Undurkhaan climate — normals and trends
Undurkhaan (Mongolia) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 0.2 °C and it receives 291 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (19.5 °C on average) and the coldest is January (-21.5 °C). Rainfall peaks in July.
Undurkhaan averages 213 frost days, 9 hot days (≥ 30 °C) and 56 rainy days per year.
Undurkhaan has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 220 to 206 per year over the period.
The hottest day of the period reached 40.4 °C (on 12 July 1942) and the coldest -43.5 °C (on 21 January 1960).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
UndurkhaanHentiy
- coords
- 47.32°, 110.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.2°C
Average daily high
6.5°C
Average daily low
-5.8°C
Annual rainfall
291mm
Sunshine / day
10.0h
Mean relative humidity
59%
Average peak wind
19.2km/h
Seasonal range
41.0°C
Frost days (< 0 °C)
213 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
56 d/yr
Annual snowfall
34.1 cm
Average feels-like high
2.3 °C
Average feels-like low
-10.0 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.14 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.4 °C
12 July 1942
Coldest day
-43.5 °C
21 January 1960
Wettest day
62 mm
6 July 1977
Windiest day
52.9 km/h
19 May 2023
Strongest gust
89.3 km/h
21 May 1957
Hottest feels-like
39.0 °C
29 July 2007
Coldest feels-like
-49.4 °C
21 January 1960
Snowiest day
13.2 cm
29 September 2024
Sunniest day
15.0 h
8 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -10.0 °C | +5.3 °C | 6 mm | +4 mm |
| Feb | -9.0 °C | +1.3 °C | 0 mm | -4 mm |
| Mar | 3.2 °C | +3.8 °C | 11 mm | +4 mm |
| Apr | 13.5 °C | +4.0 °C | 12 mm | -3 mm |
| May | 18.3 °C | +0.8 °C | 21 mm | -6 mm |
| Jun | 25.7 °C | +2.4 °C | 26 mm | -21 mm |
| Jul | 26.9 °C | +1.8 °C | 103 mm | +33 mm |
| Aug | 23.2 °C | +0.2 °C | 55 mm | -10 mm |
| Sep | 19.0 °C | +2.1 °C | 30 mm | -3 mm |
| Oct | 5.5 °C | -2.3 °C | 7 mm | -8 mm |
| Nov | -3.2 °C | +1.8 °C | 11 mm | +5 mm |
| Dec | -16.4 °C | -2.9 °C | 0 mm | -2 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Undurkhaan?
Undurkhaan has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 0.2 °C and it receives 291 mm of precipitation per year.
What is the hottest day ever recorded in Undurkhaan?
The hottest day measured in Undurkhaan between 1940 and 2025 was 12 July 1942, reaching 40.4 °C.
What is the coldest day in Undurkhaan?
The coldest day measured in Undurkhaan between 1940 and 2025 was 21 January 1960, at -43.5 °C.
Does it snow in Undurkhaan?
Yes. Undurkhaan gets on average 34.1 cm of snow per year and has around 213 frost days.
Has the climate of Undurkhaan warmed?
Yes: Undurkhaan warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Undurkhaan?
The wettest day measured in Undurkhaan between 1940 and 2025 was 6 July 1977, with 62 mm of rain in 24 hours.
What was the windiest day in Undurkhaan?
The windiest day measured in Undurkhaan between 1940 and 2025 was 19 May 2023, with winds reaching 52.9 km/h.
What is the warmest month in Undurkhaan?
The warmest month in Undurkhaan is July (19.5 °C on average); the coldest is January (-21.5 °C).
How much does it rain in Undurkhaan?
Undurkhaan receives on average 291 mm of precipitation per year, spread over about 56 rainy days.
Is it sunny in Undurkhaan?
Undurkhaan gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
What is the biggest single-day snowfall in Undurkhaan?
The heaviest 24-hour snowfall measured in Undurkhaan between 1940 and 2025 was 29 September 2024, with 13.2 cm.
Are there tropical nights in Undurkhaan?
Yes: Undurkhaan has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Undurkhaan?
In Undurkhaan, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 29 July 2007, and the lowest was -49.4 °C on 21 January 1960.
Compare Undurkhaan with another city
Pick a second city: its normals will be set against these, indicator by indicator.