Nalayh climate — normals and trends
Nalayh (Mongolia) has a dry-winter subarctic climate (Dwc) under the Köppen-Geiger classification. Its mean annual temperature is -2.4 °C and it receives 357 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 (16.0 °C on average) and the coldest is January (-22.5 °C). Rainfall peaks in July.
Nalayh averages 234 frost days, 1 hot days (≥ 30 °C) and 65 rainy days per year.
Nalayh has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 241 to 227 per year over the period.
The hottest day of the period reached 34.0 °C (on 24 July 1999) and the coldest -44.1 °C (on 23 January 2023).
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
NalayhUlaanbaatar
- coords
- 47.77°, 107.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
-2.4°C
Average daily high
3.5°C
Average daily low
-8.1°C
Annual rainfall
357mm
Sunshine / day
10.1h
Mean relative humidity
65%
Average peak wind
17.1km/h
Seasonal range
38.5°C
Frost days (< 0 °C)
234 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
65 d/yr
Annual snowfall
47.9 cm
Average feels-like high
-0.5 °C
Average feels-like low
-12.2 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.23 · 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
34.0 °C
24 July 1999
Coldest day
-44.1 °C
23 January 2023
Wettest day
55 mm
31 July 1959
Windiest day
49.9 km/h
15 May 1951
Strongest gust
98.6 km/h
18 April 1980
Hottest feels-like
34.5 °C
23 July 1999
Coldest feels-like
-50.1 °C
23 January 2023
Snowiest day
15.5 cm
27 May 2013
Sunniest day
15.3 h
22 June 1949
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 | -14.8 °C | +1.9 °C | 5 mm | +4 mm |
| Feb | -13.2 °C | -0.9 °C | 2 mm | -2 mm |
| Mar | 0.0 °C | +3.2 °C | 5 mm | -3 mm |
| Apr | 10.1 °C | +4.0 °C | 4 mm | -14 mm |
| May | 15.2 °C | +1.6 °C | 15 mm | -18 mm |
| Jun | 22.1 °C | +2.8 °C | 24 mm | -38 mm |
| Jul | 23.9 °C | +2.8 °C | 45 mm | -42 mm |
| Aug | 20.1 °C | +0.7 °C | 66 mm | -15 mm |
| Sep | 14.7 °C | +1.3 °C | 42 mm | +2 mm |
| Oct | 1.5 °C | -3.0 °C | 7 mm | -7 mm |
| Nov | -6.6 °C | +0.7 °C | 19 mm | +12 mm |
| Dec | -17.4 °C | -2.1 °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 Nalayh?
Nalayh has a dry-winter subarctic climate (Köppen Dwc). Over 1940-2025, the average annual temperature is -2.4 °C and it receives 357 mm of precipitation per year.
What is the hottest day ever recorded in Nalayh?
The hottest day measured in Nalayh between 1940 and 2025 was 24 July 1999, reaching 34.0 °C.
What is the coldest day in Nalayh?
The coldest day measured in Nalayh between 1940 and 2025 was 23 January 2023, at -44.1 °C.
Does it snow in Nalayh?
Yes. Nalayh gets on average 47.9 cm of snow per year and has around 234 frost days.
Has the climate of Nalayh warmed?
Yes: Nalayh warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nalayh?
The wettest day measured in Nalayh between 1940 and 2025 was 31 July 1959, with 55 mm of rain in 24 hours.
What was the windiest day in Nalayh?
The windiest day measured in Nalayh between 1940 and 2025 was 15 May 1951, with winds reaching 49.9 km/h.
What is the warmest month in Nalayh?
The warmest month in Nalayh is July (16.0 °C on average); the coldest is January (-22.5 °C).
How much does it rain in Nalayh?
Nalayh receives on average 357 mm of precipitation per year, spread over about 65 rainy days.
Is it sunny in Nalayh?
Nalayh gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nalayh?
The heaviest 24-hour snowfall measured in Nalayh between 1940 and 2025 was 27 May 2013, with 15.5 cm.
Are there tropical nights in Nalayh?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Nalayh.
What was the most extreme apparent temperature in Nalayh?
In Nalayh, between 1940 and 2025, the highest apparent temperature reached 34.5 °C on 23 July 1999, and the lowest was -50.1 °C on 23 January 2023.
Compare Nalayh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nalayh