Harsīn climate — normals and trends
Harsīn (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 13.2 °C and it receives 518 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 (27.2 °C on average) and the coldest is January (-1.1 °C). Rainfall peaks in March.
Harsīn averages 91 frost days, 94 hot days (≥ 30 °C) and 74 rainy days per year.
Harsīn has warmed by +3.5 °C between 1940 and 2025, or +0.41 °C per decade. This trend is statistically significant.
The number of frost days there went from about 115 to 67 per year over the period.
The hottest day of the period reached 41.0 °C (on 20 July 2019) 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
HarsīnKermanshah Province
- coords
- 34.27°, 47.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.2°C
Average daily high
19.7°C
Average daily low
6.7°C
Annual rainfall
518mm
Sunshine / day
10.9h
Mean relative humidity
49%
Average peak wind
11.3km/h
Seasonal range
28.3°C
Frost days (< 0 °C)
91 d/yr
Hot days (≥ 30 °C)
94 d/yr
Rainy days (≥ 1 mm)
74 d/yr
Annual snowfall
89.0 cm
Average feels-like high
17.6 °C
Average feels-like low
3.9 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
17 d/yr
Solar radiation
20.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.5 °C
since 1940
+0.4 °C per decade · r² = 0.54 · 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
41.0 °C
20 July 2019
Coldest day
-27.8 °C
31 December 1948
Wettest day
62 mm
28 January 2019
Windiest day
34.5 km/h
15 March 2008
Strongest gust
100.1 km/h
14 March 1971
Hottest feels-like
41.2 °C
12 August 2022
Coldest feels-like
-32.7 °C
31 December 1948
Snowiest day
28.9 cm
19 February 1953
Sunniest day
14.0 h
10 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 | 7.7 °C | +3.6 °C | 29 mm | -42 mm |
| Feb | 7.1 °C | +0.9 °C | 62 mm | -15 mm |
| Mar | 14.9 °C | +3.7 °C | 114 mm | +13 mm |
| Apr | 20.6 °C | +3.3 °C | 80 mm | +0 mm |
| May | 28.7 °C | +5.4 °C | 18 mm | -16 mm |
| Jun | 33.7 °C | +3.2 °C | 1 mm | -1 mm |
| Jul | 37.3 °C | +2.4 °C | 0 mm | +0 mm |
| Aug | 38.5 °C | +4.1 °C | 0 mm | -0 mm |
| Sep | 31.6 °C | +1.6 °C | 0 mm | -1 mm |
| Oct | 26.4 °C | +3.8 °C | 0 mm | -24 mm |
| Nov | 19.4 °C | +5.4 °C | 5 mm | -53 mm |
| Dec | 9.2 °C | +1.9 °C | 91 mm | +22 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 Harsīn?
Harsīn has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 518 mm of precipitation per year.
What is the hottest day ever recorded in Harsīn?
The hottest day measured in Harsīn between 1940 and 2025 was 20 July 2019, reaching 41.0 °C.
What is the coldest day in Harsīn?
The coldest day measured in Harsīn between 1940 and 2025 was 31 December 1948, at -27.8 °C.
Does it snow in Harsīn?
Yes. Harsīn gets on average 89.0 cm of snow per year and has around 91 frost days.
Has the climate of Harsīn warmed?
Yes: Harsīn warmed by +3.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Harsīn?
The wettest day measured in Harsīn between 1940 and 2025 was 28 January 2019, with 62 mm of rain in 24 hours.
What was the windiest day in Harsīn?
The windiest day measured in Harsīn between 1940 and 2025 was 15 March 2008, with winds reaching 34.5 km/h.
What is the warmest month in Harsīn?
The warmest month in Harsīn is July (27.2 °C on average); the coldest is January (-1.1 °C).
How much does it rain in Harsīn?
Harsīn receives on average 518 mm of precipitation per year, spread over about 74 rainy days.
Is it sunny in Harsīn?
Harsīn 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 Harsīn?
The heaviest 24-hour snowfall measured in Harsīn between 1940 and 2025 was 19 February 1953, with 28.9 cm.
Are there tropical nights in Harsīn?
Yes: Harsīn has on average 17 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Harsīn?
In Harsīn, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 12 August 2022, and the lowest was -32.7 °C on 31 December 1948.
Compare Harsīn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Harsīn