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Arvayheer, Mongolia climate
BSk Cold semi-arid
Arvayheer has a strongly seasonal cold-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 23°C, while the coldest is January averaging around −19°C at night. Precipitation totals about 241 mm a year and is strongly seasonal — July alone averages 90 mm while January barely receives 0 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)Arvayheer climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −9 | −5 | 2 | 10 | 16 | 22 | 23 | 22 | 16 | 8 | −1 | −7 |
| Avg temp (°C) | −14 | −11 | −4 | 3 | 10 | 15 | 18 | 16 | 10 | 3 | −6 | −12 |
| Avg low (°C) | −19 | −17 | −11 | −3 | 3 | 9 | 12 | 10 | 4 | −4 | −12 | −18 |
| Precipitation (mm) | 0 | 3 | 1 | 2 | 12 | 39 | 90 | 74 | 17 | 3 | 1 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −9 | −5 | 2 | 10 | 16 | 22 |
| Avg temp (°C) | −14 | −11 | −4 | 3 | 10 | 15 |
| Avg low (°C) | −19 | −17 | −11 | −3 | 3 | 9 |
| Precipitation (mm) | 0 | 3 | 1 | 2 | 12 | 39 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 22 | 16 | 8 | −1 | −7 |
| Avg temp (°C) | 18 | 16 | 10 | 3 | −6 | −12 |
| Avg low (°C) | 12 | 10 | 4 | −4 | −12 | −18 |
| Precipitation (mm) | 90 | 74 | 17 | 3 | 1 | 1 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.4 | 0.4 | 1 | 1 | 2 | 4 | 6 | 6 | 2 | 1 | 0.8 | 0.5 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 | 0.6 | 0.0 | — | — | — | — |
| Days with low ≤ 0°C (days) | 22 | 22 | 24 | 16 | 7 | 0.1 | — | 0.1 | 5 | 18 | 22 | 23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.4 | 0.4 | 1 | 1 | 2 | 4 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 |
| Days with low ≤ 0°C (days) | 22 | 22 | 24 | 16 | 7 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 6 | 2 | 1 | 0.8 | 0.5 |
| Days with high ≥ 32°C (days) | 0.6 | 0.0 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | 0.1 | 5 | 18 | 22 | 23 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 43 | 53 | 59 | 61 | 66 | 66 | 59 | 51 | 47 | 47 | 47 |
| Relative humidity (%) | 74 | 68 | 56 | 46 | 44 | 50 | 58 | 59 | 55 | 57 | 66 | 72 |
| Wind speed (km/h) | 9.8 | 10.7 | 12.3 | 13.6 | 12.8 | 9.9 | 8.0 | 8.0 | 9.3 | 9.9 | 11.0 | 10.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 43 | 53 | 59 | 61 | 66 |
| Relative humidity (%) | 74 | 68 | 56 | 46 | 44 | 50 |
| Wind speed (km/h) | 9.8 | 10.7 | 12.3 | 13.6 | 12.8 | 9.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 59 | 51 | 47 | 47 | 47 |
| Relative humidity (%) | 58 | 59 | 55 | 57 | 66 | 72 |
| Wind speed (km/h) | 8.0 | 8.0 | 9.3 | 9.9 | 11.0 | 10.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Arvaiheer, a weather station, inside the city. 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.