Şaḩneh climate — normals and trends
Şaḩneh (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 12.8 °C and it receives 459 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 (27.0 °C on average) and the coldest is January (-1.7 °C). Rainfall peaks in March.
Şaḩneh averages 97 frost days, 93 hot days (≥ 30 °C) and 70 rainy days per year.
Şaḩneh has warmed by +3.6 °C between 1940 and 2025, or +0.42 °C per decade. This trend is statistically significant.
The number of frost days there went from about 122 to 72 per year over the period.
The hottest day of the period reached 40.8 °C (on 25 July 2013) and the coldest -27.8 °C (on 31 December 1948).
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
ŞaḩnehKermanshah Province
- coords
- 34.48°, 47.69°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.8°C
Average daily high
19.3°C
Average daily low
6.3°C
Annual rainfall
459mm
Sunshine / day
10.9h
Mean relative humidity
49%
Average peak wind
11.3km/h
Seasonal range
28.7°C
Frost days (< 0 °C)
97 d/yr
Hot days (≥ 30 °C)
93 d/yr
Rainy days (≥ 1 mm)
70 d/yr
Annual snowfall
91.1 cm
Average feels-like high
17.0 °C
Average feels-like low
3.5 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
15 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.6 °C
since 1940
+0.4 °C per decade · r² = 0.55 · 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
40.8 °C
25 July 2013
Coldest day
-27.8 °C
31 December 1948
Wettest day
63 mm
25 February 2020
Windiest day
35.7 km/h
7 April 1964
Strongest gust
102.2 km/h
25 November 1992
Hottest feels-like
40.4 °C
12 August 2022
Coldest feels-like
-32.6 °C
31 December 1948
Snowiest day
27.0 cm
19 February 1953
Sunniest day
14.0 h
13 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 | 7.2 °C | +3.8 °C | 21 mm | -39 mm |
| Feb | 6.6 °C | +1.1 °C | 54 mm | -13 mm |
| Mar | 14.7 °C | +4.0 °C | 103 mm | +13 mm |
| Apr | 20.4 °C | +3.4 °C | 76 mm | +3 mm |
| May | 28.5 °C | +5.4 °C | 20 mm | -13 mm |
| Jun | 33.3 °C | +2.8 °C | 1 mm | -1 mm |
| Jul | 37.0 °C | +2.3 °C | 0 mm | +0 mm |
| Aug | 37.9 °C | +3.7 °C | 0 mm | -0 mm |
| Sep | 31.2 °C | +1.5 °C | 0 mm | -1 mm |
| Oct | 26.1 °C | +3.9 °C | 0 mm | -22 mm |
| Nov | 19.0 °C | +5.5 °C | 2 mm | -50 mm |
| Dec | 8.9 °C | +2.2 °C | 78 mm | +18 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 Şaḩneh?
Şaḩneh has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 12.8 °C and it receives 459 mm of precipitation per year.
What is the hottest day ever recorded in Şaḩneh?
The hottest day measured in Şaḩneh between 1940 and 2025 was 25 July 2013, reaching 40.8 °C.
What is the coldest day in Şaḩneh?
The coldest day measured in Şaḩneh between 1940 and 2025 was 31 December 1948, at -27.8 °C.
Does it snow in Şaḩneh?
Yes. Şaḩneh gets on average 91.1 cm of snow per year and has around 97 frost days.
Has the climate of Şaḩneh warmed?
Yes: Şaḩneh warmed by +3.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Şaḩneh?
The wettest day measured in Şaḩneh between 1940 and 2025 was 25 February 2020, with 63 mm of rain in 24 hours.
What was the windiest day in Şaḩneh?
The windiest day measured in Şaḩneh between 1940 and 2025 was 7 April 1964, with winds reaching 35.7 km/h.
What is the warmest month in Şaḩneh?
The warmest month in Şaḩneh is July (27.0 °C on average); the coldest is January (-1.7 °C).
How much does it rain in Şaḩneh?
Şaḩneh receives on average 459 mm of precipitation per year, spread over about 70 rainy days.
Is it sunny in Şaḩneh?
Şaḩneh 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 Şaḩneh?
The heaviest 24-hour snowfall measured in Şaḩneh between 1940 and 2025 was 19 February 1953, with 27.0 cm.
Are there tropical nights in Şaḩneh?
Yes: Şaḩneh has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Şaḩneh?
In Şaḩneh, between 1940 and 2025, the highest apparent temperature reached 40.4 °C on 12 August 2022, and the lowest was -32.6 °C on 31 December 1948.
Compare Şaḩneh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Şaḩneh