Alzamay climate — normals and trends
Alzamay (Russia) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 0.0 °C and it receives 503 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 (18.4 °C on average) and the coldest is January (-19.3 °C). Rainfall peaks in July.
Alzamay averages 211 frost days, 4 hot days (≥ 30 °C) and 115 rainy days per year.
Alzamay has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 218 to 204 per year over the period.
The hottest day of the period reached 37.7 °C (on 12 August 2002) and the coldest -49.3 °C (on 8 January 1961).
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
AlzamayIrkutsk Oblast
- coords
- 55.56°, 98.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.0°C
Average daily high
5.3°C
Average daily low
-5.2°C
Annual rainfall
503mm
Sunshine / day
8.3h
Mean relative humidity
71%
Average peak wind
14.8km/h
Seasonal range
37.7°C
Frost days (< 0 °C)
211 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
106.7 cm
Average feels-like high
1.9 °C
Average feels-like low
-8.9 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.35 · 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
37.7 °C
12 August 2002
Coldest day
-49.3 °C
8 January 1961
Wettest day
75 mm
23 July 2024
Windiest day
42.3 km/h
22 May 1985
Strongest gust
101.9 km/h
22 May 1985
Hottest feels-like
38.2 °C
12 August 2002
Coldest feels-like
-54.3 °C
8 January 1961
Snowiest day
15.7 cm
24 November 1971
Sunniest day
17.0 h
15 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 | -7.5 °C | +7.2 °C | 19 mm | +5 mm |
| Feb | -8.3 °C | +2.0 °C | 26 mm | +13 mm |
| Mar | 3.0 °C | +4.4 °C | 15 mm | -2 mm |
| Apr | 10.5 °C | +3.5 °C | 49 mm | +16 mm |
| May | 16.7 °C | +1.6 °C | 38 mm | -16 mm |
| Jun | 24.6 °C | +2.8 °C | 71 mm | +4 mm |
| Jul | 24.6 °C | +0.7 °C | 27 mm | -56 mm |
| Aug | 22.2 °C | +1.1 °C | 74 mm | -1 mm |
| Sep | 16.5 °C | +2.4 °C | 39 mm | -17 mm |
| Oct | 2.2 °C | -3.1 °C | 32 mm | -4 mm |
| Nov | -1.4 °C | +4.0 °C | 49 mm | +20 mm |
| Dec | -10.7 °C | +2.3 °C | 29 mm | +5 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 Alzamay?
Alzamay has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 0.0 °C and it receives 503 mm of precipitation per year.
What is the hottest day ever recorded in Alzamay?
The hottest day measured in Alzamay between 1940 and 2025 was 12 August 2002, reaching 37.7 °C.
What is the coldest day in Alzamay?
The coldest day measured in Alzamay between 1940 and 2025 was 8 January 1961, at -49.3 °C.
Does it snow in Alzamay?
Yes. Alzamay gets on average 106.7 cm of snow per year and has around 211 frost days.
Has the climate of Alzamay warmed?
Yes: Alzamay warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Alzamay?
The wettest day measured in Alzamay between 1940 and 2025 was 23 July 2024, with 75 mm of rain in 24 hours.
What was the windiest day in Alzamay?
The windiest day measured in Alzamay between 1940 and 2025 was 22 May 1985, with winds reaching 42.3 km/h.
What is the warmest month in Alzamay?
The warmest month in Alzamay is July (18.4 °C on average); the coldest is January (-19.3 °C).
How much does it rain in Alzamay?
Alzamay receives on average 503 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Alzamay?
Alzamay gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Alzamay?
The heaviest 24-hour snowfall measured in Alzamay between 1940 and 2025 was 24 November 1971, with 15.7 cm.
Are there tropical nights in Alzamay?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Alzamay.
What was the most extreme apparent temperature in Alzamay?
In Alzamay, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 12 August 2002, and the lowest was -54.3 °C on 8 January 1961.
Compare Alzamay with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alzamay