Joutseno climate — normals and trends
Joutseno (Finland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.3 °C and it receives 637 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 (17.5 °C on average) and the coldest is January (-7.9 °C). Rainfall peaks in August.
Joutseno averages 160 frost days, 1 hot days (≥ 30 °C) and 133 rainy days per year.
Joutseno has warmed by +2.5 °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 176 to 144 per year over the period.
The hottest day of the period reached 33.9 °C (on 8 August 2010) and the coldest -37.5 °C (on 8 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
JoutsenoSouth Karelia
- coords
- 61.12°, 28.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.3°C
Average daily high
7.5°C
Average daily low
0.9°C
Annual rainfall
637mm
Sunshine / day
7.2h
Mean relative humidity
80%
Average peak wind
16.5km/h
Seasonal range
25.4°C
Frost days (< 0 °C)
160 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
143.2 cm
Average feels-like high
4.3 °C
Average feels-like low
-2.6 °C
Average peak gust
35.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.36 · 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
33.9 °C
8 August 2010
Coldest day
-37.5 °C
8 January 1987
Wettest day
40 mm
8 August 1966
Windiest day
41.8 km/h
7 September 1977
Strongest gust
90.4 km/h
1 December 1999
Hottest feels-like
35.2 °C
26 July 2010
Coldest feels-like
-43.2 °C
8 January 1987
Snowiest day
16.7 cm
1 November 2006
Sunniest day
18.0 h
9 June 2021
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 | -0.2 °C | +5.3 °C | 70 mm | +26 mm |
| Feb | -2.5 °C | +2.7 °C | 9 mm | -28 mm |
| Mar | 4.2 °C | +4.4 °C | 29 mm | -7 mm |
| Apr | 9.1 °C | +2.5 °C | 46 mm | +9 mm |
| May | 13.2 °C | -1.1 °C | 91 mm | +47 mm |
| Jun | 18.0 °C | -1.2 °C | 115 mm | +57 mm |
| Jul | 25.3 °C | +3.8 °C | 58 mm | -14 mm |
| Aug | 19.6 °C | 0.0 °C | 103 mm | +24 mm |
| Sep | 17.6 °C | +3.7 °C | 57 mm | -6 mm |
| Oct | 8.8 °C | +1.7 °C | 40 mm | -17 mm |
| Nov | 4.3 °C | +3.1 °C | 62 mm | +5 mm |
| Dec | 1.9 °C | +4.6 °C | 49 mm | -5 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 Joutseno?
Joutseno has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.3 °C and it receives 637 mm of precipitation per year.
What is the hottest day ever recorded in Joutseno?
The hottest day measured in Joutseno between 1940 and 2025 was 8 August 2010, reaching 33.9 °C.
What is the coldest day in Joutseno?
The coldest day measured in Joutseno between 1940 and 2025 was 8 January 1987, at -37.5 °C.
Does it snow in Joutseno?
Yes. Joutseno gets on average 143.2 cm of snow per year and has around 160 frost days.
Has the climate of Joutseno warmed?
Yes: Joutseno warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Joutseno?
The wettest day measured in Joutseno between 1940 and 2025 was 8 August 1966, with 40 mm of rain in 24 hours.
What was the windiest day in Joutseno?
The windiest day measured in Joutseno between 1940 and 2025 was 7 September 1977, with winds reaching 41.8 km/h.
What is the warmest month in Joutseno?
The warmest month in Joutseno is July (17.5 °C on average); the coldest is January (-7.9 °C).
How much does it rain in Joutseno?
Joutseno receives on average 637 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Joutseno?
Joutseno gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Joutseno?
The heaviest 24-hour snowfall measured in Joutseno between 1940 and 2025 was 1 November 2006, with 16.7 cm.
Are there tropical nights in Joutseno?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Joutseno.
What was the most extreme apparent temperature in Joutseno?
In Joutseno, between 1940 and 2025, the highest apparent temperature reached 35.2 °C on 26 July 2010, and the lowest was -43.2 °C on 8 January 1987.
Compare Joutseno with another city
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Nearby cities
The climate around Joutseno