Kemijärvi climate — normals and trends
Kemijärvi (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 0.5 °C and it receives 580 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 (15.1 °C on average) and the coldest is January (-12.5 °C). Rainfall peaks in July.
Kemijärvi averages 206 frost days, 0 hot days (≥ 30 °C) and 126 rainy days per year.
Kemijärvi has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 213 to 199 per year over the period.
The hottest day of the period reached 30.5 °C (on 20 July 1970) and the coldest -42.9 °C (on 6 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
KemijärviLapland
- coords
- 66.71°, 27.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.5°C
Average daily high
3.6°C
Average daily low
-2.8°C
Annual rainfall
580mm
Sunshine / day
6.3h
Mean relative humidity
80%
Average peak wind
15.3km/h
Seasonal range
27.6°C
Frost days (< 0 °C)
206 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
160.1 cm
Average feels-like high
0.0 °C
Average feels-like low
-6.8 °C
Average peak gust
33.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
7.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.14 · 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
30.5 °C
20 July 1970
Coldest day
-42.9 °C
6 January 1985
Wettest day
55 mm
18 July 1955
Windiest day
42.7 km/h
3 March 1953
Strongest gust
96.5 km/h
10 March 1993
Hottest feels-like
31.8 °C
31 July 2025
Coldest feels-like
-48.1 °C
6 January 1985
Snowiest day
18.4 cm
28 April 1970
Sunniest day
22.3 h
28 June 1941
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 | -7.3 °C | +2.3 °C | 50 mm | +19 mm |
| Feb | -3.8 °C | +5.1 °C | 23 mm | -3 mm |
| Mar | -0.1 °C | +3.2 °C | 35 mm | +6 mm |
| Apr | 3.9 °C | +1.1 °C | 24 mm | -12 mm |
| May | 10.5 °C | +1.2 °C | 58 mm | +13 mm |
| Jun | 14.5 °C | -1.4 °C | 96 mm | +26 mm |
| Jul | 22.6 °C | +3.9 °C | 67 mm | -10 mm |
| Aug | 17.0 °C | +0.9 °C | 119 mm | +44 mm |
| Sep | 14.3 °C | +4.2 °C | 72 mm | +11 mm |
| Oct | 5.8 °C | +3.2 °C | 75 mm | +22 mm |
| Nov | -3.2 °C | +0.1 °C | 66 mm | +24 mm |
| Dec | -4.1 °C | +2.8 °C | 70 mm | +33 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 Kemijärvi?
Kemijärvi has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 0.5 °C and it receives 580 mm of precipitation per year.
What is the hottest day ever recorded in Kemijärvi?
The hottest day measured in Kemijärvi between 1940 and 2025 was 20 July 1970, reaching 30.5 °C.
What is the coldest day in Kemijärvi?
The coldest day measured in Kemijärvi between 1940 and 2025 was 6 January 1985, at -42.9 °C.
Does it snow in Kemijärvi?
Yes. Kemijärvi gets on average 160.1 cm of snow per year and has around 206 frost days.
Has the climate of Kemijärvi warmed?
Yes: Kemijärvi warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kemijärvi?
The wettest day measured in Kemijärvi between 1940 and 2025 was 18 July 1955, with 55 mm of rain in 24 hours.
What was the windiest day in Kemijärvi?
The windiest day measured in Kemijärvi between 1940 and 2025 was 3 March 1953, with winds reaching 42.7 km/h.
What is the warmest month in Kemijärvi?
The warmest month in Kemijärvi is July (15.1 °C on average); the coldest is January (-12.5 °C).
How much does it rain in Kemijärvi?
Kemijärvi receives on average 580 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Kemijärvi?
Kemijärvi gets on average 6.3 hours of sunshine per day, roughly 2,300 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kemijärvi?
The heaviest 24-hour snowfall measured in Kemijärvi between 1940 and 2025 was 28 April 1970, with 18.4 cm.
Are there tropical nights in Kemijärvi?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kemijärvi.
What was the most extreme apparent temperature in Kemijärvi?
In Kemijärvi, between 1940 and 2025, the highest apparent temperature reached 31.8 °C on 31 July 2025, and the lowest was -48.1 °C on 6 January 1985.
Compare Kemijärvi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kemijärvi