Yasuj climate — normals and trends
Yasuj (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 714 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 (22.8 °C on average) and the coldest is January (-3.0 °C). Rainfall peaks in January.
Yasuj averages 131 frost days, 36 hot days (≥ 30 °C) and 61 rainy days per year.
Yasuj has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 144 to 118 per year over the period.
The hottest day of the period reached 36.4 °C (on 29 July 2024) and the coldest -26.8 °C (on 28 December 1963).
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
YasujKohgiluyeh and Boyer-Ahmad
- coords
- 30.67°, 51.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
16.9°C
Average daily low
3.4°C
Annual rainfall
714mm
Sunshine / day
10.9h
Mean relative humidity
49%
Average peak wind
9.8km/h
Seasonal range
25.8°C
Frost days (< 0 °C)
131 d/yr
Hot days (≥ 30 °C)
36 d/yr
Rainy days (≥ 1 mm)
61 d/yr
Annual snowfall
237.6 cm
Average feels-like high
14.8 °C
Average feels-like low
0.1 °C
Average peak gust
38.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.34 · 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
29 July 2024
Coldest day
-26.8 °C
28 December 1963
Wettest day
97 mm
7 January 1951
Windiest day
29.1 km/h
23 March 1941
Strongest gust
129.6 km/h
25 February 1992
Hottest feels-like
36.0 °C
28 July 2024
Coldest feels-like
-31.6 °C
28 December 1963
Snowiest day
64.1 cm
7 January 1951
Sunniest day
13.0 h
24 April 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 | 6.2 °C | +3.3 °C | 23 mm | -129 mm |
| Feb | 5.5 °C | +1.1 °C | 96 mm | -32 mm |
| Mar | 11.3 °C | +3.1 °C | 188 mm | +51 mm |
| Apr | 19.6 °C | +5.1 °C | 22 mm | -44 mm |
| May | 26.6 °C | +5.5 °C | 3 mm | -14 mm |
| Jun | 30.3 °C | +2.7 °C | 0 mm | -1 mm |
| Jul | 32.5 °C | +2.3 °C | 7 mm | +4 mm |
| Aug | 32.5 °C | +3.0 °C | 0 mm | -1 mm |
| Sep | 28.9 °C | +2.7 °C | 1 mm | 0 mm |
| Oct | 23.7 °C | +3.7 °C | 0 mm | -10 mm |
| Nov | 17.4 °C | +5.0 °C | 1 mm | -71 mm |
| Dec | 6.8 °C | +0.8 °C | 182 mm | +54 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 Yasuj?
Yasuj has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 714 mm of precipitation per year.
What is the hottest day ever recorded in Yasuj?
The hottest day measured in Yasuj between 1940 and 2025 was 29 July 2024, reaching 36.4 °C.
What is the coldest day in Yasuj?
The coldest day measured in Yasuj between 1940 and 2025 was 28 December 1963, at -26.8 °C.
Does it snow in Yasuj?
Yes. Yasuj gets on average 237.6 cm of snow per year and has around 131 frost days.
Has the climate of Yasuj warmed?
Yes: Yasuj warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yasuj?
The wettest day measured in Yasuj between 1940 and 2025 was 7 January 1951, with 97 mm of rain in 24 hours.
What was the windiest day in Yasuj?
The windiest day measured in Yasuj between 1940 and 2025 was 23 March 1941, with winds reaching 29.1 km/h.
What is the warmest month in Yasuj?
The warmest month in Yasuj is July (22.8 °C on average); the coldest is January (-3.0 °C).
How much does it rain in Yasuj?
Yasuj receives on average 714 mm of precipitation per year, spread over about 61 rainy days.
Is it sunny in Yasuj?
Yasuj gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yasuj?
The heaviest 24-hour snowfall measured in Yasuj between 1940 and 2025 was 7 January 1951, with 64.1 cm.
Are there tropical nights in Yasuj?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Yasuj.
What was the most extreme apparent temperature in Yasuj?
In Yasuj, between 1940 and 2025, the highest apparent temperature reached 36.0 °C on 28 July 2024, and the lowest was -31.6 °C on 28 December 1963.
Compare Yasuj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yasuj