Asikkala climate — normals and trends
Asikkala (Finland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.2 °C and it receives 631 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 (16.9 °C on average) and the coldest is January (-7.5 °C). Rainfall peaks in August.
Asikkala averages 157 frost days, 0 hot days (≥ 30 °C) and 132 rainy days per year.
Asikkala 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 174 to 140 per year over the period.
The hottest day of the period reached 32.0 °C (on 28 July 2010) and the coldest -37.4 °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
AsikkalaPaijat-Hame
- coords
- 61.22°, 25.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.2°C
Average daily high
7.2°C
Average daily low
1.1°C
Annual rainfall
631mm
Sunshine / day
6.8h
Mean relative humidity
81%
Average peak wind
16.2km/h
Seasonal range
24.4°C
Frost days (< 0 °C)
157 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
131.1 cm
Average feels-like high
4.0 °C
Average feels-like low
-2.4 °C
Average peak gust
35.1 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
32.0 °C
28 July 2010
Coldest day
-37.4 °C
10 January 1987
Wettest day
94 mm
12 August 1972
Windiest day
41.8 km/h
12 September 1973
Strongest gust
92.5 km/h
10 February 2020
Hottest feels-like
32.8 °C
8 August 2010
Coldest feels-like
-43.4 °C
10 January 1987
Snowiest day
16.0 cm
14 May 1995
Sunniest day
18.5 h
23 June 1941
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.3 °C | +4.9 °C | 51 mm | +11 mm |
| Feb | -2.1 °C | +2.8 °C | 17 mm | -14 mm |
| Mar | 4.4 °C | +4.5 °C | 29 mm | -4 mm |
| Apr | 8.9 °C | +2.7 °C | 37 mm | -0 mm |
| May | 12.5 °C | -0.8 °C | 40 mm | -5 mm |
| Jun | 17.1 °C | -1.1 °C | 129 mm | +65 mm |
| Jul | 24.0 °C | +3.5 °C | 77 mm | -6 mm |
| Aug | 18.8 °C | 0.0 °C | 106 mm | +24 mm |
| Sep | 16.7 °C | +3.3 °C | 75 mm | +13 mm |
| Oct | 8.5 °C | +1.5 °C | 55 mm | -1 mm |
| Nov | 4.7 °C | +3.4 °C | 44 mm | -7 mm |
| Dec | 2.3 °C | +4.8 °C | 55 mm | +8 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 Asikkala?
Asikkala has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.2 °C and it receives 631 mm of precipitation per year.
What is the hottest day ever recorded in Asikkala?
The hottest day measured in Asikkala between 1940 and 2025 was 28 July 2010, reaching 32.0 °C.
What is the coldest day in Asikkala?
The coldest day measured in Asikkala between 1940 and 2025 was 10 January 1987, at -37.4 °C.
Does it snow in Asikkala?
Yes. Asikkala gets on average 131.1 cm of snow per year and has around 157 frost days.
Has the climate of Asikkala warmed?
Yes: Asikkala warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Asikkala?
The wettest day measured in Asikkala between 1940 and 2025 was 12 August 1972, with 94 mm of rain in 24 hours.
What was the windiest day in Asikkala?
The windiest day measured in Asikkala between 1940 and 2025 was 12 September 1973, with winds reaching 41.8 km/h.
What is the warmest month in Asikkala?
The warmest month in Asikkala is July (16.9 °C on average); the coldest is January (-7.5 °C).
How much does it rain in Asikkala?
Asikkala receives on average 631 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Asikkala?
Asikkala gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Asikkala?
The heaviest 24-hour snowfall measured in Asikkala between 1940 and 2025 was 14 May 1995, with 16.0 cm.
Are there tropical nights in Asikkala?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Asikkala.
What was the most extreme apparent temperature in Asikkala?
In Asikkala, between 1940 and 2025, the highest apparent temperature reached 32.8 °C on 8 August 2010, and the lowest was -43.4 °C on 10 January 1987.
Compare Asikkala with another city
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Nearby cities
The climate around Asikkala