Hajnówka climate — normals and trends
Hajnówka (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.4 °C and it receives 656 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 (18.4 °C on average) and the coldest is January (-4.1 °C). Rainfall peaks in July.
Hajnówka averages 116 frost days, 4 hot days (≥ 30 °C) and 132 rainy days per year.
Hajnówka has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 135 to 97 per year over the period.
The hottest day of the period reached 36.0 °C (on 8 August 2015) and the coldest -35.9 °C (on 12 January 1950).
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
HajnówkaPodlasie
- coords
- 52.74°, 23.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.4°C
Average daily high
11.0°C
Average daily low
3.7°C
Annual rainfall
656mm
Sunshine / day
7.1h
Mean relative humidity
79%
Average peak wind
18.3km/h
Seasonal range
22.5°C
Frost days (< 0 °C)
116 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
77.4 cm
Average feels-like high
8.1 °C
Average feels-like low
0.4 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °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
36.0 °C
8 August 2015
Coldest day
-35.9 °C
12 January 1950
Wettest day
66 mm
4 August 1972
Windiest day
50.8 km/h
22 February 1953
Strongest gust
112.3 km/h
7 March 1983
Hottest feels-like
36.7 °C
17 July 2007
Coldest feels-like
-41.2 °C
12 January 1950
Snowiest day
15.4 cm
2 April 2022
Sunniest day
15.9 h
24 June 2022
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 | 3.8 °C | +5.8 °C | 40 mm | +1 mm |
| Feb | 0.8 °C | +1.4 °C | 18 mm | -20 mm |
| Mar | 11.2 °C | +6.9 °C | 27 mm | -11 mm |
| Apr | 16.0 °C | +4.2 °C | 22 mm | -29 mm |
| May | 15.6 °C | -2.2 °C | 74 mm | +7 mm |
| Jun | 22.3 °C | +1.0 °C | 70 mm | -4 mm |
| Jul | 24.1 °C | +1.2 °C | 132 mm | +49 mm |
| Aug | 24.0 °C | +1.5 °C | 35 mm | -37 mm |
| Sep | 20.7 °C | +3.2 °C | 59 mm | +1 mm |
| Oct | 11.1 °C | 0.0 °C | 65 mm | +19 mm |
| Nov | 6.1 °C | +1.6 °C | 45 mm | -0 mm |
| Dec | 3.3 °C | +3.0 °C | 24 mm | -20 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 Hajnówka?
Hajnówka has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.4 °C and it receives 656 mm of precipitation per year.
What is the hottest day ever recorded in Hajnówka?
The hottest day measured in Hajnówka between 1940 and 2025 was 8 August 2015, reaching 36.0 °C.
What is the coldest day in Hajnówka?
The coldest day measured in Hajnówka between 1940 and 2025 was 12 January 1950, at -35.9 °C.
Does it snow in Hajnówka?
Yes. Hajnówka gets on average 77.4 cm of snow per year and has around 116 frost days.
Has the climate of Hajnówka warmed?
Yes: Hajnówka warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hajnówka?
The wettest day measured in Hajnówka between 1940 and 2025 was 4 August 1972, with 66 mm of rain in 24 hours.
What was the windiest day in Hajnówka?
The windiest day measured in Hajnówka between 1940 and 2025 was 22 February 1953, with winds reaching 50.8 km/h.
What is the warmest month in Hajnówka?
The warmest month in Hajnówka is July (18.4 °C on average); the coldest is January (-4.1 °C).
How much does it rain in Hajnówka?
Hajnówka receives on average 656 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Hajnówka?
Hajnówka 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 Hajnówka?
The heaviest 24-hour snowfall measured in Hajnówka between 1940 and 2025 was 2 April 2022, with 15.4 cm.
Are there tropical nights in Hajnówka?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Hajnówka.
What was the most extreme apparent temperature in Hajnówka?
In Hajnówka, between 1940 and 2025, the highest apparent temperature reached 36.7 °C on 17 July 2007, and the lowest was -41.2 °C on 12 January 1950.
Compare Hajnówka with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hajnówka