Buk climate — normals and trends
Buk (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.8 °C and it receives 603 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 (-1.3 °C). Rainfall peaks in July.
Buk averages 88 frost days, 6 hot days (≥ 30 °C) and 127 rainy days per year.
Buk has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 106 to 70 per year over the period.
The hottest day of the period reached 38.0 °C (on 8 August 2015) and the coldest -29.8 °C (on 14 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
BukGreater Poland
- coords
- 52.36°, 16.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
12.5°C
Average daily low
5.3°C
Annual rainfall
603mm
Sunshine / day
7.4h
Mean relative humidity
77%
Average peak wind
17.9km/h
Seasonal range
20.1°C
Frost days (< 0 °C)
88 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
43.9 cm
Average feels-like high
9.8 °C
Average feels-like low
2.2 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.45 · 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
38.0 °C
8 August 2015
Coldest day
-29.8 °C
14 January 1987
Wettest day
72 mm
20 July 1981
Windiest day
53.5 km/h
13 November 1972
Strongest gust
116.6 km/h
20 January 1986
Hottest feels-like
38.1 °C
21 August 1943
Coldest feels-like
-34.9 °C
14 January 1987
Snowiest day
15.1 cm
3 March 1965
Sunniest day
16.0 h
8 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 | 4.6 °C | +3.7 °C | 58 mm | +17 mm |
| Feb | 3.2 °C | +0.8 °C | 23 mm | -15 mm |
| Mar | 11.8 °C | +4.9 °C | 25 mm | -16 mm |
| Apr | 17.0 °C | +4.2 °C | 20 mm | -22 mm |
| May | 17.2 °C | -0.8 °C | 64 mm | +6 mm |
| Jun | 24.3 °C | +2.7 °C | 52 mm | -11 mm |
| Jul | 24.4 °C | +1.1 °C | 85 mm | +6 mm |
| Aug | 24.4 °C | +1.4 °C | 86 mm | +22 mm |
| Sep | 20.4 °C | +1.7 °C | 58 mm | +10 mm |
| Oct | 12.3 °C | -0.6 °C | 70 mm | +29 mm |
| Nov | 6.9 °C | +0.5 °C | 41 mm | -3 mm |
| Dec | 4.2 °C | +1.6 °C | 23 mm | -23 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 Buk?
Buk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 603 mm of precipitation per year.
What is the hottest day ever recorded in Buk?
The hottest day measured in Buk between 1940 and 2025 was 8 August 2015, reaching 38.0 °C.
What is the coldest day in Buk?
The coldest day measured in Buk between 1940 and 2025 was 14 January 1987, at -29.8 °C.
Does it snow in Buk?
Yes. Buk gets on average 43.9 cm of snow per year and has around 88 frost days.
Has the climate of Buk warmed?
Yes: Buk warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Buk?
The wettest day measured in Buk between 1940 and 2025 was 20 July 1981, with 72 mm of rain in 24 hours.
What was the windiest day in Buk?
The windiest day measured in Buk between 1940 and 2025 was 13 November 1972, with winds reaching 53.5 km/h.
What is the warmest month in Buk?
The warmest month in Buk is July (18.8 °C on average); the coldest is January (-1.3 °C).
How much does it rain in Buk?
Buk receives on average 603 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Buk?
Buk gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Buk?
The heaviest 24-hour snowfall measured in Buk between 1940 and 2025 was 3 March 1965, with 15.1 cm.
Are there tropical nights in Buk?
Yes: Buk has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Buk?
In Buk, between 1940 and 2025, the highest apparent temperature reached 38.1 °C on 21 August 1943, and the lowest was -34.9 °C on 14 January 1987.
Compare Buk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Buk