Koson climate — normals and trends
Koson (Uzbekistan) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 235 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 (30.3 °C on average) and the coldest is January (2.7 °C). Rainfall peaks in March.
Koson averages 60 frost days, 133 hot days (≥ 30 °C) and 46 rainy days per year.
No statistically significant temperature trend emerges for Koson between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 47.7 °C (on 4 July 1942) and the coldest -27.9 °C (on 7 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
KosonQashqadaryo
- coords
- 39.04°, 65.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
23.3°C
Average daily low
10.0°C
Annual rainfall
235mm
Sunshine / day
10.3h
Mean relative humidity
52%
Average peak wind
15.1km/h
Seasonal range
27.6°C
Frost days (< 0 °C)
60 d/yr
Hot days (≥ 30 °C)
133 d/yr
Rainy days (≥ 1 mm)
46 d/yr
Annual snowfall
17.6 cm
Average feels-like high
21.3 °C
Average feels-like low
7.3 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
64 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
47.7 °C
4 July 1942
Coldest day
-27.9 °C
7 January 1969
Wettest day
46 mm
9 April 1949
Windiest day
45.9 km/h
20 February 2008
Strongest gust
90.7 km/h
20 February 2008
Hottest feels-like
47.7 °C
30 July 1983
Coldest feels-like
-33.2 °C
7 January 1969
Snowiest day
14.4 cm
3 February 1996
Sunniest day
14.2 h
24 June 1946
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 | 9.2 °C | +1.0 °C | 13 mm | -21 mm |
| Feb | 11.3 °C | +0.3 °C | 45 mm | +8 mm |
| Mar | 20.6 °C | +3.9 °C | 23 mm | -30 mm |
| Apr | 30.0 °C | +6.0 °C | 28 mm | -10 mm |
| May | 35.4 °C | +4.8 °C | 1 mm | -13 mm |
| Jun | 37.9 °C | +2.0 °C | 0 mm | -2 mm |
| Jul | 41.0 °C | +3.4 °C | 0 mm | -1 mm |
| Aug | 38.4 °C | +2.8 °C | 0 mm | -0 mm |
| Sep | 32.5 °C | +1.9 °C | 0 mm | -1 mm |
| Oct | 27.1 °C | +3.8 °C | 1 mm | -8 mm |
| Nov | 18.5 °C | +2.6 °C | 9 mm | -11 mm |
| Dec | 12.7 °C | +2.9 °C | 47 mm | +20 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 Koson?
Koson has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 235 mm of precipitation per year.
What is the hottest day ever recorded in Koson?
The hottest day measured in Koson between 1940 and 2025 was 4 July 1942, reaching 47.7 °C.
What is the coldest day in Koson?
The coldest day measured in Koson between 1940 and 2025 was 7 January 1969, at -27.9 °C.
Does it snow in Koson?
Yes. Koson gets on average 17.6 cm of snow per year and has around 60 frost days.
Has the climate of Koson warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Koson.
What is the wettest day in Koson?
The wettest day measured in Koson between 1940 and 2025 was 9 April 1949, with 46 mm of rain in 24 hours.
What was the windiest day in Koson?
The windiest day measured in Koson between 1940 and 2025 was 20 February 2008, with winds reaching 45.9 km/h.
What is the warmest month in Koson?
The warmest month in Koson is July (30.3 °C on average); the coldest is January (2.7 °C).
How much does it rain in Koson?
Koson receives on average 235 mm of precipitation per year, spread over about 46 rainy days.
Is it sunny in Koson?
Koson gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
What is the biggest single-day snowfall in Koson?
The heaviest 24-hour snowfall measured in Koson between 1940 and 2025 was 3 February 1996, with 14.4 cm.
Are there tropical nights in Koson?
Yes: Koson has on average 64 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Koson?
In Koson, between 1940 and 2025, the highest apparent temperature reached 47.7 °C on 30 July 1983, and the lowest was -33.2 °C on 7 January 1969.
Compare Koson with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Koson