Chadan climate — normals and trends
Chadan (Russia) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 0.5 °C and it receives 270 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 (18.7 °C on average) and the coldest is January (-19.7 °C). Rainfall peaks in July.
Chadan averages 210 frost days, 5 hot days (≥ 30 °C) and 61 rainy days per year.
Chadan has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 215 to 205 per year over the period.
The hottest day of the period reached 37.0 °C (on 20 June 2025) and the coldest -46.6 °C (on 27 January 1969).
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
ChadanRepublic of Tyva
- coords
- 51.29°, 91.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.5°C
Average daily high
7.0°C
Average daily low
-5.5°C
Annual rainfall
270mm
Sunshine / day
10.2h
Mean relative humidity
59%
Average peak wind
10.7km/h
Seasonal range
38.4°C
Frost days (< 0 °C)
210 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
61 d/yr
Annual snowfall
32.6 cm
Average feels-like high
3.8 °C
Average feels-like low
-9.0 °C
Average peak gust
24.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.19 · 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
37.0 °C
20 June 2025
Coldest day
-46.6 °C
27 January 1969
Wettest day
42 mm
21 July 1996
Windiest day
42.7 km/h
11 April 1950
Strongest gust
88.6 km/h
11 April 1950
Hottest feels-like
38.0 °C
15 July 2004
Coldest feels-like
-52.0 °C
27 January 1969
Snowiest day
9.2 cm
28 September 2003
Sunniest day
16.0 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 | -10.5 °C | +2.2 °C | 6 mm | +3 mm |
| Feb | -6.1 °C | +2.5 °C | 1 mm | -2 mm |
| Mar | 2.7 °C | +3.0 °C | 7 mm | -1 mm |
| Apr | 15.3 °C | +4.8 °C | 15 mm | -0 mm |
| May | 18.8 °C | +1.0 °C | 50 mm | +25 mm |
| Jun | 27.2 °C | +4.0 °C | 23 mm | -24 mm |
| Jul | 26.8 °C | +2.5 °C | 34 mm | -25 mm |
| Aug | 22.9 °C | +0.6 °C | 44 mm | -9 mm |
| Sep | 17.0 °C | +0.7 °C | 82 mm | +51 mm |
| Oct | 4.4 °C | -2.8 °C | 16 mm | +1 mm |
| Nov | -0.4 °C | +3.8 °C | 11 mm | +3 mm |
| Dec | -8.2 °C | +3.4 °C | 5 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 Chadan?
Chadan has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 0.5 °C and it receives 270 mm of precipitation per year.
What is the hottest day ever recorded in Chadan?
The hottest day measured in Chadan between 1940 and 2025 was 20 June 2025, reaching 37.0 °C.
What is the coldest day in Chadan?
The coldest day measured in Chadan between 1940 and 2025 was 27 January 1969, at -46.6 °C.
Does it snow in Chadan?
Yes. Chadan gets on average 32.6 cm of snow per year and has around 210 frost days.
Has the climate of Chadan warmed?
Yes: Chadan warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chadan?
The wettest day measured in Chadan between 1940 and 2025 was 21 July 1996, with 42 mm of rain in 24 hours.
What was the windiest day in Chadan?
The windiest day measured in Chadan between 1940 and 2025 was 11 April 1950, with winds reaching 42.7 km/h.
What is the warmest month in Chadan?
The warmest month in Chadan is July (18.7 °C on average); the coldest is January (-19.7 °C).
How much does it rain in Chadan?
Chadan receives on average 270 mm of precipitation per year, spread over about 61 rainy days.
Is it sunny in Chadan?
Chadan gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
What is the biggest single-day snowfall in Chadan?
The heaviest 24-hour snowfall measured in Chadan between 1940 and 2025 was 28 September 2003, with 9.2 cm.
Are there tropical nights in Chadan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Chadan.
What was the most extreme apparent temperature in Chadan?
In Chadan, between 1940 and 2025, the highest apparent temperature reached 38.0 °C on 15 July 2004, and the lowest was -52.0 °C on 27 January 1969.
Compare Chadan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chadan