Radomir climate — normals and trends
Radomir (Bulgaria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 531 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 (20.5 °C on average) and the coldest is January (-1.2 °C). Rainfall peaks in April.
Radomir averages 102 frost days, 15 hot days (≥ 30 °C) and 103 rainy days per year.
Radomir has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 115 to 89 per year over the period.
The hottest day of the period reached 38.7 °C (on 24 July 2007) and the coldest -28.9 °C (on 13 January 1985).
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
RadomirPernik
- coords
- 42.55°, 22.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
15.5°C
Average daily low
5.2°C
Annual rainfall
531mm
Sunshine / day
9.6h
Mean relative humidity
70%
Average peak wind
10.8km/h
Seasonal range
21.7°C
Frost days (< 0 °C)
102 d/yr
Hot days (≥ 30 °C)
15 d/yr
Rainy days (≥ 1 mm)
103 d/yr
Annual snowfall
74.3 cm
Average feels-like high
13.8 °C
Average feels-like low
2.9 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.49 · 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
38.7 °C
24 July 2007
Coldest day
-28.9 °C
13 January 1985
Wettest day
50 mm
19 August 1949
Windiest day
34.6 km/h
26 February 1989
Strongest gust
90.4 km/h
17 April 1999
Hottest feels-like
40.1 °C
24 July 2007
Coldest feels-like
-33.7 °C
13 January 1985
Snowiest day
21.4 cm
15 February 1991
Sunniest day
15.0 h
24 June 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 | 7.2 °C | +4.0 °C | 29 mm | -13 mm |
| Feb | 5.9 °C | 0.0 °C | 13 mm | -27 mm |
| Mar | 15.2 °C | +5.2 °C | 51 mm | -1 mm |
| Apr | 16.1 °C | +0.8 °C | 37 mm | -21 mm |
| May | 19.2 °C | -0.8 °C | 85 mm | +29 mm |
| Jun | 28.1 °C | +4.3 °C | 3 mm | -48 mm |
| Jul | 30.7 °C | +4.4 °C | 14 mm | -20 mm |
| Aug | 28.7 °C | +1.9 °C | 24 mm | -3 mm |
| Sep | 25.6 °C | +2.9 °C | 23 mm | -7 mm |
| Oct | 14.1 °C | -2.6 °C | 144 mm | +101 mm |
| Nov | 12.8 °C | +2.7 °C | 100 mm | +49 mm |
| Dec | 6.7 °C | +2.0 °C | 33 mm | -16 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 Radomir?
Radomir has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 531 mm of precipitation per year.
What is the hottest day ever recorded in Radomir?
The hottest day measured in Radomir between 1940 and 2025 was 24 July 2007, reaching 38.7 °C.
What is the coldest day in Radomir?
The coldest day measured in Radomir between 1940 and 2025 was 13 January 1985, at -28.9 °C.
Does it snow in Radomir?
Yes. Radomir gets on average 74.3 cm of snow per year and has around 102 frost days.
Has the climate of Radomir warmed?
Yes: Radomir warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Radomir?
The wettest day measured in Radomir between 1940 and 2025 was 19 August 1949, with 50 mm of rain in 24 hours.
What was the windiest day in Radomir?
The windiest day measured in Radomir between 1940 and 2025 was 26 February 1989, with winds reaching 34.6 km/h.
What is the warmest month in Radomir?
The warmest month in Radomir is July (20.5 °C on average); the coldest is January (-1.2 °C).
How much does it rain in Radomir?
Radomir receives on average 531 mm of precipitation per year, spread over about 103 rainy days.
Is it sunny in Radomir?
Radomir gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Radomir?
The heaviest 24-hour snowfall measured in Radomir between 1940 and 2025 was 15 February 1991, with 21.4 cm.
Are there tropical nights in Radomir?
Yes: Radomir has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Radomir?
In Radomir, between 1940 and 2025, the highest apparent temperature reached 40.1 °C on 24 July 2007, and the lowest was -33.7 °C on 13 January 1985.
Compare Radomir with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Radomir