Mirny climate — normals and trends
Mirny (Russia) has a dry-winter subarctic climate (Dwc) under the Köppen-Geiger classification. Its mean annual temperature is -7.3 °C and it receives 314 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 (17.2 °C on average) and the coldest is January (-31.6 °C). Rainfall peaks in August.
Mirny averages 241 frost days, 3 hot days (≥ 30 °C) and 77 rainy days per year.
Mirny has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.5 °C (on 28 July 2022) and the coldest -58.8 °C (on 13 January 1966).
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
MirnySakha
- coords
- 62.54°, 113.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
-7.3°C
Average daily high
-2.8°C
Average daily low
-12.0°C
Annual rainfall
314mm
Sunshine / day
8.0h
Mean relative humidity
71%
Average peak wind
13.9km/h
Seasonal range
48.8°C
Frost days (< 0 °C)
241 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
77 d/yr
Annual snowfall
84.3 cm
Average feels-like high
-6.8 °C
Average feels-like low
-16.3 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.18 · 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
34.5 °C
28 July 2022
Coldest day
-58.8 °C
13 January 1966
Wettest day
41 mm
29 July 1952
Windiest day
40.7 km/h
26 May 1951
Strongest gust
93.6 km/h
27 April 2004
Hottest feels-like
35.7 °C
31 July 1954
Coldest feels-like
-64.1 °C
13 January 1966
Snowiest day
12.9 cm
2 June 1965
Sunniest day
19.0 h
9 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 | -22.4 °C | +5.8 °C | 12 mm | +5 mm |
| Feb | -20.1 °C | +3.5 °C | 16 mm | +11 mm |
| Mar | -10.5 °C | +0.4 °C | 25 mm | +16 mm |
| Apr | 1.7 °C | +2.0 °C | 33 mm | +14 mm |
| May | 11.0 °C | +1.6 °C | 31 mm | -1 mm |
| Jun | 19.7 °C | +0.2 °C | 40 mm | -9 mm |
| Jul | 23.5 °C | +1.1 °C | 64 mm | +13 mm |
| Aug | 20.6 °C | +2.1 °C | 14 mm | -39 mm |
| Sep | 8.5 °C | -0.6 °C | 66 mm | +29 mm |
| Oct | -2.5 °C | +0.8 °C | 17 mm | -11 mm |
| Nov | -20.2 °C | -1.0 °C | 21 mm | +6 mm |
| Dec | -31.9 °C | -4.7 °C | 13 mm | +4 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 Mirny?
Mirny has a dry-winter subarctic climate (Köppen Dwc). Over 1940-2025, the average annual temperature is -7.3 °C and it receives 314 mm of precipitation per year.
What is the hottest day ever recorded in Mirny?
The hottest day measured in Mirny between 1940 and 2025 was 28 July 2022, reaching 34.5 °C.
What is the coldest day in Mirny?
The coldest day measured in Mirny between 1940 and 2025 was 13 January 1966, at -58.8 °C.
Does it snow in Mirny?
Yes. Mirny gets on average 84.3 cm of snow per year and has around 241 frost days.
Has the climate of Mirny warmed?
Yes: Mirny warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mirny?
The wettest day measured in Mirny between 1940 and 2025 was 29 July 1952, with 41 mm of rain in 24 hours.
What was the windiest day in Mirny?
The windiest day measured in Mirny between 1940 and 2025 was 26 May 1951, with winds reaching 40.7 km/h.
What is the warmest month in Mirny?
The warmest month in Mirny is July (17.2 °C on average); the coldest is January (-31.6 °C).
How much does it rain in Mirny?
Mirny receives on average 314 mm of precipitation per year, spread over about 77 rainy days.
Is it sunny in Mirny?
Mirny gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mirny?
The heaviest 24-hour snowfall measured in Mirny between 1940 and 2025 was 2 June 1965, with 12.9 cm.
Are there tropical nights in Mirny?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Mirny.
What was the most extreme apparent temperature in Mirny?
In Mirny, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 31 July 1954, and the lowest was -64.1 °C on 13 January 1966.
Compare Mirny with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mirny