Kermanshah climate — normals and trends
Kermanshah (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 13.5 °C and it receives 499 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 (0.1 °C). Rainfall peaks in March.
Kermanshah averages 89 frost days, 99 hot days (≥ 30 °C) and 73 rainy days per year.
Kermanshah 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 114 to 64 per year over the period.
The hottest day of the period reached 41.8 °C (on 2 July 2015) and the coldest -29.4 °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
KermanshahKermanshah Province
- coords
- 34.31°, 47.06°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.5°C
Average daily high
20.5°C
Average daily low
6.7°C
Annual rainfall
499mm
Sunshine / day
10.9h
Mean relative humidity
51%
Average peak wind
12.0km/h
Seasonal range
26.9°C
Frost days (< 0 °C)
89 d/yr
Hot days (≥ 30 °C)
99 d/yr
Rainy days (≥ 1 mm)
73 d/yr
Annual snowfall
61.6 cm
Average feels-like high
18.6 °C
Average feels-like low
3.7 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.6 °C
since 1940
+0.4 °C per decade · r² = 0.56 · 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
41.8 °C
2 July 2015
Coldest day
-29.4 °C
20 January 1964
Wettest day
68 mm
3 February 2006
Windiest day
34.4 km/h
15 March 2008
Strongest gust
98.3 km/h
14 March 1971
Hottest feels-like
42.2 °C
27 July 2011
Coldest feels-like
-34.5 °C
20 January 1964
Snowiest day
27.4 cm
19 January 1965
Sunniest day
14.0 h
7 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 | 8.7 °C | +3.1 °C | 23 mm | -45 mm |
| Feb | 7.8 °C | +0.1 °C | 63 mm | -11 mm |
| Mar | 15.6 °C | +3.2 °C | 86 mm | -12 mm |
| Apr | 21.1 °C | +3.1 °C | 71 mm | -6 mm |
| May | 29.0 °C | +5.1 °C | 16 mm | -17 mm |
| Jun | 34.1 °C | +3.2 °C | 0 mm | -1 mm |
| Jul | 37.7 °C | +2.4 °C | 0 mm | +0 mm |
| Aug | 39.3 °C | +4.4 °C | 0 mm | -0 mm |
| Sep | 32.1 °C | +1.6 °C | 0 mm | -1 mm |
| Oct | 26.9 °C | +3.6 °C | 0 mm | -23 mm |
| Nov | 20.0 °C | +5.3 °C | 9 mm | -50 mm |
| Dec | 10.0 °C | +1.6 °C | 92 mm | +27 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 Kermanshah?
Kermanshah has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.5 °C and it receives 499 mm of precipitation per year.
What is the hottest day ever recorded in Kermanshah?
The hottest day measured in Kermanshah between 1940 and 2025 was 2 July 2015, reaching 41.8 °C.
What is the coldest day in Kermanshah?
The coldest day measured in Kermanshah between 1940 and 2025 was 20 January 1964, at -29.4 °C.
Does it snow in Kermanshah?
Yes. Kermanshah gets on average 61.6 cm of snow per year and has around 89 frost days.
Has the climate of Kermanshah warmed?
Yes: Kermanshah warmed by +3.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kermanshah?
The wettest day measured in Kermanshah between 1940 and 2025 was 3 February 2006, with 68 mm of rain in 24 hours.
What was the windiest day in Kermanshah?
The windiest day measured in Kermanshah between 1940 and 2025 was 15 March 2008, with winds reaching 34.4 km/h.
What is the warmest month in Kermanshah?
The warmest month in Kermanshah is July (27.0 °C on average); the coldest is January (0.1 °C).
How much does it rain in Kermanshah?
Kermanshah receives on average 499 mm of precipitation per year, spread over about 73 rainy days.
Is it sunny in Kermanshah?
Kermanshah 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 Kermanshah?
The heaviest 24-hour snowfall measured in Kermanshah between 1940 and 2025 was 19 January 1965, with 27.4 cm.
Are there tropical nights in Kermanshah?
Yes: Kermanshah has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kermanshah?
In Kermanshah, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 27 July 2011, and the lowest was -34.5 °C on 20 January 1964.
Compare Kermanshah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kermanshah