Khorramabad climate — normals and trends
Khorramabad (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 13.4 °C and it receives 535 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 (26.9 °C on average) and the coldest is January (-0.3 °C). Rainfall peaks in March.
Khorramabad averages 94 frost days, 101 hot days (≥ 30 °C) and 67 rainy days per year.
Khorramabad has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 114 to 74 per year over the period.
The hottest day of the period reached 41.3 °C (on 13 July 2023) and the coldest -27.3 °C (on 20 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
KhorramabadLorestan Province
- coords
- 33.49°, 48.36°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.4°C
Average daily high
20.4°C
Average daily low
5.9°C
Annual rainfall
535mm
Sunshine / day
10.8h
Mean relative humidity
51%
Average peak wind
10.9km/h
Seasonal range
27.2°C
Frost days (< 0 °C)
94 d/yr
Hot days (≥ 30 °C)
101 d/yr
Rainy days (≥ 1 mm)
67 d/yr
Annual snowfall
74.6 cm
Average feels-like high
18.6 °C
Average feels-like low
2.9 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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
41.3 °C
13 July 2023
Coldest day
-27.3 °C
20 January 1964
Wettest day
79 mm
25 March 2019
Windiest day
32.0 km/h
15 March 2008
Strongest gust
115.2 km/h
25 November 1992
Hottest feels-like
41.4 °C
23 July 2025
Coldest feels-like
-32.4 °C
20 January 1964
Snowiest day
29.3 cm
9 January 1950
Sunniest day
13.9 h
24 June 1941
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 | 8.4 °C | +2.9 °C | 35 mm | -53 mm |
| Feb | 7.0 °C | -0.4 °C | 86 mm | +0 mm |
| Mar | 14.8 °C | +2.9 °C | 86 mm | -19 mm |
| Apr | 21.5 °C | +3.7 °C | 57 mm | -13 mm |
| May | 30.1 °C | +5.9 °C | 12 mm | -12 mm |
| Jun | 34.4 °C | +3.0 °C | 1 mm | +0 mm |
| Jul | 37.6 °C | +2.5 °C | 0 mm | -0 mm |
| Aug | 38.6 °C | +4.0 °C | 0 mm | -0 mm |
| Sep | 32.5 °C | +2.1 °C | 0 mm | -1 mm |
| Oct | 27.1 °C | +3.9 °C | 0 mm | -17 mm |
| Nov | 20.4 °C | +5.5 °C | 12 mm | -45 mm |
| Dec | 9.7 °C | +1.1 °C | 116 mm | +30 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 Khorramabad?
Khorramabad has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 535 mm of precipitation per year.
What is the hottest day ever recorded in Khorramabad?
The hottest day measured in Khorramabad between 1940 and 2025 was 13 July 2023, reaching 41.3 °C.
What is the coldest day in Khorramabad?
The coldest day measured in Khorramabad between 1940 and 2025 was 20 January 1964, at -27.3 °C.
Does it snow in Khorramabad?
Yes. Khorramabad gets on average 74.6 cm of snow per year and has around 94 frost days.
Has the climate of Khorramabad warmed?
Yes: Khorramabad warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Khorramabad?
The wettest day measured in Khorramabad between 1940 and 2025 was 25 March 2019, with 79 mm of rain in 24 hours.
What was the windiest day in Khorramabad?
The windiest day measured in Khorramabad between 1940 and 2025 was 15 March 2008, with winds reaching 32.0 km/h.
What is the warmest month in Khorramabad?
The warmest month in Khorramabad is July (26.9 °C on average); the coldest is January (-0.3 °C).
How much does it rain in Khorramabad?
Khorramabad receives on average 535 mm of precipitation per year, spread over about 67 rainy days.
Is it sunny in Khorramabad?
Khorramabad 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 Khorramabad?
The heaviest 24-hour snowfall measured in Khorramabad between 1940 and 2025 was 9 January 1950, with 29.3 cm.
Are there tropical nights in Khorramabad?
Yes: Khorramabad has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Khorramabad?
In Khorramabad, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 23 July 2025, and the lowest was -32.4 °C on 20 January 1964.
Compare Khorramabad with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Khorramabad