Älajärvi climate — normals and trends
Älajärvi (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 3.4 °C and it receives 614 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 (16.3 °C on average) and the coldest is January (-8.4 °C). Rainfall peaks in August.
Älajärvi averages 174 frost days, 1 hot days (≥ 30 °C) and 129 rainy days per year.
Älajärvi has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 185 to 163 per year over the period.
The hottest day of the period reached 33.5 °C (on 29 July 2010) and the coldest -37.0 °C (on 9 January 1958).
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
ÄlajärviSouth Ostrobothnia
- coords
- 63.00°, 23.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.4°C
Average daily high
6.8°C
Average daily low
-0.2°C
Annual rainfall
614mm
Sunshine / day
7.0h
Mean relative humidity
80%
Average peak wind
15.8km/h
Seasonal range
24.7°C
Frost days (< 0 °C)
174 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
123.9 cm
Average feels-like high
3.5 °C
Average feels-like low
-3.8 °C
Average peak gust
35.0 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
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.27 · 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
33.5 °C
29 July 2010
Coldest day
-37.0 °C
9 January 1958
Wettest day
50 mm
6 August 1967
Windiest day
39.2 km/h
3 March 1953
Strongest gust
103.0 km/h
26 October 1985
Hottest feels-like
33.8 °C
29 July 2010
Coldest feels-like
-42.3 °C
9 January 1987
Snowiest day
14.6 cm
13 November 1996
Sunniest day
19.0 h
16 June 1940
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 | -2.5 °C | +3.3 °C | 43 mm | +9 mm |
| Feb | -1.4 °C | +3.8 °C | 12 mm | -14 mm |
| Mar | 4.3 °C | +4.4 °C | 28 mm | -1 mm |
| Apr | 9.2 °C | +2.8 °C | 26 mm | -12 mm |
| May | 12.4 °C | -1.2 °C | 47 mm | -1 mm |
| Jun | 17.1 °C | -1.3 °C | 89 mm | +21 mm |
| Jul | 24.7 °C | +4.2 °C | 81 mm | -1 mm |
| Aug | 18.6 °C | +0.1 °C | 77 mm | -5 mm |
| Sep | 16.4 °C | +3.6 °C | 58 mm | -3 mm |
| Oct | 7.9 °C | +1.9 °C | 54 mm | -0 mm |
| Nov | 2.9 °C | +2.7 °C | 59 mm | +11 mm |
| Dec | 1.3 °C | +4.7 °C | 75 mm | +32 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 Älajärvi?
Älajärvi has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 3.4 °C and it receives 614 mm of precipitation per year.
What is the hottest day ever recorded in Älajärvi?
The hottest day measured in Älajärvi between 1940 and 2025 was 29 July 2010, reaching 33.5 °C.
What is the coldest day in Älajärvi?
The coldest day measured in Älajärvi between 1940 and 2025 was 9 January 1958, at -37.0 °C.
Does it snow in Älajärvi?
Yes. Älajärvi gets on average 123.9 cm of snow per year and has around 174 frost days.
Has the climate of Älajärvi warmed?
Yes: Älajärvi warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Älajärvi?
The wettest day measured in Älajärvi between 1940 and 2025 was 6 August 1967, with 50 mm of rain in 24 hours.
What was the windiest day in Älajärvi?
The windiest day measured in Älajärvi between 1940 and 2025 was 3 March 1953, with winds reaching 39.2 km/h.
What is the warmest month in Älajärvi?
The warmest month in Älajärvi is July (16.3 °C on average); the coldest is January (-8.4 °C).
How much does it rain in Älajärvi?
Älajärvi receives on average 614 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Älajärvi?
Älajärvi gets on average 7.0 hours of sunshine per day, roughly 2,555 hours per year over 1940-2025.
What is the biggest single-day snowfall in Älajärvi?
The heaviest 24-hour snowfall measured in Älajärvi between 1940 and 2025 was 13 November 1996, with 14.6 cm.
Are there tropical nights in Älajärvi?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Älajärvi.
What was the most extreme apparent temperature in Älajärvi?
In Älajärvi, between 1940 and 2025, the highest apparent temperature reached 33.8 °C on 29 July 2010, and the lowest was -42.3 °C on 9 January 1987.
Compare Älajärvi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Älajärvi