Kozy climate — normals and trends
Kozy (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.2 °C and it receives 1,078 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 (17.0 °C on average) and the coldest is January (-3.6 °C). Rainfall peaks in July.
Kozy averages 119 frost days, 2 hot days (≥ 30 °C) and 171 rainy days per year.
Kozy has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 142 to 96 per year over the period.
The hottest day of the period reached 34.6 °C (on 8 August 2013) and the coldest -29.5 °C (on 11 January 1940).
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
KozySilesia
- coords
- 49.85°, 19.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.2°C
Average daily high
11.1°C
Average daily low
3.3°C
Annual rainfall
1,078mm
Sunshine / day
7.5h
Mean relative humidity
81%
Average peak wind
14.4km/h
Seasonal range
20.6°C
Frost days (< 0 °C)
119 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
171 d/yr
Annual snowfall
151.5 cm
Average feels-like high
8.9 °C
Average feels-like low
0.5 °C
Average peak gust
34.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
34.6 °C
8 August 2013
Coldest day
-29.5 °C
11 January 1940
Wettest day
93 mm
16 July 1957
Windiest day
43.1 km/h
12 February 1962
Strongest gust
121.7 km/h
19 January 2007
Hottest feels-like
38.6 °C
8 July 1957
Coldest feels-like
-34.5 °C
11 January 1940
Snowiest day
20.9 cm
14 October 2009
Sunniest day
15.4 h
2 July 2025
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 | 4.2 °C | +5.1 °C | 65 mm | -0 mm |
| Feb | 3.4 °C | +2.4 °C | 31 mm | -34 mm |
| Mar | 11.0 °C | +5.3 °C | 65 mm | -3 mm |
| Apr | 14.9 °C | +3.1 °C | 61 mm | -19 mm |
| May | 14.6 °C | -2.1 °C | 111 mm | -6 mm |
| Jun | 22.2 °C | +2.4 °C | 113 mm | -16 mm |
| Jul | 22.2 °C | +0.7 °C | 216 mm | +75 mm |
| Aug | 22.9 °C | +1.4 °C | 73 mm | -43 mm |
| Sep | 19.0 °C | +1.6 °C | 119 mm | +29 mm |
| Oct | 11.1 °C | -1.2 °C | 105 mm | +37 mm |
| Nov | 7.0 °C | +1.3 °C | 102 mm | +30 mm |
| Dec | 3.7 °C | +2.8 °C | 20 mm | -49 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 Kozy?
Kozy has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.2 °C and it receives 1,078 mm of precipitation per year.
What is the hottest day ever recorded in Kozy?
The hottest day measured in Kozy between 1940 and 2025 was 8 August 2013, reaching 34.6 °C.
What is the coldest day in Kozy?
The coldest day measured in Kozy between 1940 and 2025 was 11 January 1940, at -29.5 °C.
Does it snow in Kozy?
Yes. Kozy gets on average 151.5 cm of snow per year and has around 119 frost days.
Has the climate of Kozy warmed?
Yes: Kozy warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kozy?
The wettest day measured in Kozy between 1940 and 2025 was 16 July 1957, with 93 mm of rain in 24 hours.
What was the windiest day in Kozy?
The windiest day measured in Kozy between 1940 and 2025 was 12 February 1962, with winds reaching 43.1 km/h.
What is the warmest month in Kozy?
The warmest month in Kozy is July (17.0 °C on average); the coldest is January (-3.6 °C).
How much does it rain in Kozy?
Kozy receives on average 1,078 mm of precipitation per year, spread over about 171 rainy days.
Is it sunny in Kozy?
Kozy gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kozy?
The heaviest 24-hour snowfall measured in Kozy between 1940 and 2025 was 14 October 2009, with 20.9 cm.
Are there tropical nights in Kozy?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kozy.
What was the most extreme apparent temperature in Kozy?
In Kozy, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 8 July 1957, and the lowest was -34.5 °C on 11 January 1940.
Compare Kozy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kozy