Shīrvān climate — normals and trends
Shīrvān (Iran) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 9.6 °C and it receives 239 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 (22.0 °C on average) and the coldest is January (-3.8 °C). Rainfall peaks in March.
Shīrvān averages 132 frost days, 23 hot days (≥ 30 °C) and 53 rainy days per year.
Shīrvān has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 145 to 119 per year over the period.
The hottest day of the period reached 36.4 °C (on 3 July 1942) and the coldest -29.5 °C (on 7 February 1984).
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
ShīrvānNorth Khorasan
- coords
- 37.40°, 57.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.6°C
Average daily high
15.9°C
Average daily low
3.6°C
Annual rainfall
239mm
Sunshine / day
10.6h
Mean relative humidity
59%
Average peak wind
11.0km/h
Seasonal range
25.8°C
Frost days (< 0 °C)
132 d/yr
Hot days (≥ 30 °C)
23 d/yr
Rainy days (≥ 1 mm)
53 d/yr
Annual snowfall
57.2 cm
Average feels-like high
13.8 °C
Average feels-like low
0.6 °C
Average peak gust
28.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.22 · 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
36.4 °C
3 July 1942
Coldest day
-29.5 °C
7 February 1984
Wettest day
34 mm
22 May 2019
Windiest day
34.3 km/h
16 April 1980
Strongest gust
99.7 km/h
30 March 1998
Hottest feels-like
37.6 °C
16 July 1995
Coldest feels-like
-34.1 °C
7 February 1984
Snowiest day
19.5 cm
25 February 1978
Sunniest day
14.0 h
20 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 | 5.5 °C | +4.0 °C | 7 mm | -20 mm |
| Feb | 3.1 °C | +0.2 °C | 33 mm | +1 mm |
| Mar | 11.8 °C | +3.1 °C | 36 mm | -12 mm |
| Apr | 20.2 °C | +4.2 °C | 15 mm | -25 mm |
| May | 24.9 °C | +3.7 °C | 3 mm | -24 mm |
| Jun | 26.7 °C | +0.4 °C | 8 mm | +2 mm |
| Jul | 30.3 °C | +1.5 °C | 1 mm | -2 mm |
| Aug | 29.5 °C | +1.7 °C | 1 mm | -1 mm |
| Sep | 26.1 °C | +1.6 °C | 1 mm | -3 mm |
| Oct | 21.8 °C | +3.7 °C | 0 mm | -12 mm |
| Nov | 15.0 °C | +4.2 °C | 2 mm | -17 mm |
| Dec | 5.2 °C | +0.8 °C | 34 mm | +13 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 Shīrvān?
Shīrvān has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 9.6 °C and it receives 239 mm of precipitation per year.
What is the hottest day ever recorded in Shīrvān?
The hottest day measured in Shīrvān between 1940 and 2025 was 3 July 1942, reaching 36.4 °C.
What is the coldest day in Shīrvān?
The coldest day measured in Shīrvān between 1940 and 2025 was 7 February 1984, at -29.5 °C.
Does it snow in Shīrvān?
Yes. Shīrvān gets on average 57.2 cm of snow per year and has around 132 frost days.
Has the climate of Shīrvān warmed?
Yes: Shīrvān warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shīrvān?
The wettest day measured in Shīrvān between 1940 and 2025 was 22 May 2019, with 34 mm of rain in 24 hours.
What was the windiest day in Shīrvān?
The windiest day measured in Shīrvān between 1940 and 2025 was 16 April 1980, with winds reaching 34.3 km/h.
What is the warmest month in Shīrvān?
The warmest month in Shīrvān is July (22.0 °C on average); the coldest is January (-3.8 °C).
How much does it rain in Shīrvān?
Shīrvān receives on average 239 mm of precipitation per year, spread over about 53 rainy days.
Is it sunny in Shīrvān?
Shīrvān gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Shīrvān?
The heaviest 24-hour snowfall measured in Shīrvān between 1940 and 2025 was 25 February 1978, with 19.5 cm.
Are there tropical nights in Shīrvān?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Shīrvān.
What was the most extreme apparent temperature in Shīrvān?
In Shīrvān, between 1940 and 2025, the highest apparent temperature reached 37.6 °C on 16 July 1995, and the lowest was -34.1 °C on 7 February 1984.
Compare Shīrvān with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shīrvān