Jastrowie climate — normals and trends
Jastrowie (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.7 °C and it receives 642 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 (17.5 °C on average) and the coldest is January (-2.2 °C). Rainfall peaks in July.
Jastrowie averages 101 frost days, 2 hot days (≥ 30 °C) and 134 rainy days per year.
Jastrowie 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 121 to 81 per year over the period.
The hottest day of the period reached 36.4 °C (on 10 August 1992) and the coldest -29.4 °C (on 1 February 1956).
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
JastrowieGreater Poland
- coords
- 53.42°, 16.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.7°C
Average daily high
11.2°C
Average daily low
4.3°C
Annual rainfall
642mm
Sunshine / day
7.1h
Mean relative humidity
81%
Average peak wind
19.1km/h
Seasonal range
19.7°C
Frost days (< 0 °C)
101 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
58.4 cm
Average feels-like high
8.3 °C
Average feels-like low
1.0 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
36.4 °C
10 August 1992
Coldest day
-29.4 °C
1 February 1956
Wettest day
69 mm
13 July 2024
Windiest day
54.8 km/h
24 November 1984
Strongest gust
107.6 km/h
23 February 2008
Hottest feels-like
37.2 °C
11 July 1959
Coldest feels-like
-35.7 °C
1 February 1956
Snowiest day
15.4 cm
3 March 1965
Sunniest day
16.0 h
8 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 3.2 °C | +3.3 °C | 70 mm | +25 mm |
| Feb | 2.6 °C | +1.4 °C | 21 mm | -18 mm |
| Mar | 10.4 °C | +5.0 °C | 16 mm | -25 mm |
| Apr | 15.7 °C | +4.2 °C | 19 mm | -26 mm |
| May | 15.7 °C | -1.1 °C | 52 mm | -8 mm |
| Jun | 21.6 °C | +1.5 °C | 74 mm | +6 mm |
| Jul | 22.3 °C | +0.7 °C | 134 mm | +47 mm |
| Aug | 22.0 °C | +0.6 °C | 58 mm | -11 mm |
| Sep | 19.5 °C | +2.2 °C | 48 mm | -5 mm |
| Oct | 11.5 °C | -0.2 °C | 77 mm | +34 mm |
| Nov | 6.0 °C | +0.6 °C | 32 mm | -13 mm |
| Dec | 3.9 °C | +2.2 °C | 16 mm | -30 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 Jastrowie?
Jastrowie has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.7 °C and it receives 642 mm of precipitation per year.
What is the hottest day ever recorded in Jastrowie?
The hottest day measured in Jastrowie between 1940 and 2025 was 10 August 1992, reaching 36.4 °C.
What is the coldest day in Jastrowie?
The coldest day measured in Jastrowie between 1940 and 2025 was 1 February 1956, at -29.4 °C.
Does it snow in Jastrowie?
Yes. Jastrowie gets on average 58.4 cm of snow per year and has around 101 frost days.
Has the climate of Jastrowie warmed?
Yes: Jastrowie warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jastrowie?
The wettest day measured in Jastrowie between 1940 and 2025 was 13 July 2024, with 69 mm of rain in 24 hours.
What was the windiest day in Jastrowie?
The windiest day measured in Jastrowie between 1940 and 2025 was 24 November 1984, with winds reaching 54.8 km/h.
What is the warmest month in Jastrowie?
The warmest month in Jastrowie is July (17.5 °C on average); the coldest is January (-2.2 °C).
How much does it rain in Jastrowie?
Jastrowie receives on average 642 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Jastrowie?
Jastrowie gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jastrowie?
The heaviest 24-hour snowfall measured in Jastrowie between 1940 and 2025 was 3 March 1965, with 15.4 cm.
Are there tropical nights in Jastrowie?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Jastrowie.
What was the most extreme apparent temperature in Jastrowie?
In Jastrowie, between 1940 and 2025, the highest apparent temperature reached 37.2 °C on 11 July 1959, and the lowest was -35.7 °C on 1 February 1956.
Compare Jastrowie with another city
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Nearby cities
The climate around Jastrowie