Lieksa climate — normals and trends
Lieksa (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.5 °C and it receives 673 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 (16.6 °C on average) and the coldest is January (-10.4 °C). Rainfall peaks in August.
Lieksa averages 177 frost days, 0 hot days (≥ 30 °C) and 140 rainy days per year.
Lieksa 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 188 to 166 per year over the period.
The hottest day of the period reached 32.8 °C (on 29 July 2010) and the coldest -36.7 °C (on 7 January 1985).
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
LieksaNorth Karelia
- coords
- 63.32°, 30.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.5°C
Average daily high
5.3°C
Average daily low
-0.3°C
Annual rainfall
673mm
Sunshine / day
6.5h
Mean relative humidity
81%
Average peak wind
16.3km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
177 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
167.1 cm
Average feels-like high
1.9 °C
Average feels-like low
-4.0 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.28 · 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
32.8 °C
29 July 2010
Coldest day
-36.7 °C
7 January 1985
Wettest day
46 mm
19 September 2007
Windiest day
45.2 km/h
18 April 1976
Strongest gust
93.6 km/h
26 December 1992
Hottest feels-like
33.5 °C
29 July 2010
Coldest feels-like
-42.5 °C
9 February 1966
Snowiest day
15.4 cm
21 November 1980
Sunniest day
19.4 h
18 June 2023
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 | -3.8 °C | +4.2 °C | 47 mm | +8 mm |
| Feb | -3.8 °C | +3.6 °C | 14 mm | -20 mm |
| Mar | 2.0 °C | +4.1 °C | 50 mm | +15 mm |
| Apr | 6.0 °C | +1.9 °C | 20 mm | -20 mm |
| May | 11.7 °C | +0.4 °C | 66 mm | +20 mm |
| Jun | 16.6 °C | -0.6 °C | 74 mm | +0 mm |
| Jul | 23.7 °C | +3.8 °C | 51 mm | -34 mm |
| Aug | 18.5 °C | +0.9 °C | 77 mm | -9 mm |
| Sep | 15.6 °C | +3.8 °C | 94 mm | +23 mm |
| Oct | 7.1 °C | +2.3 °C | 44 mm | -15 mm |
| Nov | 2.3 °C | +3.3 °C | 66 mm | +11 mm |
| Dec | -1.0 °C | +4.0 °C | 79 mm | +29 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 Lieksa?
Lieksa has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.5 °C and it receives 673 mm of precipitation per year.
What is the hottest day ever recorded in Lieksa?
The hottest day measured in Lieksa between 1940 and 2025 was 29 July 2010, reaching 32.8 °C.
What is the coldest day in Lieksa?
The coldest day measured in Lieksa between 1940 and 2025 was 7 January 1985, at -36.7 °C.
Does it snow in Lieksa?
Yes. Lieksa gets on average 167.1 cm of snow per year and has around 177 frost days.
Has the climate of Lieksa warmed?
Yes: Lieksa warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lieksa?
The wettest day measured in Lieksa between 1940 and 2025 was 19 September 2007, with 46 mm of rain in 24 hours.
What was the windiest day in Lieksa?
The windiest day measured in Lieksa between 1940 and 2025 was 18 April 1976, with winds reaching 45.2 km/h.
What is the warmest month in Lieksa?
The warmest month in Lieksa is July (16.6 °C on average); the coldest is January (-10.4 °C).
How much does it rain in Lieksa?
Lieksa receives on average 673 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Lieksa?
Lieksa gets on average 6.5 hours of sunshine per day, roughly 2,373 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lieksa?
The heaviest 24-hour snowfall measured in Lieksa between 1940 and 2025 was 21 November 1980, with 15.4 cm.
Are there tropical nights in Lieksa?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Lieksa.
What was the most extreme apparent temperature in Lieksa?
In Lieksa, between 1940 and 2025, the highest apparent temperature reached 33.5 °C on 29 July 2010, and the lowest was -42.5 °C on 9 February 1966.
Compare Lieksa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lieksa