Qaşr-e Shīrīn climate — normals and trends
Qaşr-e Shīrīn (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 22.0 °C and it receives 456 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 (35.6 °C on average) and the coldest is January (8.5 °C). Rainfall peaks in January.
Qaşr-e Shīrīn averages 8 frost days, 178 hot days (≥ 30 °C) and 52 rainy days per year.
Qaşr-e Shīrīn has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 12 to 4 per year over the period.
The hottest day of the period reached 50.1 °C (on 18 July 1978) and the coldest -10.2 °C (on 8 February 1950).
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
Qaşr-e ShīrīnKermanshah Province
- coords
- 34.52°, 45.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.0°C
Average daily high
28.9°C
Average daily low
15.1°C
Annual rainfall
456mm
Sunshine / day
11.0h
Mean relative humidity
43%
Average peak wind
13.9km/h
Seasonal range
27.1°C
Frost days (< 0 °C)
8 d/yr
Hot days (≥ 30 °C)
178 d/yr
Rainy days (≥ 1 mm)
52 d/yr
Annual snowfall
1.0 cm
Average feels-like high
27.3 °C
Average feels-like low
12.7 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
132 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.53 · 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
50.1 °C
18 July 1978
Coldest day
-10.2 °C
8 February 1950
Wettest day
85 mm
29 October 2015
Windiest day
46.8 km/h
27 March 1962
Strongest gust
97.9 km/h
24 November 1992
Hottest feels-like
51.3 °C
28 July 2020
Coldest feels-like
-14.8 °C
8 February 1950
Snowiest day
6.4 cm
6 February 1950
Sunniest day
14.0 h
28 May 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 | 16.4 °C | +2.4 °C | 20 mm | -64 mm |
| Feb | 14.3 °C | -1.6 °C | 57 mm | -14 mm |
| Mar | 22.6 °C | +2.3 °C | 42 mm | -37 mm |
| Apr | 30.0 °C | +3.3 °C | 36 mm | -15 mm |
| May | 38.2 °C | +4.2 °C | 9 mm | -6 mm |
| Jun | 42.1 °C | +2.0 °C | 0 mm | -0 mm |
| Jul | 44.8 °C | +1.5 °C | 0 mm | -0 mm |
| Aug | 45.3 °C | +2.3 °C | 0 mm | -0 mm |
| Sep | 38.8 °C | -0.1 °C | 0 mm | -0 mm |
| Oct | 33.6 °C | +1.8 °C | 0 mm | -15 mm |
| Nov | 26.9 °C | +4.5 °C | 18 mm | -41 mm |
| Dec | 17.2 °C | +1.2 °C | 186 mm | +105 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 Qaşr-e Shīrīn?
Qaşr-e Shīrīn has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 456 mm of precipitation per year.
What is the hottest day ever recorded in Qaşr-e Shīrīn?
The hottest day measured in Qaşr-e Shīrīn between 1940 and 2025 was 18 July 1978, reaching 50.1 °C.
What is the coldest day in Qaşr-e Shīrīn?
The coldest day measured in Qaşr-e Shīrīn between 1940 and 2025 was 8 February 1950, at -10.2 °C.
Does it snow in Qaşr-e Shīrīn?
Almost never: Qaşr-e Shīrīn sees virtually no snow, with about 8 frost days per year.
Has the climate of Qaşr-e Shīrīn warmed?
Yes: Qaşr-e Shīrīn warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Qaşr-e Shīrīn?
The wettest day measured in Qaşr-e Shīrīn between 1940 and 2025 was 29 October 2015, with 85 mm of rain in 24 hours.
What was the windiest day in Qaşr-e Shīrīn?
The windiest day measured in Qaşr-e Shīrīn between 1940 and 2025 was 27 March 1962, with winds reaching 46.8 km/h.
What is the warmest month in Qaşr-e Shīrīn?
The warmest month in Qaşr-e Shīrīn is July (35.6 °C on average); the coldest is January (8.5 °C).
How much does it rain in Qaşr-e Shīrīn?
Qaşr-e Shīrīn receives on average 456 mm of precipitation per year, spread over about 52 rainy days.
Is it sunny in Qaşr-e Shīrīn?
Qaşr-e Shīrīn gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in Qaşr-e Shīrīn?
The heaviest 24-hour snowfall measured in Qaşr-e Shīrīn between 1940 and 2025 was 6 February 1950, with 6.4 cm.
Are there tropical nights in Qaşr-e Shīrīn?
Yes: Qaşr-e Shīrīn has on average 132 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Qaşr-e Shīrīn?
In Qaşr-e Shīrīn, between 1940 and 2025, the highest apparent temperature reached 51.3 °C on 28 July 2020, and the lowest was -14.8 °C on 8 February 1950.
Compare Qaşr-e Shīrīn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Qaşr-e Shīrīn