Kluczbork climate — normals and trends
Kluczbork (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.7 °C and it receives 679 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 (18.8 °C on average) and the coldest is January (-2.0 °C). Rainfall peaks in July.
Kluczbork averages 95 frost days, 7 hot days (≥ 30 °C) and 134 rainy days per year.
Kluczbork has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 114 to 76 per year over the period.
The hottest day of the period reached 37.2 °C (on 8 August 2013) and the coldest -28.2 °C (on 13 January 1987).
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
KluczborkOpole Voivodeship
- coords
- 50.97°, 18.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.7°C
Average daily high
12.5°C
Average daily low
4.9°C
Annual rainfall
679mm
Sunshine / day
7.5h
Mean relative humidity
77%
Average peak wind
18.9km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
95 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
60.0 cm
Average feels-like high
9.8 °C
Average feels-like low
1.8 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °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
37.2 °C
8 August 2013
Coldest day
-28.2 °C
13 January 1987
Wettest day
78 mm
6 July 1997
Windiest day
53.3 km/h
28 March 1997
Strongest gust
112.3 km/h
7 March 2002
Hottest feels-like
37.8 °C
5 July 1957
Coldest feels-like
-33.6 °C
9 February 1956
Snowiest day
11.8 cm
27 October 2012
Sunniest day
16.0 h
24 June 2008
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 | 5.1 °C | +4.8 °C | 45 mm | +2 mm |
| Feb | 3.7 °C | +1.6 °C | 11 mm | -31 mm |
| Mar | 11.9 °C | +5.0 °C | 34 mm | -10 mm |
| Apr | 16.8 °C | +3.6 °C | 31 mm | -17 mm |
| May | 16.6 °C | -1.7 °C | 62 mm | -6 mm |
| Jun | 23.8 °C | +2.0 °C | 59 mm | -17 mm |
| Jul | 24.0 °C | +0.5 °C | 137 mm | +46 mm |
| Aug | 24.5 °C | +1.1 °C | 37 mm | -34 mm |
| Sep | 20.3 °C | +1.4 °C | 99 mm | +45 mm |
| Oct | 12.1 °C | -1.1 °C | 74 mm | +29 mm |
| Nov | 7.0 °C | +0.4 °C | 64 mm | +15 mm |
| Dec | 4.2 °C | +2.0 °C | 15 mm | -33 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 Kluczbork?
Kluczbork has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.7 °C and it receives 679 mm of precipitation per year.
What is the hottest day ever recorded in Kluczbork?
The hottest day measured in Kluczbork between 1940 and 2025 was 8 August 2013, reaching 37.2 °C.
What is the coldest day in Kluczbork?
The coldest day measured in Kluczbork between 1940 and 2025 was 13 January 1987, at -28.2 °C.
Does it snow in Kluczbork?
Yes. Kluczbork gets on average 60.0 cm of snow per year and has around 95 frost days.
Has the climate of Kluczbork warmed?
Yes: Kluczbork warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kluczbork?
The wettest day measured in Kluczbork between 1940 and 2025 was 6 July 1997, with 78 mm of rain in 24 hours.
What was the windiest day in Kluczbork?
The windiest day measured in Kluczbork between 1940 and 2025 was 28 March 1997, with winds reaching 53.3 km/h.
What is the warmest month in Kluczbork?
The warmest month in Kluczbork is July (18.8 °C on average); the coldest is January (-2.0 °C).
How much does it rain in Kluczbork?
Kluczbork receives on average 679 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Kluczbork?
Kluczbork gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kluczbork?
The heaviest 24-hour snowfall measured in Kluczbork between 1940 and 2025 was 27 October 2012, with 11.8 cm.
Are there tropical nights in Kluczbork?
Yes: Kluczbork has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kluczbork?
In Kluczbork, between 1940 and 2025, the highest apparent temperature reached 37.8 °C on 5 July 1957, and the lowest was -33.6 °C on 9 February 1956.
Compare Kluczbork with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kluczbork