Undurkhaan, Mongolia Climate
The warmest month is July, with an average high of 27°C; the coldest is January, with an average low of -23°C. A normal year brings 250 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 26
- Normal high
- 15°C
- Normal low
- 0°C
- Reanalysis high
- 27°Cin 2019
- Reanalysis low
- -5°Cin 2017
- Chance of a wet day
- 13%
- Daylight
- 11 h 59 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | -13°C | -23°C | -1°C (2002) | -37°C (2001) | 2 mm | 0.4 |
| February | -8°C | -21°C | 6°C (2007) | -34°C (2006) | 3 mm | 0.8 |
| March | 1°C | -12°C | 20°C (2018) | -30°C (2010) | 4 mm | 1.4 |
| April | 10°C | -4°C | 29°C (2003) | -17°C (2010) | 8 mm | 2.2 |
| May | 19°C | 2°C | 34°C (2017) | -7°C (2017) | 19 mm | 4.5 |
| June | 25°C | 10°C | 38°C (2010) | -2°C (1992) | 47 mm | 8.8 |
| July | 27°C | 13°C | 39°C (2010) | 6°C (1997) | 68 mm | 12.0 |
| August | 25°C | 11°C | 38°C (2008) | -1°C (2017) | 55 mm | 9.4 |
| September | 18°C | 3°C | 31°C (2000) | -9°C (2011) | 25 mm | 5.4 |
| October | 8°C | -4°C | 23°C (2010) | -19°C (2016) | 10 mm | 2.6 |
| November | -3°C | -14°C | 11°C (2005) | -28°C (2016) | 5 mm | 1.5 |
| December | -11°C | -21°C | 0°C (2013) | -32°C (2020) | 4 mm | 1.0 |
| Year | 8°C | -5°C | 250 mm | 50 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
250 mm in a normal year, most in July.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Undurkhaan.
Days with a mean dew point of 18°C or more are rare here in every month.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | -21°C | 82% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | -19°C | 74% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | -14°C | 57% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | -9°C | 43% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | -4°C | 41% | 100% | 0% | 0% | 0% | 0% | 0% |
| June | 4°C | 45% | 99% | 1% | 0% | 0% | 0% | 0% |
| July | 9°C | 53% | 91% | 8% | 1% | 0% | 0% | 0% |
| August | 7°C | 55% | 94% | 5% | 0% | 0% | 0% | 0% |
| September | 0°C | 55% | 100% | 0% | 0% | 0% | 0% | 0% |
| October | -7°C | 58% | 100% | 0% | 0% | 0% | 0% | 0% |
| November | -14°C | 69% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | -19°C | 81% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is January, with the sky 45 percent covered on average; the cloudiest is July, at 66 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is April, averaging 19.4 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 15 h 57 min of daylight; the shortest is Dec 21, with 8 h 27 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Undurkhaan in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.