Māhdāsht climate — normals and trends
Māhdāsht (Iran) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 14.4 °C and it receives 277 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 (28.2 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in March.
Māhdāsht averages 84 frost days, 107 hot days (≥ 30 °C) and 55 rainy days per year.
Māhdāsht has warmed by +3.1 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 110 to 58 per year over the period.
The hottest day of the period reached 42.3 °C (on 16 July 1995) and the coldest -23.2 °C (on 21 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
MāhdāshtTehran
- coords
- 35.73°, 50.81°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.4°C
Average daily high
20.7°C
Average daily low
8.3°C
Annual rainfall
277mm
Sunshine / day
10.9h
Mean relative humidity
46%
Average peak wind
13.4km/h
Seasonal range
28.3°C
Frost days (< 0 °C)
84 d/yr
Hot days (≥ 30 °C)
107 d/yr
Rainy days (≥ 1 mm)
55 d/yr
Annual snowfall
38.6 cm
Average feels-like high
18.3 °C
Average feels-like low
5.3 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.46 · 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
42.3 °C
16 July 1995
Coldest day
-23.2 °C
21 January 1964
Wettest day
34 mm
25 February 2020
Windiest day
37.4 km/h
7 April 1964
Strongest gust
80.6 km/h
7 April 1964
Hottest feels-like
40.8 °C
19 July 2005
Coldest feels-like
-28.6 °C
21 January 1964
Snowiest day
15.0 cm
27 December 1943
Sunniest day
13.6 h
28 June 2022
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 | 8.5 °C | +3.2 °C | 16 mm | -19 mm |
| Feb | 7.6 °C | +0.1 °C | 35 mm | -4 mm |
| Mar | 16.4 °C | +3.6 °C | 33 mm | -20 mm |
| Apr | 24.0 °C | +4.5 °C | 17 mm | -26 mm |
| May | 30.9 °C | +4.8 °C | 8 mm | -11 mm |
| Jun | 33.4 °C | +0.8 °C | 2 mm | -1 mm |
| Jul | 36.9 °C | +1.2 °C | 0 mm | -1 mm |
| Aug | 36.8 °C | +2.2 °C | 0 mm | -1 mm |
| Sep | 31.2 °C | +1.1 °C | 0 mm | -2 mm |
| Oct | 26.3 °C | +3.7 °C | 0 mm | -15 mm |
| Nov | 18.6 °C | +4.7 °C | 1 mm | -31 mm |
| Dec | 9.7 °C | +1.9 °C | 32 mm | -3 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 Māhdāsht?
Māhdāsht has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 14.4 °C and it receives 277 mm of precipitation per year.
What is the hottest day ever recorded in Māhdāsht?
The hottest day measured in Māhdāsht between 1940 and 2025 was 16 July 1995, reaching 42.3 °C.
What is the coldest day in Māhdāsht?
The coldest day measured in Māhdāsht between 1940 and 2025 was 21 January 1964, at -23.2 °C.
Does it snow in Māhdāsht?
Yes. Māhdāsht gets on average 38.6 cm of snow per year and has around 84 frost days.
Has the climate of Māhdāsht warmed?
Yes: Māhdāsht warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Māhdāsht?
The wettest day measured in Māhdāsht between 1940 and 2025 was 25 February 2020, with 34 mm of rain in 24 hours.
What was the windiest day in Māhdāsht?
The windiest day measured in Māhdāsht between 1940 and 2025 was 7 April 1964, with winds reaching 37.4 km/h.
What is the warmest month in Māhdāsht?
The warmest month in Māhdāsht is July (28.2 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Māhdāsht?
Māhdāsht receives on average 277 mm of precipitation per year, spread over about 55 rainy days.
Is it sunny in Māhdāsht?
Māhdāsht 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 Māhdāsht?
The heaviest 24-hour snowfall measured in Māhdāsht between 1940 and 2025 was 27 December 1943, with 15.0 cm.
Are there tropical nights in Māhdāsht?
Yes: Māhdāsht has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Māhdāsht?
In Māhdāsht, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 19 July 2005, and the lowest was -28.6 °C on 21 January 1964.
Compare Māhdāsht with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Māhdāsht