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Uliastay, Mongolia climate
BSk Cold semi-arid
Uliastay has a strongly seasonal subarctic climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −29°C at night. Precipitation totals about 220 mm a year and is strongly seasonal — July alone averages 80 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)Uliastay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −16 | −10 | −1 | 9 | 16 | 22 | 24 | 22 | 16 | 7 | −5 | −14 |
| Avg temp (°C) | −22 | −18 | −9 | 3 | 9 | 15 | 17 | 15 | 8 | 0 | −11 | −20 |
| Avg low (°C) | −29 | −26 | −17 | −5 | 0 | 7 | 10 | 7 | 0 | −8 | −18 | −26 |
| Precipitation (mm) | 1 | 1 | 3 | 4 | 14 | 34 | 80 | 43 | 30 | 6 | 4 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −16 | −10 | −1 | 9 | 16 | 22 |
| Avg temp (°C) | −22 | −18 | −9 | 3 | 9 | 15 |
| Avg low (°C) | −29 | −26 | −17 | −5 | 0 | 7 |
| Precipitation (mm) | 1 | 1 | 3 | 4 | 14 | 34 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 22 | 16 | 7 | −5 | −14 |
| Avg temp (°C) | 17 | 15 | 8 | 0 | −11 | −20 |
| Avg low (°C) | 10 | 7 | 0 | −8 | −18 | −26 |
| Precipitation (mm) | 80 | 43 | 30 | 6 | 4 | 1 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 1 | 1 | 1 | 2 | 2 | 5 | 7 | 6 | 3 | 2 | 2 | 2 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 | 0.8 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | 24 | 23 | 25 | 20 | 11 | 0.6 | — | 0.3 | 13 | 24 | 23 | 24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 1 | 1 | 1 | 2 | 2 | 5 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 |
| Days with low ≤ 0°C (days) | 24 | 23 | 25 | 20 | 11 | 0.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 6 | 3 | 2 | 2 | 2 |
| Days with high ≥ 32°C (days) | 0.8 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | 0.3 | 13 | 24 | 23 | 24 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 44 | 56 | 62 | 60 | 64 | 65 | 60 | 51 | 51 | 50 | 46 |
| Relative humidity (%) | 83 | 79 | 67 | 51 | 47 | 49 | 55 | 57 | 55 | 60 | 75 | 81 |
| Wind speed (km/h) | 6.9 | 7.9 | 9.5 | 11.2 | 10.9 | 8.9 | 7.6 | 7.6 | 8.1 | 8.0 | 8.2 | 7.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 44 | 56 | 62 | 60 | 64 |
| Relative humidity (%) | 83 | 79 | 67 | 51 | 47 | 49 |
| Wind speed (km/h) | 6.9 | 7.9 | 9.5 | 11.2 | 10.9 | 8.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 60 | 51 | 51 | 50 | 46 |
| Relative humidity (%) | 55 | 57 | 55 | 60 | 75 | 81 |
| Wind speed (km/h) | 7.6 | 7.6 | 8.1 | 8.0 | 8.2 | 7.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Uliastai, a weather station, about 1 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.