Ust'-Uda climate — normals and trends
Ust'-Uda (Russia) has a dry-winter subarctic climate (Dwc) under the Köppen-Geiger classification. Its mean annual temperature is -1.1 °C and it receives 406 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 (18.9 °C on average) and the coldest is January (-22.6 °C). Rainfall peaks in July.
Ust'-Uda averages 212 frost days, 2 hot days (≥ 30 °C) and 89 rainy days per year.
Ust'-Uda has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 217 to 207 per year over the period.
The hottest day of the period reached 35.1 °C (on 21 June 1991) and the coldest -47.7 °C (on 28 December 1949).
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
Ust'-UdaIrkutsk Oblast
- coords
- 54.17°, 103.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
-1.1°C
Average daily high
3.6°C
Average daily low
-5.6°C
Annual rainfall
406mm
Sunshine / day
8.8h
Mean relative humidity
72%
Average peak wind
13.1km/h
Seasonal range
41.5°C
Frost days (< 0 °C)
212 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
89 d/yr
Annual snowfall
70.0 cm
Average feels-like high
0.5 °C
Average feels-like low
-9.2 °C
Average peak gust
28.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.34 · 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
35.1 °C
21 June 1991
Coldest day
-47.7 °C
28 December 1949
Wettest day
64 mm
20 August 1952
Windiest day
39.7 km/h
2 January 1979
Strongest gust
90.7 km/h
2 January 1979
Hottest feels-like
37.4 °C
4 July 2024
Coldest feels-like
-52.2 °C
28 December 1949
Snowiest day
16.0 cm
23 April 1975
Sunniest day
16.1 h
23 June 2025
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 | -13.0 °C | +5.9 °C | 12 mm | +4 mm |
| Feb | -12.2 °C | +1.5 °C | 12 mm | +5 mm |
| Mar | 0.0 °C | +3.5 °C | 14 mm | +4 mm |
| Apr | 9.0 °C | +3.2 °C | 31 mm | +9 mm |
| May | 16.1 °C | +2.1 °C | 36 mm | -0 mm |
| Jun | 23.0 °C | +2.0 °C | 50 mm | -6 mm |
| Jul | 24.8 °C | +1.3 °C | 50 mm | -31 mm |
| Aug | 21.8 °C | +1.0 °C | 88 mm | +9 mm |
| Sep | 16.2 °C | +2.5 °C | 22 mm | -28 mm |
| Oct | 1.1 °C | -3.4 °C | 34 mm | +10 mm |
| Nov | -2.8 °C | +4.7 °C | 23 mm | +6 mm |
| Dec | -15.6 °C | +0.8 °C | 15 mm | +0 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 Ust'-Uda?
Ust'-Uda has a dry-winter subarctic climate (Köppen Dwc). Over 1940-2025, the average annual temperature is -1.1 °C and it receives 406 mm of precipitation per year.
What is the hottest day ever recorded in Ust'-Uda?
The hottest day measured in Ust'-Uda between 1940 and 2025 was 21 June 1991, reaching 35.1 °C.
What is the coldest day in Ust'-Uda?
The coldest day measured in Ust'-Uda between 1940 and 2025 was 28 December 1949, at -47.7 °C.
Does it snow in Ust'-Uda?
Yes. Ust'-Uda gets on average 70.0 cm of snow per year and has around 212 frost days.
Has the climate of Ust'-Uda warmed?
Yes: Ust'-Uda warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ust'-Uda?
The wettest day measured in Ust'-Uda between 1940 and 2025 was 20 August 1952, with 64 mm of rain in 24 hours.
What was the windiest day in Ust'-Uda?
The windiest day measured in Ust'-Uda between 1940 and 2025 was 2 January 1979, with winds reaching 39.7 km/h.
What is the warmest month in Ust'-Uda?
The warmest month in Ust'-Uda is July (18.9 °C on average); the coldest is January (-22.6 °C).
How much does it rain in Ust'-Uda?
Ust'-Uda receives on average 406 mm of precipitation per year, spread over about 89 rainy days.
Is it sunny in Ust'-Uda?
Ust'-Uda gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ust'-Uda?
The heaviest 24-hour snowfall measured in Ust'-Uda between 1940 and 2025 was 23 April 1975, with 16.0 cm.
Are there tropical nights in Ust'-Uda?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ust'-Uda.
What was the most extreme apparent temperature in Ust'-Uda?
In Ust'-Uda, between 1940 and 2025, the highest apparent temperature reached 37.4 °C on 4 July 2024, and the lowest was -52.2 °C on 28 December 1949.
Compare Ust'-Uda with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ust'-Uda