Seyah Cheshmeh climate — normals and trends
Seyah Cheshmeh (Iran) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.4 °C and it receives 625 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 (18.9 °C on average) and the coldest is January (-7.2 °C). Rainfall peaks in May.
Seyah Cheshmeh averages 156 frost days, 3 hot days (≥ 30 °C) and 134 rainy days per year.
Seyah Cheshmeh has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 172 to 140 per year over the period.
The hottest day of the period reached 35.1 °C (on 8 August 2025) and the coldest -30.3 °C (on 28 January 2016).
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
Seyah CheshmehWest Azerbaijan Province
- coords
- 39.07°, 44.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.4°C
Average daily high
11.9°C
Average daily low
1.3°C
Annual rainfall
625mm
Sunshine / day
10.8h
Mean relative humidity
66%
Average peak wind
9.0km/h
Seasonal range
26.1°C
Frost days (< 0 °C)
156 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
107.3 cm
Average feels-like high
10.1 °C
Average feels-like low
-1.5 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.38 · 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
35.1 °C
8 August 2025
Coldest day
-30.3 °C
28 January 2016
Wettest day
34 mm
6 March 2004
Windiest day
32.5 km/h
17 March 1948
Strongest gust
110.5 km/h
29 March 2014
Hottest feels-like
33.8 °C
3 August 2011
Coldest feels-like
-35.3 °C
28 January 2016
Snowiest day
19.5 cm
4 February 2006
Sunniest day
14.0 h
8 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 | 0.8 °C | +2.5 °C | 6 mm | -19 mm |
| Feb | -1.9 °C | -1.9 °C | 37 mm | +7 mm |
| Mar | 9.8 °C | +5.3 °C | 28 mm | -31 mm |
| Apr | 13.1 °C | +2.1 °C | 106 mm | +13 mm |
| May | 19.2 °C | +3.2 °C | 91 mm | -39 mm |
| Jun | 22.9 °C | +2.1 °C | 41 mm | -48 mm |
| Jul | 27.3 °C | +2.7 °C | 14 mm | -29 mm |
| Aug | 30.1 °C | +5.1 °C | 10 mm | -22 mm |
| Sep | 22.2 °C | +1.1 °C | 27 mm | -3 mm |
| Oct | 17.1 °C | +2.9 °C | 14 mm | -28 mm |
| Nov | 11.3 °C | +4.5 °C | 6 mm | -24 mm |
| Dec | 2.1 °C | +1.4 °C | 38 mm | +14 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 Seyah Cheshmeh?
Seyah Cheshmeh has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.4 °C and it receives 625 mm of precipitation per year.
What is the hottest day ever recorded in Seyah Cheshmeh?
The hottest day measured in Seyah Cheshmeh between 1940 and 2025 was 8 August 2025, reaching 35.1 °C.
What is the coldest day in Seyah Cheshmeh?
The coldest day measured in Seyah Cheshmeh between 1940 and 2025 was 28 January 2016, at -30.3 °C.
Does it snow in Seyah Cheshmeh?
Yes. Seyah Cheshmeh gets on average 107.3 cm of snow per year and has around 156 frost days.
Has the climate of Seyah Cheshmeh warmed?
Yes: Seyah Cheshmeh warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Seyah Cheshmeh?
The wettest day measured in Seyah Cheshmeh between 1940 and 2025 was 6 March 2004, with 34 mm of rain in 24 hours.
What was the windiest day in Seyah Cheshmeh?
The windiest day measured in Seyah Cheshmeh between 1940 and 2025 was 17 March 1948, with winds reaching 32.5 km/h.
What is the warmest month in Seyah Cheshmeh?
The warmest month in Seyah Cheshmeh is July (18.9 °C on average); the coldest is January (-7.2 °C).
How much does it rain in Seyah Cheshmeh?
Seyah Cheshmeh receives on average 625 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Seyah Cheshmeh?
Seyah Cheshmeh 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 Seyah Cheshmeh?
The heaviest 24-hour snowfall measured in Seyah Cheshmeh between 1940 and 2025 was 4 February 2006, with 19.5 cm.
Are there tropical nights in Seyah Cheshmeh?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Seyah Cheshmeh.
What was the most extreme apparent temperature in Seyah Cheshmeh?
In Seyah Cheshmeh, between 1940 and 2025, the highest apparent temperature reached 33.8 °C on 3 August 2011, and the lowest was -35.3 °C on 28 January 2016.
Compare Seyah Cheshmeh with another city
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Nearby cities
The climate around Seyah Cheshmeh