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Choibalsan, Mongolia climate
BSk Cold semi-arid
Choibalsan has a strongly seasonal cold-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −25°C at night. Precipitation totals about 242 mm a year and is strongly seasonal — July alone averages 86 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)Choibalsan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −15 | −9 | 0 | 11 | 20 | 25 | 28 | 26 | 19 | 9 | −3 | −13 |
| Avg temp (°C) | −20 | −16 | −6 | 4 | 13 | 19 | 22 | 19 | 13 | 3 | −9 | −18 |
| Avg low (°C) | −25 | −22 | −13 | −3 | 5 | 11 | 15 | 13 | 5 | −4 | −15 | −23 |
| Precipitation (mm) | 1 | 1 | 3 | 6 | 15 | 30 | 86 | 56 | 37 | 4 | 1 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −15 | −9 | 0 | 11 | 20 | 25 |
| Avg temp (°C) | −20 | −16 | −6 | 4 | 13 | 19 |
| Avg low (°C) | −25 | −22 | −13 | −3 | 5 | 11 |
| Precipitation (mm) | 1 | 1 | 3 | 6 | 15 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 26 | 19 | 9 | −3 | −13 |
| Avg temp (°C) | 22 | 19 | 13 | 3 | −9 | −18 |
| Avg low (°C) | 15 | 13 | 5 | −4 | −15 | −23 |
| Precipitation (mm) | 86 | 56 | 37 | 4 | 1 | 2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.8 | 0.5 | 1 | 2 | 3 | 4 | 6 | 4 | 3 | 2 | 1 | 1 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.8 | 3 | 5 | 4 | 0.5 | — | — | — |
| Days with low ≤ 0°C (days) | 23 | 21 | 23 | 17 | 3 | 0.1 | — | — | 2 | 18 | 21 | 22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.8 | 0.5 | 1 | 2 | 3 | 4 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.8 | 3 |
| Days with low ≤ 0°C (days) | 23 | 21 | 23 | 17 | 3 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 4 | 3 | 2 | 1 | 1 |
| Days with high ≥ 32°C (days) | 5 | 4 | 0.5 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 2 | 18 | 21 | 22 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 46 | 53 | 60 | 63 | 63 | 64 | 57 | 52 | 52 | 54 | 52 |
| Relative humidity (%) | 84 | 77 | 58 | 44 | 41 | 46 | 53 | 55 | 54 | 58 | 68 | 82 |
| Wind speed (m/s) | 3.3 | 3.4 | 3.7 | 4.2 | 4.0 | 3.0 | 2.6 | 2.5 | 2.9 | 3.1 | 3.4 | 3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 46 | 53 | 60 | 63 | 63 |
| Relative humidity (%) | 84 | 77 | 58 | 44 | 41 | 46 |
| Wind speed (m/s) | 3.3 | 3.4 | 3.7 | 4.2 | 4.0 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 57 | 52 | 52 | 54 | 52 |
| Relative humidity (%) | 53 | 55 | 54 | 58 | 68 | 82 |
| Wind speed (m/s) | 2.6 | 2.5 | 2.9 | 3.1 | 3.4 | 3.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Choibalsan, a weather station, about 2 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.