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Ölgii, Mongolia climate
BWk Cold desert
Ölgii has a strongly seasonal subarctic climate (Cold desert, Köppen BWk). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −23°C at night. Precipitation totals about 89 mm a year and is strongly seasonal — July alone averages 27 mm while January barely receives 1 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Ölgii climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −11 | −6 | 2 | 10 | 16 | 22 | 24 | 22 | 16 | 8 | −2 | −9 |
| Avg temp (°C) | −17 | −13 | −5 | 3 | 9 | 16 | 18 | 15 | 9 | 1 | −8 | −14 |
| Avg low (°C) | −23 | −20 | −13 | −4 | 3 | 9 | 12 | 9 | 2 | −5 | −13 | −20 |
| Precipitation (mm) | 1 | 1 | 2 | 4 | 10 | 17 | 27 | 17 | 7 | 2 | 2 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −11 | −6 | 2 | 10 | 16 | 22 |
| Avg temp (°C) | −17 | −13 | −5 | 3 | 9 | 16 |
| Avg low (°C) | −23 | −20 | −13 | −4 | 3 | 9 |
| Precipitation (mm) | 1 | 1 | 2 | 4 | 10 | 17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 22 | 16 | 8 | −2 | −9 |
| Avg temp (°C) | 18 | 15 | 9 | 1 | −8 | −14 |
| Avg low (°C) | 12 | 9 | 2 | −5 | −13 | −20 |
| Precipitation (mm) | 27 | 17 | 7 | 2 | 2 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 56 | 64 | 71 | 67 | 67 | 68 | 63 | 60 | 62 | 60 | 57 |
| Relative humidity (%) | 82 | 74 | 59 | 46 | 43 | 44 | 49 | 49 | 49 | 52 | 66 | 76 |
| Wind speed (km/h) | 10.7 | 10.8 | 11.7 | 12.5 | 11.6 | 9.0 | 7.6 | 7.6 | 8.9 | 10.3 | 12.3 | 11.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 56 | 64 | 71 | 67 | 67 |
| Relative humidity (%) | 82 | 74 | 59 | 46 | 43 | 44 |
| Wind speed (km/h) | 10.7 | 10.8 | 11.7 | 12.5 | 11.6 | 9.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 63 | 60 | 62 | 60 | 57 |
| Relative humidity (%) | 49 | 49 | 49 | 52 | 66 | 76 |
| Wind speed (km/h) | 7.6 | 7.6 | 8.9 | 10.3 | 12.3 | 11.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ulgi, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.