Chojna climate — normals and trends
Chojna (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 610 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 (18.3 °C on average) and the coldest is January (-0.7 °C). Rainfall peaks in July.
Chojna averages 81 frost days, 3 hot days (≥ 30 °C) and 129 rainy days per year.
Chojna 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 99 to 63 per year over the period.
The hottest day of the period reached 37.2 °C (on 1 August 1994) and the coldest -26.6 °C (on 9 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
ChojnaWest Pomerania
- coords
- 52.96°, 14.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
12.2°C
Average daily low
5.4°C
Annual rainfall
610mm
Sunshine / day
7.3h
Mean relative humidity
79%
Average peak wind
18.1km/h
Seasonal range
19.0°C
Frost days (< 0 °C)
81 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
42.1 cm
Average feels-like high
9.6 °C
Average feels-like low
2.4 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
1 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 = 0.45 · 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
37.2 °C
1 August 1994
Coldest day
-26.6 °C
9 February 1956
Wettest day
65 mm
8 August 1978
Windiest day
56.3 km/h
13 November 1972
Strongest gust
111.6 km/h
30 January 2022
Hottest feels-like
38.1 °C
3 August 1943
Coldest feels-like
-31.8 °C
9 February 1956
Snowiest day
15.8 cm
11 December 1990
Sunniest day
16.0 h
5 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 | 4.1 °C | +2.8 °C | 73 mm | +29 mm |
| Feb | 4.2 °C | +1.5 °C | 30 mm | -9 mm |
| Mar | 11.4 °C | +4.5 °C | 16 mm | -26 mm |
| Apr | 16.7 °C | +4.2 °C | 13 mm | -33 mm |
| May | 17.5 °C | 0.0 °C | 42 mm | -15 mm |
| Jun | 23.7 °C | +2.9 °C | 41 mm | -23 mm |
| Jul | 23.3 °C | +0.8 °C | 141 mm | +67 mm |
| Aug | 23.9 °C | +1.6 °C | 40 mm | -24 mm |
| Sep | 20.3 °C | +2.0 °C | 84 mm | +35 mm |
| Oct | 12.8 °C | +0.1 °C | 56 mm | +14 mm |
| Nov | 7.6 °C | +1.1 °C | 35 mm | -11 mm |
| Dec | 5.0 °C | +2.1 °C | 22 mm | -25 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 Chojna?
Chojna has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 610 mm of precipitation per year.
What is the hottest day ever recorded in Chojna?
The hottest day measured in Chojna between 1940 and 2025 was 1 August 1994, reaching 37.2 °C.
What is the coldest day in Chojna?
The coldest day measured in Chojna between 1940 and 2025 was 9 February 1956, at -26.6 °C.
Does it snow in Chojna?
Yes. Chojna gets on average 42.1 cm of snow per year and has around 81 frost days.
Has the climate of Chojna warmed?
Yes: Chojna warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chojna?
The wettest day measured in Chojna between 1940 and 2025 was 8 August 1978, with 65 mm of rain in 24 hours.
What was the windiest day in Chojna?
The windiest day measured in Chojna between 1940 and 2025 was 13 November 1972, with winds reaching 56.3 km/h.
What is the warmest month in Chojna?
The warmest month in Chojna is July (18.3 °C on average); the coldest is January (-0.7 °C).
How much does it rain in Chojna?
Chojna receives on average 610 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Chojna?
Chojna 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 Chojna?
The heaviest 24-hour snowfall measured in Chojna between 1940 and 2025 was 11 December 1990, with 15.8 cm.
Are there tropical nights in Chojna?
Yes: Chojna has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chojna?
In Chojna, between 1940 and 2025, the highest apparent temperature reached 38.1 °C on 3 August 1943, and the lowest was -31.8 °C on 9 February 1956.
Compare Chojna with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chojna