Aznā climate — normals and trends
Aznā (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 424 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 (24.5 °C on average) and the coldest is January (-5.2 °C). Rainfall peaks in March.
Aznā averages 129 frost days, 59 hot days (≥ 30 °C) and 63 rainy days per year.
Aznā 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 148 to 110 per year over the period.
The hottest day of the period reached 37.8 °C (on 13 July 2023) and the coldest -28.8 °C (on 7 January 1942).
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
AznāLorestan Province
- coords
- 33.46°, 49.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
16.5°C
Average daily low
4.2°C
Annual rainfall
424mm
Sunshine / day
10.9h
Mean relative humidity
50%
Average peak wind
13.6km/h
Seasonal range
29.7°C
Frost days (< 0 °C)
129 d/yr
Hot days (≥ 30 °C)
59 d/yr
Rainy days (≥ 1 mm)
63 d/yr
Annual snowfall
159.7 cm
Average feels-like high
13.8 °C
Average feels-like low
1.0 °C
Average peak gust
36.7 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
20.8 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
37.8 °C
13 July 2023
Coldest day
-28.8 °C
7 January 1942
Wettest day
80 mm
12 March 2005
Windiest day
43.2 km/h
7 April 1964
Strongest gust
104.4 km/h
21 April 2018
Hottest feels-like
37.0 °C
19 August 2025
Coldest feels-like
-33.1 °C
7 January 1942
Snowiest day
36.1 cm
18 February 2021
Sunniest day
13.6 h
24 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 | 5.3 °C | +5.6 °C | 25 mm | -40 mm |
| Feb | 3.4 °C | +1.8 °C | 58 mm | -7 mm |
| Mar | 12.2 °C | +5.1 °C | 92 mm | +8 mm |
| Apr | 18.6 °C | +4.3 °C | 70 mm | +13 mm |
| May | 26.8 °C | +5.8 °C | 7 mm | -16 mm |
| Jun | 31.1 °C | +3.0 °C | 3 mm | +1 mm |
| Jul | 34.1 °C | +2.3 °C | 1 mm | +0 mm |
| Aug | 34.3 °C | +3.3 °C | 0 mm | -1 mm |
| Sep | 29.5 °C | +2.3 °C | 0 mm | -1 mm |
| Oct | 24.3 °C | +4.3 °C | 0 mm | -14 mm |
| Nov | 17.2 °C | +5.4 °C | 3 mm | -47 mm |
| Dec | 6.2 °C | +2.3 °C | 86 mm | +23 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 Aznā?
Aznā has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 424 mm of precipitation per year.
What is the hottest day ever recorded in Aznā?
The hottest day measured in Aznā between 1940 and 2025 was 13 July 2023, reaching 37.8 °C.
What is the coldest day in Aznā?
The coldest day measured in Aznā between 1940 and 2025 was 7 January 1942, at -28.8 °C.
Does it snow in Aznā?
Yes. Aznā gets on average 159.7 cm of snow per year and has around 129 frost days.
Has the climate of Aznā warmed?
Yes: Aznā warmed by +3.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aznā?
The wettest day measured in Aznā between 1940 and 2025 was 12 March 2005, with 80 mm of rain in 24 hours.
What was the windiest day in Aznā?
The windiest day measured in Aznā between 1940 and 2025 was 7 April 1964, with winds reaching 43.2 km/h.
What is the warmest month in Aznā?
The warmest month in Aznā is July (24.5 °C on average); the coldest is January (-5.2 °C).
How much does it rain in Aznā?
Aznā receives on average 424 mm of precipitation per year, spread over about 63 rainy days.
Is it sunny in Aznā?
Aznā gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aznā?
The heaviest 24-hour snowfall measured in Aznā between 1940 and 2025 was 18 February 2021, with 36.1 cm.
Are there tropical nights in Aznā?
Yes: Aznā has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aznā?
In Aznā, between 1940 and 2025, the highest apparent temperature reached 37.0 °C on 19 August 2025, and the lowest was -33.1 °C on 7 January 1942.
Compare Aznā with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aznā