Zaysan climate — normals and trends
Zaysan (Kazakhstan) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.0 °C and it receives 376 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 (21.3 °C on average) and the coldest is January (-14.6 °C). Rainfall peaks in April.
Zaysan averages 182 frost days, 17 hot days (≥ 30 °C) and 88 rainy days per year.
Zaysan has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 192 to 172 per year over the period.
The hottest day of the period reached 39.0 °C (on 9 August 1944) and the coldest -39.9 °C (on 26 February 1951).
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
ZaysanEast Kazakhstan
- coords
- 47.47°, 84.87°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.0°C
Average daily high
9.4°C
Average daily low
-1.3°C
Annual rainfall
376mm
Sunshine / day
9.9h
Mean relative humidity
60%
Average peak wind
12.6km/h
Seasonal range
35.9°C
Frost days (< 0 °C)
182 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
88 d/yr
Annual snowfall
83.3 cm
Average feels-like high
6.4 °C
Average feels-like low
-4.9 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
15.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.17 · 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
39.0 °C
9 August 1944
Coldest day
-39.9 °C
26 February 1951
Wettest day
33 mm
31 July 1957
Windiest day
47.0 km/h
18 April 1998
Strongest gust
101.5 km/h
18 April 1998
Hottest feels-like
39.0 °C
1 August 2008
Coldest feels-like
-45.4 °C
25 February 1951
Snowiest day
16.9 cm
20 February 1958
Sunniest day
15.0 h
31 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -9.1 °C | +1.5 °C | 19 mm | +4 mm |
| Feb | -7.7 °C | +0.5 °C | 2 mm | -13 mm |
| Mar | 2.0 °C | +2.3 °C | 29 mm | +2 mm |
| Apr | 15.7 °C | +3.7 °C | 41 mm | -1 mm |
| May | 21.6 °C | +1.9 °C | 43 mm | +1 mm |
| Jun | 27.5 °C | +2.7 °C | 26 mm | -13 mm |
| Jul | 28.8 °C | +1.9 °C | 13 mm | -24 mm |
| Aug | 24.8 °C | -0.7 °C | 36 mm | +4 mm |
| Sep | 19.6 °C | -0.3 °C | 59 mm | +27 mm |
| Oct | 9.3 °C | -2.1 °C | 39 mm | +1 mm |
| Nov | 1.8 °C | +2.0 °C | 58 mm | +23 mm |
| Dec | -7.1 °C | +1.3 °C | 33 mm | +11 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 Zaysan?
Zaysan has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.0 °C and it receives 376 mm of precipitation per year.
What is the hottest day ever recorded in Zaysan?
The hottest day measured in Zaysan between 1940 and 2025 was 9 August 1944, reaching 39.0 °C.
What is the coldest day in Zaysan?
The coldest day measured in Zaysan between 1940 and 2025 was 26 February 1951, at -39.9 °C.
Does it snow in Zaysan?
Yes. Zaysan gets on average 83.3 cm of snow per year and has around 182 frost days.
Has the climate of Zaysan warmed?
Yes: Zaysan warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zaysan?
The wettest day measured in Zaysan between 1940 and 2025 was 31 July 1957, with 33 mm of rain in 24 hours.
What was the windiest day in Zaysan?
The windiest day measured in Zaysan between 1940 and 2025 was 18 April 1998, with winds reaching 47.0 km/h.
What is the warmest month in Zaysan?
The warmest month in Zaysan is July (21.3 °C on average); the coldest is January (-14.6 °C).
How much does it rain in Zaysan?
Zaysan receives on average 376 mm of precipitation per year, spread over about 88 rainy days.
Is it sunny in Zaysan?
Zaysan gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zaysan?
The heaviest 24-hour snowfall measured in Zaysan between 1940 and 2025 was 20 February 1958, with 16.9 cm.
Are there tropical nights in Zaysan?
Yes: Zaysan has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zaysan?
In Zaysan, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 1 August 2008, and the lowest was -45.4 °C on 25 February 1951.
Compare Zaysan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zaysan