Ahar climate — normals and trends
Ahar (Iran) has a warm-summer mediterranean continental climate (Dsb) under the Köppen-Geiger classification. Its mean annual temperature is 6.7 °C and it receives 612 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 (17.9 °C on average) and the coldest is January (-6.0 °C). Rainfall peaks in May.
Ahar averages 150 frost days, 3 hot days (≥ 30 °C) and 123 rainy days per year.
Ahar has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 165 to 135 per year over the period.
The hottest day of the period reached 35.0 °C (on 12 August 2003) and the coldest -30.4 °C (on 3 February 1967).
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
AharEast Azerbaijan Province
- coords
- 38.48°, 47.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.7°C
Average daily high
12.7°C
Average daily low
1.6°C
Annual rainfall
612mm
Sunshine / day
10.6h
Mean relative humidity
72%
Average peak wind
11.2km/h
Seasonal range
23.9°C
Frost days (< 0 °C)
150 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
147.1 cm
Average feels-like high
10.8 °C
Average feels-like low
-1.0 °C
Average peak gust
35.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.48 · 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
35.0 °C
12 August 2003
Coldest day
-30.4 °C
3 February 1967
Wettest day
38 mm
7 May 2003
Windiest day
38.1 km/h
6 April 2003
Strongest gust
127.1 km/h
6 April 2003
Hottest feels-like
35.3 °C
3 August 2011
Coldest feels-like
-34.9 °C
3 February 1967
Snowiest day
25.1 cm
18 November 2001
Sunniest day
14.0 h
30 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 | 4.3 °C | +4.8 °C | 8 mm | -26 mm |
| Feb | 0.4 °C | -0.7 °C | 73 mm | +30 mm |
| Mar | 11.2 °C | +5.6 °C | 44 mm | -27 mm |
| Apr | 15.4 °C | +3.1 °C | 79 mm | -15 mm |
| May | 20.9 °C | +3.5 °C | 78 mm | -33 mm |
| Jun | 22.7 °C | +1.2 °C | 30 mm | -32 mm |
| Jul | 25.7 °C | +1.5 °C | 18 mm | -3 mm |
| Aug | 27.5 °C | +3.1 °C | 5 mm | -16 mm |
| Sep | 21.6 °C | +0.4 °C | 47 mm | +17 mm |
| Oct | 19.1 °C | +3.7 °C | 19 mm | -34 mm |
| Nov | 13.7 °C | +5.6 °C | 6 mm | -34 mm |
| Dec | 4.4 °C | +2.5 °C | 50 mm | +19 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 Ahar?
Ahar has a warm-summer mediterranean continental climate (Köppen Dsb). Over 1940-2025, the average annual temperature is 6.7 °C and it receives 612 mm of precipitation per year.
What is the hottest day ever recorded in Ahar?
The hottest day measured in Ahar between 1940 and 2025 was 12 August 2003, reaching 35.0 °C.
What is the coldest day in Ahar?
The coldest day measured in Ahar between 1940 and 2025 was 3 February 1967, at -30.4 °C.
Does it snow in Ahar?
Yes. Ahar gets on average 147.1 cm of snow per year and has around 150 frost days.
Has the climate of Ahar warmed?
Yes: Ahar warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ahar?
The wettest day measured in Ahar between 1940 and 2025 was 7 May 2003, with 38 mm of rain in 24 hours.
What was the windiest day in Ahar?
The windiest day measured in Ahar between 1940 and 2025 was 6 April 2003, with winds reaching 38.1 km/h.
What is the warmest month in Ahar?
The warmest month in Ahar is July (17.9 °C on average); the coldest is January (-6.0 °C).
How much does it rain in Ahar?
Ahar receives on average 612 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Ahar?
Ahar 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 Ahar?
The heaviest 24-hour snowfall measured in Ahar between 1940 and 2025 was 18 November 2001, with 25.1 cm.
Are there tropical nights in Ahar?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ahar.
What was the most extreme apparent temperature in Ahar?
In Ahar, between 1940 and 2025, the highest apparent temperature reached 35.3 °C on 3 August 2011, and the lowest was -34.9 °C on 3 February 1967.
Compare Ahar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ahar