Āz̄arshahr climate — normals and trends
Āz̄arshahr (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 11.2 °C and it receives 370 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 (25.0 °C on average) and the coldest is January (-2.9 °C). Rainfall peaks in April.
Āz̄arshahr averages 111 frost days, 59 hot days (≥ 30 °C) and 75 rainy days per year.
Āz̄arshahr has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 129 to 93 per year over the period.
The hottest day of the period reached 39.2 °C (on 9 July 2011) and the coldest -23.8 °C (on 3 March 1985).
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
Āz̄arshahrEast Azerbaijan Province
- coords
- 37.76°, 45.98°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.2°C
Average daily high
17.0°C
Average daily low
5.8°C
Annual rainfall
370mm
Sunshine / day
11.0h
Mean relative humidity
51%
Average peak wind
16.1km/h
Seasonal range
27.9°C
Frost days (< 0 °C)
111 d/yr
Hot days (≥ 30 °C)
59 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
60.9 cm
Average feels-like high
14.3 °C
Average feels-like low
2.4 °C
Average peak gust
35.7 km/h
Tropical nights (≥ 20 °C)
14 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.48 · 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
39.2 °C
9 July 2011
Coldest day
-23.8 °C
3 March 1985
Wettest day
45 mm
12 May 1996
Windiest day
49.8 km/h
21 April 2015
Strongest gust
114.1 km/h
9 November 1956
Hottest feels-like
39.0 °C
2 July 2018
Coldest feels-like
-29.0 °C
3 March 1985
Snowiest day
16.2 cm
9 March 1991
Sunniest day
14.0 h
18 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 | 4.3 °C | +2.3 °C | 5 mm | -23 mm |
| Feb | 2.7 °C | -1.3 °C | 43 mm | +8 mm |
| Mar | 13.6 °C | +4.5 °C | 36 mm | -24 mm |
| Apr | 18.8 °C | +3.3 °C | 48 mm | -19 mm |
| May | 24.9 °C | +3.6 °C | 43 mm | -15 mm |
| Jun | 29.2 °C | +1.5 °C | 17 mm | -3 mm |
| Jul | 33.3 °C | +1.5 °C | 7 mm | -1 mm |
| Aug | 35.4 °C | +4.0 °C | 0 mm | -6 mm |
| Sep | 27.1 °C | +0.5 °C | 5 mm | -1 mm |
| Oct | 21.9 °C | +2.9 °C | 5 mm | -16 mm |
| Nov | 14.6 °C | +3.8 °C | 9 mm | -24 mm |
| Dec | 6.3 °C | +1.7 °C | 51 mm | +22 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 Āz̄arshahr?
Āz̄arshahr has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 11.2 °C and it receives 370 mm of precipitation per year.
What is the hottest day ever recorded in Āz̄arshahr?
The hottest day measured in Āz̄arshahr between 1940 and 2025 was 9 July 2011, reaching 39.2 °C.
What is the coldest day in Āz̄arshahr?
The coldest day measured in Āz̄arshahr between 1940 and 2025 was 3 March 1985, at -23.8 °C.
Does it snow in Āz̄arshahr?
Yes. Āz̄arshahr gets on average 60.9 cm of snow per year and has around 111 frost days.
Has the climate of Āz̄arshahr warmed?
Yes: Āz̄arshahr warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Āz̄arshahr?
The wettest day measured in Āz̄arshahr between 1940 and 2025 was 12 May 1996, with 45 mm of rain in 24 hours.
What was the windiest day in Āz̄arshahr?
The windiest day measured in Āz̄arshahr between 1940 and 2025 was 21 April 2015, with winds reaching 49.8 km/h.
What is the warmest month in Āz̄arshahr?
The warmest month in Āz̄arshahr is July (25.0 °C on average); the coldest is January (-2.9 °C).
How much does it rain in Āz̄arshahr?
Āz̄arshahr receives on average 370 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Āz̄arshahr?
Āz̄arshahr gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in Āz̄arshahr?
The heaviest 24-hour snowfall measured in Āz̄arshahr between 1940 and 2025 was 9 March 1991, with 16.2 cm.
Are there tropical nights in Āz̄arshahr?
Yes: Āz̄arshahr has on average 14 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Āz̄arshahr?
In Āz̄arshahr, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 2 July 2018, and the lowest was -29.0 °C on 3 March 1985.
Compare Āz̄arshahr with another city
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Nearby cities
The climate around Āz̄arshahr