Kontiolahti climate — normals and trends
Kontiolahti (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.9 °C and it receives 687 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 (-9.9 °C). Rainfall peaks in August.
Kontiolahti averages 171 frost days, 0 hot days (≥ 30 °C) and 140 rainy days per year.
Kontiolahti has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 184 to 158 per year over the period.
The hottest day of the period reached 31.6 °C (on 29 July 2010) and the coldest -35.5 °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
KontiolahtiNorth Karelia
- coords
- 62.76°, 29.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.9°C
Average daily high
5.5°C
Average daily low
0.2°C
Annual rainfall
687mm
Sunshine / day
6.6h
Mean relative humidity
82%
Average peak wind
16.1km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
171 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
165.3 cm
Average feels-like high
2.3 °C
Average feels-like low
-3.4 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.30 · 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
31.6 °C
29 July 2010
Coldest day
-35.5 °C
10 January 1987
Wettest day
49 mm
19 September 2007
Windiest day
40.5 km/h
18 April 1976
Strongest gust
91.4 km/h
20 January 1976
Hottest feels-like
34.0 °C
28 July 2010
Coldest feels-like
-41.5 °C
6 February 1956
Snowiest day
15.9 cm
21 November 1980
Sunniest day
19.0 h
19 June 2005
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 | -3.1 °C | +4.5 °C | 53 mm | +11 mm |
| Feb | -3.6 °C | +3.5 °C | 14 mm | -20 mm |
| Mar | 2.1 °C | +4.0 °C | 48 mm | +12 mm |
| Apr | 6.1 °C | +2.0 °C | 36 mm | -2 mm |
| May | 11.7 °C | +0.5 °C | 70 mm | +26 mm |
| Jun | 16.8 °C | -0.3 °C | 80 mm | +9 mm |
| Jul | 23.4 °C | +3.6 °C | 63 mm | -22 mm |
| Aug | 18.5 °C | +0.8 °C | 86 mm | -5 mm |
| Sep | 15.7 °C | +3.6 °C | 69 mm | -5 mm |
| Oct | 7.4 °C | +2.1 °C | 47 mm | -16 mm |
| Nov | 3.0 °C | +3.5 °C | 71 mm | +14 mm |
| Dec | -0.3 °C | +4.2 °C | 75 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 Kontiolahti?
Kontiolahti has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.9 °C and it receives 687 mm of precipitation per year.
What is the hottest day ever recorded in Kontiolahti?
The hottest day measured in Kontiolahti between 1940 and 2025 was 29 July 2010, reaching 31.6 °C.
What is the coldest day in Kontiolahti?
The coldest day measured in Kontiolahti between 1940 and 2025 was 10 January 1987, at -35.5 °C.
Does it snow in Kontiolahti?
Yes. Kontiolahti gets on average 165.3 cm of snow per year and has around 171 frost days.
Has the climate of Kontiolahti warmed?
Yes: Kontiolahti warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kontiolahti?
The wettest day measured in Kontiolahti between 1940 and 2025 was 19 September 2007, with 49 mm of rain in 24 hours.
What was the windiest day in Kontiolahti?
The windiest day measured in Kontiolahti between 1940 and 2025 was 18 April 1976, with winds reaching 40.5 km/h.
What is the warmest month in Kontiolahti?
The warmest month in Kontiolahti is July (16.8 °C on average); the coldest is January (-9.9 °C).
How much does it rain in Kontiolahti?
Kontiolahti receives on average 687 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Kontiolahti?
Kontiolahti gets on average 6.6 hours of sunshine per day, roughly 2,409 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kontiolahti?
The heaviest 24-hour snowfall measured in Kontiolahti between 1940 and 2025 was 21 November 1980, with 15.9 cm.
Are there tropical nights in Kontiolahti?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kontiolahti.
What was the most extreme apparent temperature in Kontiolahti?
In Kontiolahti, between 1940 and 2025, the highest apparent temperature reached 34.0 °C on 28 July 2010, and the lowest was -41.5 °C on 6 February 1956.
Compare Kontiolahti with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kontiolahti