Ferdowsīyeh climate — normals and trends
Ferdowsīyeh (Iran) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 16.4 °C and it receives 280 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 (30.6 °C on average) and the coldest is January (1.5 °C). Rainfall peaks in March.
Ferdowsīyeh averages 67 frost days, 128 hot days (≥ 30 °C) and 54 rainy days per year.
Ferdowsīyeh has warmed by +3.2 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The number of frost days there went from about 92 to 42 per year over the period.
The hottest day of the period reached 44.4 °C (on 16 July 1995) and the coldest -23.1 °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
FerdowsīyehTehran
- coords
- 35.60°, 51.06°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.4°C
Average daily high
22.7°C
Average daily low
10.0°C
Annual rainfall
280mm
Sunshine / day
10.9h
Mean relative humidity
45%
Average peak wind
15.9km/h
Seasonal range
29.1°C
Frost days (< 0 °C)
67 d/yr
Hot days (≥ 30 °C)
128 d/yr
Rainy days (≥ 1 mm)
54 d/yr
Annual snowfall
29.5 cm
Average feels-like high
20.1 °C
Average feels-like low
6.9 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
74 d/yr
Solar radiation
19.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.2 °C
since 1940
+0.4 °C per decade · r² = 0.47 · 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
44.4 °C
16 July 1995
Coldest day
-23.1 °C
21 January 1964
Wettest day
40 mm
25 March 1991
Windiest day
43.3 km/h
25 April 1978
Strongest gust
83.5 km/h
7 April 1964
Hottest feels-like
43.1 °C
19 July 2005
Coldest feels-like
-29.0 °C
21 January 1964
Snowiest day
17.6 cm
3 February 1968
Sunniest day
13.5 h
3 July 1957
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 | 10.2 °C | +3.0 °C | 19 mm | -17 mm |
| Feb | 9.5 °C | -0.2 °C | 35 mm | -2 mm |
| Mar | 18.3 °C | +3.3 °C | 42 mm | -11 mm |
| Apr | 26.6 °C | +4.8 °C | 16 mm | -29 mm |
| May | 33.3 °C | +4.8 °C | 6 mm | -15 mm |
| Jun | 35.5 °C | +0.7 °C | 3 mm | -0 mm |
| Jul | 39.0 °C | +1.3 °C | 0 mm | -1 mm |
| Aug | 38.5 °C | +2.1 °C | 0 mm | -1 mm |
| Sep | 33.2 °C | +1.1 °C | 0 mm | -2 mm |
| Oct | 28.3 °C | +3.8 °C | 0 mm | -13 mm |
| Nov | 20.2 °C | +4.6 °C | 2 mm | -31 mm |
| Dec | 11.1 °C | +1.7 °C | 21 mm | -15 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 Ferdowsīyeh?
Ferdowsīyeh has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 16.4 °C and it receives 280 mm of precipitation per year.
What is the hottest day ever recorded in Ferdowsīyeh?
The hottest day measured in Ferdowsīyeh between 1940 and 2025 was 16 July 1995, reaching 44.4 °C.
What is the coldest day in Ferdowsīyeh?
The coldest day measured in Ferdowsīyeh between 1940 and 2025 was 21 January 1964, at -23.1 °C.
Does it snow in Ferdowsīyeh?
Yes. Ferdowsīyeh gets on average 29.5 cm of snow per year and has around 67 frost days.
Has the climate of Ferdowsīyeh warmed?
Yes: Ferdowsīyeh warmed by +3.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ferdowsīyeh?
The wettest day measured in Ferdowsīyeh between 1940 and 2025 was 25 March 1991, with 40 mm of rain in 24 hours.
What was the windiest day in Ferdowsīyeh?
The windiest day measured in Ferdowsīyeh between 1940 and 2025 was 25 April 1978, with winds reaching 43.3 km/h.
What is the warmest month in Ferdowsīyeh?
The warmest month in Ferdowsīyeh is July (30.6 °C on average); the coldest is January (1.5 °C).
How much does it rain in Ferdowsīyeh?
Ferdowsīyeh receives on average 280 mm of precipitation per year, spread over about 54 rainy days.
Is it sunny in Ferdowsīyeh?
Ferdowsīyeh 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 Ferdowsīyeh?
The heaviest 24-hour snowfall measured in Ferdowsīyeh between 1940 and 2025 was 3 February 1968, with 17.6 cm.
Are there tropical nights in Ferdowsīyeh?
Yes: Ferdowsīyeh has on average 74 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ferdowsīyeh?
In Ferdowsīyeh, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 19 July 2005, and the lowest was -29.0 °C on 21 January 1964.
Compare Ferdowsīyeh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ferdowsīyeh