Vlašim climate — normals and trends
Vlašim (Czechia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.2 °C and it receives 746 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 (17.7 °C on average) and the coldest is January (-1.9 °C). Rainfall peaks in July.
Vlašim averages 97 frost days, 3 hot days (≥ 30 °C) and 142 rainy days per year.
Vlašim has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 118 to 76 per year over the period.
The hottest day of the period reached 35.6 °C (on 13 August 2003) and the coldest -29.4 °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
VlašimCentral Bohemia
- coords
- 49.71°, 14.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.2°C
Average daily high
11.9°C
Average daily low
4.6°C
Annual rainfall
746mm
Sunshine / day
7.6h
Mean relative humidity
78%
Average peak wind
16.4km/h
Seasonal range
19.6°C
Frost days (< 0 °C)
97 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
142 d/yr
Annual snowfall
74.9 cm
Average feels-like high
9.3 °C
Average feels-like low
1.7 °C
Average peak gust
35.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.52 · 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
35.6 °C
13 August 2003
Coldest day
-29.4 °C
11 January 1940
Wettest day
78 mm
3 August 1983
Windiest day
48.5 km/h
18 January 2007
Strongest gust
125.6 km/h
19 January 2007
Hottest feels-like
38.8 °C
20 August 1943
Coldest feels-like
-34.5 °C
11 January 1940
Snowiest day
21.1 cm
23 April 1980
Sunniest day
16.0 h
13 June 2009
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 | 3.3 °C | +2.9 °C | 45 mm | +1 mm |
| Feb | 3.5 °C | +1.2 °C | 15 mm | -28 mm |
| Mar | 11.1 °C | +4.1 °C | 41 mm | -9 mm |
| Apr | 15.7 °C | +3.3 °C | 42 mm | -14 mm |
| May | 16.6 °C | -0.5 °C | 56 mm | -26 mm |
| Jun | 23.8 °C | +3.3 °C | 76 mm | -13 mm |
| Jul | 23.2 °C | +0.9 °C | 92 mm | -3 mm |
| Aug | 24.1 °C | +1.9 °C | 73 mm | -11 mm |
| Sep | 19.2 °C | +1.2 °C | 76 mm | +17 mm |
| Oct | 11.5 °C | -0.8 °C | 48 mm | +2 mm |
| Nov | 6.2 °C | +0.4 °C | 54 mm | +5 mm |
| Dec | 3.5 °C | +1.6 °C | 23 mm | -26 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 Vlašim?
Vlašim has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.2 °C and it receives 746 mm of precipitation per year.
What is the hottest day ever recorded in Vlašim?
The hottest day measured in Vlašim between 1940 and 2025 was 13 August 2003, reaching 35.6 °C.
What is the coldest day in Vlašim?
The coldest day measured in Vlašim between 1940 and 2025 was 11 January 1940, at -29.4 °C.
Does it snow in Vlašim?
Yes. Vlašim gets on average 74.9 cm of snow per year and has around 97 frost days.
Has the climate of Vlašim warmed?
Yes: Vlašim warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Vlašim?
The wettest day measured in Vlašim between 1940 and 2025 was 3 August 1983, with 78 mm of rain in 24 hours.
What was the windiest day in Vlašim?
The windiest day measured in Vlašim between 1940 and 2025 was 18 January 2007, with winds reaching 48.5 km/h.
What is the warmest month in Vlašim?
The warmest month in Vlašim is July (17.7 °C on average); the coldest is January (-1.9 °C).
How much does it rain in Vlašim?
Vlašim receives on average 746 mm of precipitation per year, spread over about 142 rainy days.
Is it sunny in Vlašim?
Vlašim gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Vlašim?
The heaviest 24-hour snowfall measured in Vlašim between 1940 and 2025 was 23 April 1980, with 21.1 cm.
Are there tropical nights in Vlašim?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Vlašim.
What was the most extreme apparent temperature in Vlašim?
In Vlašim, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 20 August 1943, and the lowest was -34.5 °C on 11 January 1940.
Compare Vlašim with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Vlašim