Diyadin climate — normals and trends
Diyadin (Republic of Türkiye) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.6 °C and it receives 752 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 (17.2 °C on average) and the coldest is January (-8.5 °C). Rainfall peaks in May.
Diyadin averages 185 frost days, 1 hot days (≥ 30 °C) and 144 rainy days per year.
Diyadin has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 199 to 171 per year over the period.
The hottest day of the period reached 32.7 °C (on 21 July 2021) and the coldest -31.9 °C (on 12 January 1940).
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
DiyadinAğrı
- coords
- 39.54°, 43.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.6°C
Average daily high
10.5°C
Average daily low
-0.8°C
Annual rainfall
752mm
Sunshine / day
10.7h
Mean relative humidity
68%
Average peak wind
10.5km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
185 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
211.1 cm
Average feels-like high
8.1 °C
Average feels-like low
-3.9 °C
Average peak gust
32.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.36 · 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
32.7 °C
21 July 2021
Coldest day
-31.9 °C
12 January 1940
Wettest day
43 mm
1 November 2016
Windiest day
35.8 km/h
17 March 1948
Strongest gust
106.2 km/h
21 April 2015
Hottest feels-like
31.8 °C
12 July 2018
Coldest feels-like
-36.6 °C
12 January 1940
Snowiest day
27.0 cm
1 November 2016
Sunniest day
14.0 h
27 June 2025
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 | -0.7 °C | +2.2 °C | 10 mm | -33 mm |
| Feb | -4.1 °C | -2.6 °C | 51 mm | 0 mm |
| Mar | 7.3 °C | +4.7 °C | 33 mm | -45 mm |
| Apr | 10.0 °C | +1.4 °C | 155 mm | +68 mm |
| May | 17.5 °C | +3.1 °C | 75 mm | -41 mm |
| Jun | 21.5 °C | +1.9 °C | 36 mm | -55 mm |
| Jul | 25.4 °C | +1.8 °C | 37 mm | -24 mm |
| Aug | 28.3 °C | +4.3 °C | 19 mm | -23 mm |
| Sep | 20.4 °C | +0.5 °C | 28 mm | -9 mm |
| Oct | 14.7 °C | +1.9 °C | 40 mm | -19 mm |
| Nov | 10.4 °C | +5.0 °C | 9 mm | -37 mm |
| Dec | 0.2 °C | +0.7 °C | 78 mm | +36 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 Diyadin?
Diyadin has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.6 °C and it receives 752 mm of precipitation per year.
What is the hottest day ever recorded in Diyadin?
The hottest day measured in Diyadin between 1940 and 2025 was 21 July 2021, reaching 32.7 °C.
What is the coldest day in Diyadin?
The coldest day measured in Diyadin between 1940 and 2025 was 12 January 1940, at -31.9 °C.
Does it snow in Diyadin?
Yes. Diyadin gets on average 211.1 cm of snow per year and has around 185 frost days.
Has the climate of Diyadin warmed?
Yes: Diyadin warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Diyadin?
The wettest day measured in Diyadin between 1940 and 2025 was 1 November 2016, with 43 mm of rain in 24 hours.
What was the windiest day in Diyadin?
The windiest day measured in Diyadin between 1940 and 2025 was 17 March 1948, with winds reaching 35.8 km/h.
What is the warmest month in Diyadin?
The warmest month in Diyadin is July (17.2 °C on average); the coldest is January (-8.5 °C).
How much does it rain in Diyadin?
Diyadin receives on average 752 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Diyadin?
Diyadin gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Diyadin?
The heaviest 24-hour snowfall measured in Diyadin between 1940 and 2025 was 1 November 2016, with 27.0 cm.
Are there tropical nights in Diyadin?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Diyadin.
What was the most extreme apparent temperature in Diyadin?
In Diyadin, between 1940 and 2025, the highest apparent temperature reached 31.8 °C on 12 July 2018, and the lowest was -36.6 °C on 12 January 1940.
Compare Diyadin with another city
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Nearby cities
The climate around Diyadin