Kalāleh climate — normals and trends
Kalāleh (Iran) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 417 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 (27.4 °C on average) and the coldest is January (4.8 °C). Rainfall peaks in March.
Kalāleh averages 40 frost days, 101 hot days (≥ 30 °C) and 68 rainy days per year.
Kalāleh has warmed by +3.2 °C between 1940 and 2025, or +0.38 °C per decade. This trend is statistically significant.
The number of frost days there went from about 58 to 22 per year over the period.
The hottest day of the period reached 46.1 °C (on 5 July 2021) and the coldest -21.8 °C (on 21 December 1948).
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
KalālehGolestan
- coords
- 37.38°, 55.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
22.6°C
Average daily low
10.6°C
Annual rainfall
417mm
Sunshine / day
9.9h
Mean relative humidity
63%
Average peak wind
10.5km/h
Seasonal range
22.6°C
Frost days (< 0 °C)
40 d/yr
Hot days (≥ 30 °C)
101 d/yr
Rainy days (≥ 1 mm)
68 d/yr
Annual snowfall
28.6 cm
Average feels-like high
22.2 °C
Average feels-like low
9.3 °C
Average peak gust
26.9 km/h
Tropical nights (≥ 20 °C)
61 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.2 °C
since 1940
+0.4 °C per decade · r² = 0.49 · 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
46.1 °C
5 July 2021
Coldest day
-21.8 °C
21 December 1948
Wettest day
86 mm
18 March 2019
Windiest day
32.7 km/h
18 March 2019
Strongest gust
80.3 km/h
18 March 2019
Hottest feels-like
47.2 °C
5 July 2021
Coldest feels-like
-27.1 °C
21 December 1948
Snowiest day
15.9 cm
3 February 2012
Sunniest day
13.9 h
19 June 1941
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 | 13.2 °C | +2.2 °C | 9 mm | -32 mm |
| Feb | 10.6 °C | -1.5 °C | 46 mm | -5 mm |
| Mar | 19.1 °C | +3.5 °C | 37 mm | -29 mm |
| Apr | 25.4 °C | +4.1 °C | 35 mm | -15 mm |
| May | 30.1 °C | +3.3 °C | 12 mm | -21 mm |
| Jun | 32.4 °C | +0.9 °C | 9 mm | -8 mm |
| Jul | 36.1 °C | +2.3 °C | 7 mm | -11 mm |
| Aug | 37.3 °C | +3.7 °C | 13 mm | -11 mm |
| Sep | 31.3 °C | +1.4 °C | 28 mm | +5 mm |
| Oct | 27.9 °C | +3.5 °C | 12 mm | -14 mm |
| Nov | 22.7 °C | +4.5 °C | 2 mm | -31 mm |
| Dec | 15.1 °C | +2.1 °C | 27 mm | -7 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 Kalāleh?
Kalāleh has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 417 mm of precipitation per year.
What is the hottest day ever recorded in Kalāleh?
The hottest day measured in Kalāleh between 1940 and 2025 was 5 July 2021, reaching 46.1 °C.
What is the coldest day in Kalāleh?
The coldest day measured in Kalāleh between 1940 and 2025 was 21 December 1948, at -21.8 °C.
Does it snow in Kalāleh?
Yes. Kalāleh gets on average 28.6 cm of snow per year and has around 40 frost days.
Has the climate of Kalāleh warmed?
Yes: Kalāleh warmed by +3.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kalāleh?
The wettest day measured in Kalāleh between 1940 and 2025 was 18 March 2019, with 86 mm of rain in 24 hours.
What was the windiest day in Kalāleh?
The windiest day measured in Kalāleh between 1940 and 2025 was 18 March 2019, with winds reaching 32.7 km/h.
What is the warmest month in Kalāleh?
The warmest month in Kalāleh is July (27.4 °C on average); the coldest is January (4.8 °C).
How much does it rain in Kalāleh?
Kalāleh receives on average 417 mm of precipitation per year, spread over about 68 rainy days.
Is it sunny in Kalāleh?
Kalāleh 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 Kalāleh?
The heaviest 24-hour snowfall measured in Kalāleh between 1940 and 2025 was 3 February 2012, with 15.9 cm.
Are there tropical nights in Kalāleh?
Yes: Kalāleh has on average 61 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kalāleh?
In Kalāleh, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 5 July 2021, and the lowest was -27.1 °C on 21 December 1948.
Compare Kalāleh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kalāleh