Zima climate — normals and trends
Zima (Russia) has a dry-winter subarctic climate (Dwc) under the Köppen-Geiger classification. Its mean annual temperature is -0.7 °C and it receives 428 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 (-22.0 °C). Rainfall peaks in July.
Zima averages 216 frost days, 6 hot days (≥ 30 °C) and 91 rainy days per year.
Zima has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 221 to 211 per year over the period.
The hottest day of the period reached 36.3 °C (on 21 June 1991) and the coldest -51.7 °C (on 8 January 2001).
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
ZimaIrkutsk Oblast
- coords
- 53.92°, 102.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
-0.7°C
Average daily high
4.8°C
Average daily low
-6.0°C
Annual rainfall
428mm
Sunshine / day
8.8h
Mean relative humidity
71%
Average peak wind
14.1km/h
Seasonal range
40.7°C
Frost days (< 0 °C)
216 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
91 d/yr
Annual snowfall
71.0 cm
Average feels-like high
1.5 °C
Average feels-like low
-9.8 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.32 · 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
36.3 °C
21 June 1991
Coldest day
-51.7 °C
8 January 2001
Wettest day
75 mm
30 July 1980
Windiest day
41.5 km/h
5 January 1979
Strongest gust
99.7 km/h
16 May 1990
Hottest feels-like
38.2 °C
15 July 2004
Coldest feels-like
-57.0 °C
8 January 2001
Snowiest day
11.3 cm
26 October 1972
Sunniest day
16.3 h
15 June 2023
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 | -11.7 °C | +5.9 °C | 13 mm | +4 mm |
| Feb | -10.5 °C | +1.8 °C | 12 mm | +4 mm |
| Mar | 1.7 °C | +3.9 °C | 18 mm | +7 mm |
| Apr | 11.2 °C | +3.7 °C | 31 mm | +7 mm |
| May | 18.1 °C | +2.0 °C | 35 mm | -7 mm |
| Jun | 24.6 °C | +2.0 °C | 43 mm | -21 mm |
| Jul | 25.0 °C | +0.7 °C | 62 mm | -24 mm |
| Aug | 22.2 °C | +0.7 °C | 100 mm | +22 mm |
| Sep | 16.9 °C | +2.4 °C | 24 mm | -26 mm |
| Oct | 1.2 °C | -4.0 °C | 32 mm | +9 mm |
| Nov | -2.2 °C | +4.8 °C | 25 mm | +8 mm |
| Dec | -15.2 °C | +0.4 °C | 16 mm | +1 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 Zima?
Zima has a dry-winter subarctic climate (Köppen Dwc). Over 1940-2025, the average annual temperature is -0.7 °C and it receives 428 mm of precipitation per year.
What is the hottest day ever recorded in Zima?
The hottest day measured in Zima between 1940 and 2025 was 21 June 1991, reaching 36.3 °C.
What is the coldest day in Zima?
The coldest day measured in Zima between 1940 and 2025 was 8 January 2001, at -51.7 °C.
Does it snow in Zima?
Yes. Zima gets on average 71.0 cm of snow per year and has around 216 frost days.
Has the climate of Zima warmed?
Yes: Zima warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zima?
The wettest day measured in Zima between 1940 and 2025 was 30 July 1980, with 75 mm of rain in 24 hours.
What was the windiest day in Zima?
The windiest day measured in Zima between 1940 and 2025 was 5 January 1979, with winds reaching 41.5 km/h.
What is the warmest month in Zima?
The warmest month in Zima is July (18.7 °C on average); the coldest is January (-22.0 °C).
How much does it rain in Zima?
Zima receives on average 428 mm of precipitation per year, spread over about 91 rainy days.
Is it sunny in Zima?
Zima 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 Zima?
The heaviest 24-hour snowfall measured in Zima between 1940 and 2025 was 26 October 1972, with 11.3 cm.
Are there tropical nights in Zima?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Zima.
What was the most extreme apparent temperature in Zima?
In Zima, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 15 July 2004, and the lowest was -57.0 °C on 8 January 2001.
Compare Zima with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zima