Tomaszów Mazowiecki climate — normals and trends
Tomaszów Mazowiecki (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 633 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 (18.6 °C on average) and the coldest is January (-2.6 °C). Rainfall peaks in July.
Tomaszów Mazowiecki averages 102 frost days, 5 hot days (≥ 30 °C) and 129 rainy days per year.
Tomaszów Mazowiecki 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 83 per year over the period.
The hottest day of the period reached 37.3 °C (on 22 August 1943) and the coldest -29.8 °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
Tomaszów MazowieckiŁódź Voivodeship
- coords
- 51.53°, 20.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
12.1°C
Average daily low
4.5°C
Annual rainfall
633mm
Sunshine / day
7.1h
Mean relative humidity
78%
Average peak wind
19.2km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
102 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
61.8 cm
Average feels-like high
9.2 °C
Average feels-like low
1.2 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.7 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
37.3 °C
22 August 1943
Coldest day
-29.8 °C
11 January 1940
Wettest day
66 mm
29 July 2000
Windiest day
56.6 km/h
20 January 1986
Strongest gust
118.8 km/h
20 January 1986
Hottest feels-like
36.5 °C
29 July 2005
Coldest feels-like
-35.1 °C
11 January 1940
Snowiest day
15.9 cm
31 March 1984
Sunniest day
15.7 h
19 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 | 4.7 °C | +5.0 °C | 42 mm | +4 mm |
| Feb | 2.9 °C | +1.5 °C | 18 mm | -20 mm |
| Mar | 12.0 °C | +5.9 °C | 30 mm | -9 mm |
| Apr | 16.6 °C | +3.9 °C | 19 mm | -29 mm |
| May | 16.3 °C | -1.8 °C | 70 mm | +4 mm |
| Jun | 23.5 °C | +1.9 °C | 48 mm | -25 mm |
| Jul | 24.3 °C | +1.0 °C | 137 mm | +52 mm |
| Aug | 24.5 °C | +1.5 °C | 34 mm | -35 mm |
| Sep | 20.2 °C | +1.7 °C | 56 mm | +4 mm |
| Oct | 11.9 °C | -0.8 °C | 65 mm | +25 mm |
| Nov | 6.7 °C | +0.7 °C | 58 mm | +14 mm |
| Dec | 3.8 °C | +2.1 °C | 19 mm | -23 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 Tomaszów Mazowiecki?
Tomaszów Mazowiecki has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 633 mm of precipitation per year.
What is the hottest day ever recorded in Tomaszów Mazowiecki?
The hottest day measured in Tomaszów Mazowiecki between 1940 and 2025 was 22 August 1943, reaching 37.3 °C.
What is the coldest day in Tomaszów Mazowiecki?
The coldest day measured in Tomaszów Mazowiecki between 1940 and 2025 was 11 January 1940, at -29.8 °C.
Does it snow in Tomaszów Mazowiecki?
Yes. Tomaszów Mazowiecki gets on average 61.8 cm of snow per year and has around 102 frost days.
Has the climate of Tomaszów Mazowiecki warmed?
Yes: Tomaszów Mazowiecki warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tomaszów Mazowiecki?
The wettest day measured in Tomaszów Mazowiecki between 1940 and 2025 was 29 July 2000, with 66 mm of rain in 24 hours.
What was the windiest day in Tomaszów Mazowiecki?
The windiest day measured in Tomaszów Mazowiecki between 1940 and 2025 was 20 January 1986, with winds reaching 56.6 km/h.
What is the warmest month in Tomaszów Mazowiecki?
The warmest month in Tomaszów Mazowiecki is July (18.6 °C on average); the coldest is January (-2.6 °C).
How much does it rain in Tomaszów Mazowiecki?
Tomaszów Mazowiecki receives on average 633 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Tomaszów Mazowiecki?
Tomaszów Mazowiecki 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 Tomaszów Mazowiecki?
The heaviest 24-hour snowfall measured in Tomaszów Mazowiecki between 1940 and 2025 was 31 March 1984, with 15.9 cm.
Are there tropical nights in Tomaszów Mazowiecki?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tomaszów Mazowiecki.
What was the most extreme apparent temperature in Tomaszów Mazowiecki?
In Tomaszów Mazowiecki, between 1940 and 2025, the highest apparent temperature reached 36.5 °C on 29 July 2005, and the lowest was -35.1 °C on 11 January 1940.
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Nearby cities
The climate around Tomaszów Mazowiecki