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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 75°F, while the coldest is January averaging around −9°F at night. Precipitation totals about 4 inches a year and is strongly seasonal — July alone averages 1.1 inches while January barely receives 0.03 inches.
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 (°F) | 12 | 22 | 35 | 51 | 61 | 72 | 75 | 71 | 60 | 46 | 29 | 16 |
| Avg temp (°F) | 2 | 9 | 22 | 38 | 49 | 60 | 64 | 60 | 48 | 34 | 18 | 6 |
| Avg low (°F) | −9 | −4 | 9 | 25 | 37 | 49 | 53 | 48 | 36 | 23 | 8 | −3 |
| Precipitation (in) | 0.0 | 0.0 | 0.1 | 0.1 | 0.4 | 0.7 | 1.1 | 0.7 | 0.3 | 0.1 | 0.1 | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 12 | 22 | 35 | 51 | 61 | 72 |
| Avg temp (°F) | 2 | 9 | 22 | 38 | 49 | 60 |
| Avg low (°F) | −9 | −4 | 9 | 25 | 37 | 49 |
| Precipitation (in) | 0.0 | 0.0 | 0.1 | 0.1 | 0.4 | 0.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 71 | 60 | 46 | 29 | 16 |
| Avg temp (°F) | 64 | 60 | 48 | 34 | 18 | 6 |
| Avg low (°F) | 53 | 48 | 36 | 23 | 8 | −3 |
| Precipitation (in) | 1.1 | 0.7 | 0.3 | 0.1 | 0.1 | 0.1 |
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 (mph) | 6.7 | 6.7 | 7.2 | 7.8 | 7.2 | 5.6 | 4.7 | 4.7 | 5.5 | 6.4 | 7.7 | 7.3 |
| 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 (mph) | 6.7 | 6.7 | 7.2 | 7.8 | 7.2 | 5.6 |
| 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 (mph) | 4.7 | 4.7 | 5.5 | 6.4 | 7.7 | 7.3 |
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.