Valkeakoski climate — normals and trends
Valkeakoski (Finland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.4 °C and it receives 622 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 (16.8 °C on average) and the coldest is January (-6.9 °C). Rainfall peaks in July.
Valkeakoski averages 153 frost days, 0 hot days (≥ 30 °C) and 128 rainy days per year.
Valkeakoski 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 172 to 134 per year over the period.
The hottest day of the period reached 30.4 °C (on 29 July 2010) and the coldest -36.4 °C (on 10 January 1987).
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
ValkeakoskiPirkanmaa
- coords
- 61.26°, 24.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.4°C
Average daily high
7.2°C
Average daily low
1.5°C
Annual rainfall
622mm
Sunshine / day
6.9h
Mean relative humidity
82%
Average peak wind
16.2km/h
Seasonal range
23.7°C
Frost days (< 0 °C)
153 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
128 d/yr
Annual snowfall
120.0 cm
Average feels-like high
4.1 °C
Average feels-like low
-1.9 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.35 · 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
30.4 °C
29 July 2010
Coldest day
-36.4 °C
10 January 1987
Wettest day
53 mm
12 August 1972
Windiest day
42.7 km/h
23 January 1995
Strongest gust
92.5 km/h
23 January 1995
Hottest feels-like
32.1 °C
8 August 2010
Coldest feels-like
-42.5 °C
10 January 1987
Snowiest day
17.1 cm
18 April 1972
Sunniest day
18.8 h
21 June 2012
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 | 0.0 °C | +4.6 °C | 51 mm | +13 mm |
| Feb | -1.3 °C | +3.1 °C | 20 mm | -11 mm |
| Mar | 4.4 °C | +4.2 °C | 25 mm | -7 mm |
| Apr | 8.7 °C | +2.6 °C | 40 mm | +3 mm |
| May | 12.1 °C | -1.0 °C | 39 mm | -7 mm |
| Jun | 16.8 °C | -1.0 °C | 107 mm | +43 mm |
| Jul | 23.5 °C | +3.4 °C | 74 mm | -9 mm |
| Aug | 18.3 °C | -0.2 °C | 91 mm | +8 mm |
| Sep | 16.4 °C | +3.2 °C | 72 mm | +13 mm |
| Oct | 8.4 °C | +1.3 °C | 56 mm | +2 mm |
| Nov | 4.9 °C | +3.3 °C | 55 mm | +5 mm |
| Dec | 3.0 °C | +5.0 °C | 57 mm | +12 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 Valkeakoski?
Valkeakoski has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.4 °C and it receives 622 mm of precipitation per year.
What is the hottest day ever recorded in Valkeakoski?
The hottest day measured in Valkeakoski between 1940 and 2025 was 29 July 2010, reaching 30.4 °C.
What is the coldest day in Valkeakoski?
The coldest day measured in Valkeakoski between 1940 and 2025 was 10 January 1987, at -36.4 °C.
Does it snow in Valkeakoski?
Yes. Valkeakoski gets on average 120.0 cm of snow per year and has around 153 frost days.
Has the climate of Valkeakoski warmed?
Yes: Valkeakoski warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Valkeakoski?
The wettest day measured in Valkeakoski between 1940 and 2025 was 12 August 1972, with 53 mm of rain in 24 hours.
What was the windiest day in Valkeakoski?
The windiest day measured in Valkeakoski between 1940 and 2025 was 23 January 1995, with winds reaching 42.7 km/h.
What is the warmest month in Valkeakoski?
The warmest month in Valkeakoski is July (16.8 °C on average); the coldest is January (-6.9 °C).
How much does it rain in Valkeakoski?
Valkeakoski receives on average 622 mm of precipitation per year, spread over about 128 rainy days.
Is it sunny in Valkeakoski?
Valkeakoski gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Valkeakoski?
The heaviest 24-hour snowfall measured in Valkeakoski between 1940 and 2025 was 18 April 1972, with 17.1 cm.
Are there tropical nights in Valkeakoski?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Valkeakoski.
What was the most extreme apparent temperature in Valkeakoski?
In Valkeakoski, between 1940 and 2025, the highest apparent temperature reached 32.1 °C on 8 August 2010, and the lowest was -42.5 °C on 10 January 1987.
Compare Valkeakoski with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Valkeakoski