Shāl climate — normals and trends
Shāl (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 271 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 (24.4 °C on average) and the coldest is January (-1.3 °C). Rainfall peaks in March.
Shāl averages 101 frost days, 91 hot days (≥ 30 °C) and 58 rainy days per year.
Shāl 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 127 to 75 per year over the period.
The hottest day of the period reached 41.8 °C (on 31 July 1976) and the coldest -25.0 °C (on 24 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
ShālQazvin Province
- coords
- 35.90°, 49.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
20.0°C
Average daily low
6.0°C
Annual rainfall
271mm
Sunshine / day
10.8h
Mean relative humidity
57%
Average peak wind
14.9km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
101 d/yr
Hot days (≥ 30 °C)
91 d/yr
Rainy days (≥ 1 mm)
58 d/yr
Annual snowfall
50.2 cm
Average feels-like high
17.6 °C
Average feels-like low
3.5 °C
Average peak gust
34.2 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
19.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.5 °C
since 1940
+0.4 °C per decade · r² = 0.53 · 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
41.8 °C
31 July 1976
Coldest day
-25.0 °C
24 January 1964
Wettest day
59 mm
1 April 2019
Windiest day
43.7 km/h
7 April 1964
Strongest gust
88.6 km/h
7 April 1964
Hottest feels-like
41.0 °C
31 July 1976
Coldest feels-like
-29.6 °C
24 January 1964
Snowiest day
17.6 cm
29 November 1986
Sunniest day
13.9 h
2 July 2013
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 | 8.3 °C | +3.5 °C | 16 mm | -15 mm |
| Feb | 7.2 °C | 0.0 °C | 40 mm | +5 mm |
| Mar | 16.3 °C | +3.7 °C | 55 mm | +6 mm |
| Apr | 23.1 °C | +3.8 °C | 20 mm | -25 mm |
| May | 30.0 °C | +4.7 °C | 9 mm | -14 mm |
| Jun | 31.7 °C | +0.7 °C | 2 mm | -2 mm |
| Jul | 34.6 °C | +0.8 °C | 2 mm | +1 mm |
| Aug | 36.4 °C | +2.9 °C | 0 mm | -1 mm |
| Sep | 30.3 °C | +0.9 °C | 3 mm | +0 mm |
| Oct | 26.2 °C | +3.9 °C | 0 mm | -16 mm |
| Nov | 18.3 °C | +4.6 °C | 1 mm | -30 mm |
| Dec | 9.3 °C | +2.0 °C | 32 mm | +1 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 Shāl?
Shāl has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 271 mm of precipitation per year.
What is the hottest day ever recorded in Shāl?
The hottest day measured in Shāl between 1940 and 2025 was 31 July 1976, reaching 41.8 °C.
What is the coldest day in Shāl?
The coldest day measured in Shāl between 1940 and 2025 was 24 January 1964, at -25.0 °C.
Does it snow in Shāl?
Yes. Shāl gets on average 50.2 cm of snow per year and has around 101 frost days.
Has the climate of Shāl warmed?
Yes: Shāl warmed by +3.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shāl?
The wettest day measured in Shāl between 1940 and 2025 was 1 April 2019, with 59 mm of rain in 24 hours.
What was the windiest day in Shāl?
The windiest day measured in Shāl between 1940 and 2025 was 7 April 1964, with winds reaching 43.7 km/h.
What is the warmest month in Shāl?
The warmest month in Shāl is July (24.4 °C on average); the coldest is January (-1.3 °C).
How much does it rain in Shāl?
Shāl receives on average 271 mm of precipitation per year, spread over about 58 rainy days.
Is it sunny in Shāl?
Shāl gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Shāl?
The heaviest 24-hour snowfall measured in Shāl between 1940 and 2025 was 29 November 1986, with 17.6 cm.
Are there tropical nights in Shāl?
Yes: Shāl has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Shāl?
In Shāl, between 1940 and 2025, the highest apparent temperature reached 41.0 °C on 31 July 1976, and the lowest was -29.6 °C on 24 January 1964.
Compare Shāl with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shāl