Aleshtar climate — normals and trends
Aleshtar (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 12.1 °C and it receives 520 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 (25.7 °C on average) and the coldest is January (-2.0 °C). Rainfall peaks in March.
Aleshtar averages 106 frost days, 81 hot days (≥ 30 °C) and 70 rainy days per year.
Aleshtar has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 126 to 86 per year over the period.
The hottest day of the period reached 39.7 °C (on 13 July 2023) and the coldest -27.0 °C (on 20 January 1964).
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
AleshtarLorestan Province
- coords
- 33.86°, 48.26°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.1°C
Average daily high
18.5°C
Average daily low
5.1°C
Annual rainfall
520mm
Sunshine / day
10.8h
Mean relative humidity
50%
Average peak wind
11.4km/h
Seasonal range
27.7°C
Frost days (< 0 °C)
106 d/yr
Hot days (≥ 30 °C)
81 d/yr
Rainy days (≥ 1 mm)
70 d/yr
Annual snowfall
117.0 cm
Average feels-like high
16.4 °C
Average feels-like low
2.0 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
20.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °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
39.7 °C
13 July 2023
Coldest day
-27.0 °C
20 January 1964
Wettest day
78 mm
1 April 2019
Windiest day
32.4 km/h
15 March 2008
Strongest gust
122.8 km/h
25 November 1992
Hottest feels-like
39.7 °C
12 August 2022
Coldest feels-like
-32.0 °C
20 January 1964
Snowiest day
34.4 cm
31 January 2023
Sunniest day
13.9 h
21 June 1958
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 | 6.4 °C | +3.2 °C | 33 mm | -51 mm |
| Feb | 4.4 °C | -0.5 °C | 89 mm | +4 mm |
| Mar | 13.0 °C | +3.2 °C | 79 mm | -25 mm |
| Apr | 19.7 °C | +3.7 °C | 58 mm | -11 mm |
| May | 28.2 °C | +5.9 °C | 9 mm | -17 mm |
| Jun | 32.6 °C | +3.1 °C | 1 mm | -0 mm |
| Jul | 36.0 °C | +2.5 °C | 1 mm | +0 mm |
| Aug | 37.0 °C | +4.1 °C | 0 mm | -0 mm |
| Sep | 30.8 °C | +2.1 °C | 0 mm | -1 mm |
| Oct | 25.5 °C | +4.0 °C | 0 mm | -16 mm |
| Nov | 18.9 °C | +5.6 °C | 7 mm | -47 mm |
| Dec | 8.0 °C | +1.4 °C | 101 mm | +21 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 Aleshtar?
Aleshtar has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 12.1 °C and it receives 520 mm of precipitation per year.
What is the hottest day ever recorded in Aleshtar?
The hottest day measured in Aleshtar between 1940 and 2025 was 13 July 2023, reaching 39.7 °C.
What is the coldest day in Aleshtar?
The coldest day measured in Aleshtar between 1940 and 2025 was 20 January 1964, at -27.0 °C.
Does it snow in Aleshtar?
Yes. Aleshtar gets on average 117.0 cm of snow per year and has around 106 frost days.
Has the climate of Aleshtar warmed?
Yes: Aleshtar warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aleshtar?
The wettest day measured in Aleshtar between 1940 and 2025 was 1 April 2019, with 78 mm of rain in 24 hours.
What was the windiest day in Aleshtar?
The windiest day measured in Aleshtar between 1940 and 2025 was 15 March 2008, with winds reaching 32.4 km/h.
What is the warmest month in Aleshtar?
The warmest month in Aleshtar is July (25.7 °C on average); the coldest is January (-2.0 °C).
How much does it rain in Aleshtar?
Aleshtar receives on average 520 mm of precipitation per year, spread over about 70 rainy days.
Is it sunny in Aleshtar?
Aleshtar gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aleshtar?
The heaviest 24-hour snowfall measured in Aleshtar between 1940 and 2025 was 31 January 2023, with 34.4 cm.
Are there tropical nights in Aleshtar?
Yes: Aleshtar has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aleshtar?
In Aleshtar, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 12 August 2022, and the lowest was -32.0 °C on 20 January 1964.
Compare Aleshtar with another city
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Nearby cities
The climate around Aleshtar