Grudziądz climate — normals and trends
Grudziądz (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.0 °C and it receives 607 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 (18.0 °C on average) and the coldest is January (-2.3 °C). Rainfall peaks in July.
Grudziądz averages 99 frost days, 2 hot days (≥ 30 °C) and 128 rainy days per year.
Grudziądz has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 119 to 79 per year over the period.
The hottest day of the period reached 36.0 °C (on 10 August 1992) and the coldest -29.7 °C (on 29 January 1941).
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
GrudziądzKujawsko-Pomorskie
- coords
- 53.48°, 18.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.0°C
Average daily high
11.4°C
Average daily low
4.5°C
Annual rainfall
607mm
Sunshine / day
7.2h
Mean relative humidity
80%
Average peak wind
19.6km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
99 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
128 d/yr
Annual snowfall
52.5 cm
Average feels-like high
8.6 °C
Average feels-like low
1.2 °C
Average peak gust
36.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.40 · 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
36.0 °C
10 August 1992
Coldest day
-29.7 °C
29 January 1941
Wettest day
64 mm
28 July 2025
Windiest day
58.2 km/h
17 January 1955
Strongest gust
106.6 km/h
11 April 1997
Hottest feels-like
36.9 °C
11 July 1959
Coldest feels-like
-35.2 °C
29 January 1941
Snowiest day
19.8 cm
4 April 1970
Sunniest day
16.1 h
18 June 2021
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 | 4.1 °C | +4.3 °C | 60 mm | +22 mm |
| Feb | 2.7 °C | +1.7 °C | 12 mm | -22 mm |
| Mar | 10.9 °C | +5.4 °C | 22 mm | -14 mm |
| Apr | 15.5 °C | +3.7 °C | 20 mm | -22 mm |
| May | 15.4 °C | -1.6 °C | 66 mm | +5 mm |
| Jun | 21.5 °C | +1.0 °C | 48 mm | -19 mm |
| Jul | 22.7 °C | +0.5 °C | 222 mm | +135 mm |
| Aug | 22.0 °C | -0.1 °C | 63 mm | -3 mm |
| Sep | 19.6 °C | +1.8 °C | 65 mm | +15 mm |
| Oct | 11.9 °C | -0.2 °C | 73 mm | +30 mm |
| Nov | 5.8 °C | +0.2 °C | 44 mm | +1 mm |
| Dec | 4.1 °C | +2.3 °C | 17 mm | -26 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 Grudziądz?
Grudziądz has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.0 °C and it receives 607 mm of precipitation per year.
What is the hottest day ever recorded in Grudziądz?
The hottest day measured in Grudziądz between 1940 and 2025 was 10 August 1992, reaching 36.0 °C.
What is the coldest day in Grudziądz?
The coldest day measured in Grudziądz between 1940 and 2025 was 29 January 1941, at -29.7 °C.
Does it snow in Grudziądz?
Yes. Grudziądz gets on average 52.5 cm of snow per year and has around 99 frost days.
Has the climate of Grudziądz warmed?
Yes: Grudziądz warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grudziądz?
The wettest day measured in Grudziądz between 1940 and 2025 was 28 July 2025, with 64 mm of rain in 24 hours.
What was the windiest day in Grudziądz?
The windiest day measured in Grudziądz between 1940 and 2025 was 17 January 1955, with winds reaching 58.2 km/h.
What is the warmest month in Grudziądz?
The warmest month in Grudziądz is July (18.0 °C on average); the coldest is January (-2.3 °C).
How much does it rain in Grudziądz?
Grudziądz receives on average 607 mm of precipitation per year, spread over about 128 rainy days.
Is it sunny in Grudziądz?
Grudziądz gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Grudziądz?
The heaviest 24-hour snowfall measured in Grudziądz between 1940 and 2025 was 4 April 1970, with 19.8 cm.
Are there tropical nights in Grudziądz?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Grudziądz.
What was the most extreme apparent temperature in Grudziądz?
In Grudziądz, between 1940 and 2025, the highest apparent temperature reached 36.9 °C on 11 July 1959, and the lowest was -35.2 °C on 29 January 1941.
Compare Grudziądz with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Grudziądz