Keminmaa climate — normals and trends
Keminmaa (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.0 °C and it receives 661 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 (15.5 °C on average) and the coldest is February (-9.8 °C). Rainfall peaks in August.
Keminmaa averages 184 frost days, 0 hot days (≥ 30 °C) and 124 rainy days per year.
Keminmaa has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 193 to 175 per year over the period.
The hottest day of the period reached 29.9 °C (on 19 July 1988) and the coldest -38.0 °C (on 28 January 1999).
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
KeminmaaLapland
- coords
- 65.80°, 24.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.0°C
Average daily high
4.3°C
Average daily low
-0.5°C
Annual rainfall
661mm
Sunshine / day
7.3h
Mean relative humidity
81%
Average peak wind
20.8km/h
Seasonal range
25.3°C
Frost days (< 0 °C)
184 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
124 d/yr
Annual snowfall
162.5 cm
Average feels-like high
0.4 °C
Average feels-like low
-4.8 °C
Average peak gust
34.0 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
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.22 · 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
29.9 °C
19 July 1988
Coldest day
-38.0 °C
28 January 1999
Wettest day
49 mm
6 August 1986
Windiest day
57.6 km/h
22 September 1982
Strongest gust
101.9 km/h
2 November 2020
Hottest feels-like
31.5 °C
31 July 2025
Coldest feels-like
-43.3 °C
28 January 1999
Snowiest day
15.5 cm
18 December 1966
Sunniest day
20.8 h
17 June 2020
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 | -5.6 °C | +1.6 °C | 54 mm | +11 mm |
| Feb | -3.3 °C | +4.3 °C | 51 mm | +14 mm |
| Mar | -0.6 °C | +2.9 °C | 31 mm | -4 mm |
| Apr | 2.7 °C | +0.8 °C | 16 mm | -22 mm |
| May | 8.6 °C | +0.7 °C | 35 mm | -7 mm |
| Jun | 14.1 °C | +0.5 °C | 102 mm | +48 mm |
| Jul | 22.0 °C | +4.1 °C | 59 mm | -7 mm |
| Aug | 17.5 °C | +1.1 °C | 125 mm | +46 mm |
| Sep | 14.4 °C | +3.0 °C | 111 mm | +35 mm |
| Oct | 7.8 °C | +3.1 °C | 101 mm | +33 mm |
| Nov | 0.2 °C | +0.2 °C | 75 mm | +9 mm |
| Dec | -1.3 °C | +2.7 °C | 69 mm | +12 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 Keminmaa?
Keminmaa has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.0 °C and it receives 661 mm of precipitation per year.
What is the hottest day ever recorded in Keminmaa?
The hottest day measured in Keminmaa between 1940 and 2025 was 19 July 1988, reaching 29.9 °C.
What is the coldest day in Keminmaa?
The coldest day measured in Keminmaa between 1940 and 2025 was 28 January 1999, at -38.0 °C.
Does it snow in Keminmaa?
Yes. Keminmaa gets on average 162.5 cm of snow per year and has around 184 frost days.
Has the climate of Keminmaa warmed?
Yes: Keminmaa warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Keminmaa?
The wettest day measured in Keminmaa between 1940 and 2025 was 6 August 1986, with 49 mm of rain in 24 hours.
What was the windiest day in Keminmaa?
The windiest day measured in Keminmaa between 1940 and 2025 was 22 September 1982, with winds reaching 57.6 km/h.
What is the warmest month in Keminmaa?
The warmest month in Keminmaa is July (15.5 °C on average); the coldest is February (-9.8 °C).
How much does it rain in Keminmaa?
Keminmaa receives on average 661 mm of precipitation per year, spread over about 124 rainy days.
Is it sunny in Keminmaa?
Keminmaa gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Keminmaa?
The heaviest 24-hour snowfall measured in Keminmaa between 1940 and 2025 was 18 December 1966, with 15.5 cm.
Are there tropical nights in Keminmaa?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Keminmaa.
What was the most extreme apparent temperature in Keminmaa?
In Keminmaa, between 1940 and 2025, the highest apparent temperature reached 31.5 °C on 31 July 2025, and the lowest was -43.3 °C on 28 January 1999.
Compare Keminmaa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Keminmaa