Grodzisk Wielkopolski climate — normals and trends
Grodzisk Wielkopolski (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 600 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 (18.9 °C on average) and the coldest is January (-1.2 °C). Rainfall peaks in July.
Grodzisk Wielkopolski averages 87 frost days, 7 hot days (≥ 30 °C) and 126 rainy days per year.
Grodzisk Wielkopolski 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 105 to 69 per year over the period.
The hottest day of the period reached 38.3 °C (on 30 June 2019) and the coldest -30.0 °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
Grodzisk WielkopolskiGreater Poland
- coords
- 52.23°, 16.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
12.6°C
Average daily low
5.3°C
Annual rainfall
600mm
Sunshine / day
7.3h
Mean relative humidity
77%
Average peak wind
17.9km/h
Seasonal range
20.1°C
Frost days (< 0 °C)
87 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
42.9 cm
Average feels-like high
9.9 °C
Average feels-like low
2.3 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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
38.3 °C
30 June 2019
Coldest day
-30.0 °C
14 January 1987
Wettest day
63 mm
14 July 2016
Windiest day
53.8 km/h
13 November 1972
Strongest gust
122.8 km/h
13 November 1972
Hottest feels-like
38.3 °C
21 August 1943
Coldest feels-like
-35.3 °C
14 January 1987
Snowiest day
15.9 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 | +3.6 °C | 59 mm | +18 mm |
| Feb | 3.4 °C | +0.9 °C | 23 mm | -14 mm |
| Mar | 11.9 °C | +4.9 °C | 26 mm | -15 mm |
| Apr | 17.3 °C | +4.4 °C | 19 mm | -23 mm |
| May | 17.5 °C | -0.7 °C | 63 mm | +5 mm |
| Jun | 24.6 °C | +2.9 °C | 48 mm | -15 mm |
| Jul | 24.4 °C | +1.0 °C | 91 mm | +14 mm |
| Aug | 24.6 °C | +1.4 °C | 80 mm | +16 mm |
| Sep | 20.5 °C | +1.7 °C | 57 mm | +9 mm |
| Oct | 12.4 °C | -0.6 °C | 64 mm | +23 mm |
| Nov | 7.1 °C | +0.6 °C | 37 mm | -6 mm |
| Dec | 4.4 °C | +1.7 °C | 24 mm | -21 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 Grodzisk Wielkopolski?
Grodzisk Wielkopolski has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 600 mm of precipitation per year.
What is the hottest day ever recorded in Grodzisk Wielkopolski?
The hottest day measured in Grodzisk Wielkopolski between 1940 and 2025 was 30 June 2019, reaching 38.3 °C.
What is the coldest day in Grodzisk Wielkopolski?
The coldest day measured in Grodzisk Wielkopolski between 1940 and 2025 was 14 January 1987, at -30.0 °C.
Does it snow in Grodzisk Wielkopolski?
Yes. Grodzisk Wielkopolski gets on average 42.9 cm of snow per year and has around 87 frost days.
Has the climate of Grodzisk Wielkopolski warmed?
Yes: Grodzisk Wielkopolski warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grodzisk Wielkopolski?
The wettest day measured in Grodzisk Wielkopolski between 1940 and 2025 was 14 July 2016, with 63 mm of rain in 24 hours.
What was the windiest day in Grodzisk Wielkopolski?
The windiest day measured in Grodzisk Wielkopolski between 1940 and 2025 was 13 November 1972, with winds reaching 53.8 km/h.
What is the warmest month in Grodzisk Wielkopolski?
The warmest month in Grodzisk Wielkopolski is July (18.9 °C on average); the coldest is January (-1.2 °C).
How much does it rain in Grodzisk Wielkopolski?
Grodzisk Wielkopolski receives on average 600 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Grodzisk Wielkopolski?
Grodzisk Wielkopolski gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Grodzisk Wielkopolski?
The heaviest 24-hour snowfall measured in Grodzisk Wielkopolski between 1940 and 2025 was 3 March 1965, with 15.9 cm.
Are there tropical nights in Grodzisk Wielkopolski?
Yes: Grodzisk Wielkopolski has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grodzisk Wielkopolski?
In Grodzisk Wielkopolski, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 21 August 1943, and the lowest was -35.3 °C on 14 January 1987.
Compare Grodzisk Wielkopolski with another city
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Nearby cities
The climate around Grodzisk Wielkopolski