Birjand climate — normals and trends
Birjand (Iran) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 207 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 (25.8 °C on average) and the coldest is January (1.8 °C). Rainfall peaks in March.
Birjand averages 76 frost days, 87 hot days (≥ 30 °C) and 40 rainy days per year.
Birjand has warmed by +2.3 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 85 to 67 per year over the period.
The hottest day of the period reached 40.5 °C (on 13 August 2024) and the coldest -22.6 °C (on 8 January 2008).
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
BirjandSouth Khorasan Province
- coords
- 32.87°, 59.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.5°C
Average daily high
21.1°C
Average daily low
7.9°C
Annual rainfall
207mm
Sunshine / day
11.3h
Mean relative humidity
38%
Average peak wind
18.0km/h
Seasonal range
24.0°C
Frost days (< 0 °C)
76 d/yr
Hot days (≥ 30 °C)
87 d/yr
Rainy days (≥ 1 mm)
40 d/yr
Annual snowfall
20.1 cm
Average feels-like high
17.5 °C
Average feels-like low
4.1 °C
Average peak gust
42.1 km/h
Tropical nights (≥ 20 °C)
20 d/yr
Solar radiation
21.3 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
40.5 °C
13 August 2024
Coldest day
-22.6 °C
8 January 2008
Wettest day
49 mm
22 January 1957
Windiest day
43.5 km/h
28 March 1981
Strongest gust
102.2 km/h
23 February 1973
Hottest feels-like
40.3 °C
13 August 2024
Coldest feels-like
-28.2 °C
8 January 2008
Snowiest day
14.0 cm
19 January 1974
Sunniest day
14.0 h
27 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 8.0 °C | +0.5 °C | 38 mm | -5 mm |
| Feb | 11.1 °C | +1.5 °C | 36 mm | -8 mm |
| Mar | 17.3 °C | +2.5 °C | 23 mm | -24 mm |
| Apr | 27.7 °C | +6.5 °C | 2 mm | -22 mm |
| May | 32.3 °C | +5.0 °C | 1 mm | -7 mm |
| Jun | 32.3 °C | +0.4 °C | 9 mm | +8 mm |
| Jul | 34.3 °C | +1.7 °C | 0 mm | -0 mm |
| Aug | 32.7 °C | +1.8 °C | 0 mm | -0 mm |
| Sep | 32.0 °C | +3.5 °C | 0 mm | -0 mm |
| Oct | 26.6 °C | +3.5 °C | 0 mm | -3 mm |
| Nov | 18.8 °C | +3.1 °C | 0 mm | -11 mm |
| Dec | 12.3 °C | +2.3 °C | 79 mm | +51 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 Birjand?
Birjand has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 207 mm of precipitation per year.
What is the hottest day ever recorded in Birjand?
The hottest day measured in Birjand between 1940 and 2025 was 13 August 2024, reaching 40.5 °C.
What is the coldest day in Birjand?
The coldest day measured in Birjand between 1940 and 2025 was 8 January 2008, at -22.6 °C.
Does it snow in Birjand?
Yes. Birjand gets on average 20.1 cm of snow per year and has around 76 frost days.
Has the climate of Birjand warmed?
Yes: Birjand warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Birjand?
The wettest day measured in Birjand between 1940 and 2025 was 22 January 1957, with 49 mm of rain in 24 hours.
What was the windiest day in Birjand?
The windiest day measured in Birjand between 1940 and 2025 was 28 March 1981, with winds reaching 43.5 km/h.
What is the warmest month in Birjand?
The warmest month in Birjand is July (25.8 °C on average); the coldest is January (1.8 °C).
How much does it rain in Birjand?
Birjand receives on average 207 mm of precipitation per year, spread over about 40 rainy days.
Is it sunny in Birjand?
Birjand gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Birjand?
The heaviest 24-hour snowfall measured in Birjand between 1940 and 2025 was 19 January 1974, with 14.0 cm.
Are there tropical nights in Birjand?
Yes: Birjand has on average 20 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Birjand?
In Birjand, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 13 August 2024, and the lowest was -28.2 °C on 8 January 2008.
Compare Birjand with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Birjand