Piranshahr climate — normals and trends
Piranshahr (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 655 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 (22.5 °C on average) and the coldest is January (-4.9 °C). Rainfall peaks in March.
Piranshahr averages 137 frost days, 36 hot days (≥ 30 °C) and 93 rainy days per year.
Piranshahr has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 157 to 117 per year over the period.
The hottest day of the period reached 37.5 °C (on 4 August 2025) and the coldest -30.2 °C (on 8 January 2008).
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
PiranshahrWest Azerbaijan Province
- coords
- 36.70°, 45.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
14.9°C
Average daily low
3.4°C
Annual rainfall
655mm
Sunshine / day
10.7h
Mean relative humidity
62%
Average peak wind
11.7km/h
Seasonal range
27.4°C
Frost days (< 0 °C)
137 d/yr
Hot days (≥ 30 °C)
36 d/yr
Rainy days (≥ 1 mm)
93 d/yr
Annual snowfall
241.2 cm
Average feels-like high
12.7 °C
Average feels-like low
0.3 °C
Average peak gust
36.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
37.5 °C
4 August 2025
Coldest day
-30.2 °C
8 January 2008
Wettest day
70 mm
26 February 1991
Windiest day
30.9 km/h
11 October 1948
Strongest gust
104.4 km/h
17 March 2013
Hottest feels-like
37.9 °C
27 July 2018
Coldest feels-like
-34.6 °C
8 January 2008
Snowiest day
44.8 cm
20 December 2002
Sunniest day
14.0 h
17 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 | 2.6 °C | +3.0 °C | 22 mm | -65 mm |
| Feb | -0.2 °C | -1.4 °C | 70 mm | -22 mm |
| Mar | 11.2 °C | +5.5 °C | 48 mm | -61 mm |
| Apr | 15.4 °C | +2.9 °C | 113 mm | +19 mm |
| May | 22.1 °C | +3.1 °C | 57 mm | -6 mm |
| Jun | 26.9 °C | +1.5 °C | 7 mm | -8 mm |
| Jul | 31.0 °C | +1.4 °C | 1 mm | -4 mm |
| Aug | 34.4 °C | +4.7 °C | 2 mm | -2 mm |
| Sep | 26.6 °C | +1.0 °C | 2 mm | -5 mm |
| Oct | 21.5 °C | +3.2 °C | 2 mm | -33 mm |
| Nov | 14.3 °C | +4.7 °C | 33 mm | -31 mm |
| Dec | 4.5 °C | +2.0 °C | 148 mm | +69 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 Piranshahr?
Piranshahr has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 655 mm of precipitation per year.
What is the hottest day ever recorded in Piranshahr?
The hottest day measured in Piranshahr between 1940 and 2025 was 4 August 2025, reaching 37.5 °C.
What is the coldest day in Piranshahr?
The coldest day measured in Piranshahr between 1940 and 2025 was 8 January 2008, at -30.2 °C.
Does it snow in Piranshahr?
Yes. Piranshahr gets on average 241.2 cm of snow per year and has around 137 frost days.
Has the climate of Piranshahr warmed?
Yes: Piranshahr warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Piranshahr?
The wettest day measured in Piranshahr between 1940 and 2025 was 26 February 1991, with 70 mm of rain in 24 hours.
What was the windiest day in Piranshahr?
The windiest day measured in Piranshahr between 1940 and 2025 was 11 October 1948, with winds reaching 30.9 km/h.
What is the warmest month in Piranshahr?
The warmest month in Piranshahr is July (22.5 °C on average); the coldest is January (-4.9 °C).
How much does it rain in Piranshahr?
Piranshahr receives on average 655 mm of precipitation per year, spread over about 93 rainy days.
Is it sunny in Piranshahr?
Piranshahr gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Piranshahr?
The heaviest 24-hour snowfall measured in Piranshahr between 1940 and 2025 was 20 December 2002, with 44.8 cm.
Are there tropical nights in Piranshahr?
Yes: Piranshahr has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Piranshahr?
In Piranshahr, between 1940 and 2025, the highest apparent temperature reached 37.9 °C on 27 July 2018, and the lowest was -34.6 °C on 8 January 2008.
Compare Piranshahr with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Piranshahr