8°C | 0°C | 22°C (2007) | -12°C (1993) | 108 mm | 18.0 |
| October | -5°C | -12°C | 11°C (2007) | -32°C (2012) | 71 mm | 18.6 |
| November | -18°C | -25°C | 0°C (2013) | -46°C (1997) | 36 mm | 12.0 |
| December | -25°C | -31°C | -7°C (2013) | -50°C (1993) | 28 mm | 9.3 |
| Year | -4°C | -12°C | 864 mm | 177 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
864 mm in a normal year, most in July.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Aldan.
The muggiest month is July, when 1 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | -28°C | 99% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | -26°C | 98% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | -18°C | 97% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | -8°C | 96% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 1°C | 87% | 100% | 0% | 0% | 0% | 0% | 0% |
| June | 9°C | 80% | 82% | 15% | 2% | 0% | 0% | 0% |
| July | 13°C | 83% | 49% | 33% | 18% | 1% | 0% | 0% |
| August | 10°C | 84% | 77% | 18% | 5% | 0% | 0% | 0% |
| September | 2°C | 88% | 100% | 0% | 0% | 0% | 0% | 0% |
| October | -9°C | 96% | 100% | 0% | 0% | 0% | 0% | 0% |
| November | -22°C | 99% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | -28°C | 99% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is February, with the sky 49 percent covered on average; the cloudiest is October, at 77 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is January, averaging 11.5 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 21, with 18 h 23 min of daylight; the shortest is Dec 19, with 6 h 17 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Aldan in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.