Tyrnävä climate — normals and trends
Tyrnävä (Finland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.4 °C and it receives 608 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 (16.2 °C on average) and the coldest is January (-10.1 °C). Rainfall peaks in August.
Tyrnävä averages 188 frost days, 0 hot days (≥ 30 °C) and 125 rainy days per year.
Tyrnävä has warmed by +2.0 °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 199 to 177 per year over the period.
The hottest day of the period reached 32.7 °C (on 29 July 2010) and the coldest -42.8 °C (on 30 January 1956).
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
TyrnäväNorth Ostrobothnia
- coords
- 64.76°, 25.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.4°C
Average daily high
5.9°C
Average daily low
-1.4°C
Annual rainfall
608mm
Sunshine / day
7.0h
Mean relative humidity
81%
Average peak wind
15.4km/h
Seasonal range
26.3°C
Frost days (< 0 °C)
188 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
125.8 cm
Average feels-like high
2.6 °C
Average feels-like low
-5.1 °C
Average peak gust
32.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.24 · 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
32.7 °C
29 July 2010
Coldest day
-42.8 °C
30 January 1956
Wettest day
39 mm
9 July 1966
Windiest day
45.7 km/h
26 December 1992
Strongest gust
97.2 km/h
26 December 1992
Hottest feels-like
34.7 °C
29 July 2010
Coldest feels-like
-48.0 °C
30 January 1956
Snowiest day
17.6 cm
9 April 1949
Sunniest day
20.2 h
24 June 2010
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 | +3.4 °C | 40 mm | +7 mm |
| Feb | -2.2 °C | +4.4 °C | 22 mm | -5 mm |
| Mar | 3.0 °C | +4.5 °C | 39 mm | +11 mm |
| Apr | 7.7 °C | +2.5 °C | 15 mm | -20 mm |
| May | 12.4 °C | -0.3 °C | 60 mm | +9 mm |
| Jun | 16.3 °C | -1.6 °C | 87 mm | +18 mm |
| Jul | 24.1 °C | +3.8 °C | 68 mm | -16 mm |
| Aug | 18.7 °C | +0.7 °C | 61 mm | -24 mm |
| Sep | 16.6 °C | +4.3 °C | 98 mm | +37 mm |
| Oct | 7.7 °C | +2.6 °C | 65 mm | +13 mm |
| Nov | 1.1 °C | +1.9 °C | 54 mm | +9 mm |
| Dec | -0.8 °C | +3.8 °C | 67 mm | +27 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 Tyrnävä?
Tyrnävä has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.4 °C and it receives 608 mm of precipitation per year.
What is the hottest day ever recorded in Tyrnävä?
The hottest day measured in Tyrnävä between 1940 and 2025 was 29 July 2010, reaching 32.7 °C.
What is the coldest day in Tyrnävä?
The coldest day measured in Tyrnävä between 1940 and 2025 was 30 January 1956, at -42.8 °C.
Does it snow in Tyrnävä?
Yes. Tyrnävä gets on average 125.8 cm of snow per year and has around 188 frost days.
Has the climate of Tyrnävä warmed?
Yes: Tyrnävä warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tyrnävä?
The wettest day measured in Tyrnävä between 1940 and 2025 was 9 July 1966, with 39 mm of rain in 24 hours.
What was the windiest day in Tyrnävä?
The windiest day measured in Tyrnävä between 1940 and 2025 was 26 December 1992, with winds reaching 45.7 km/h.
What is the warmest month in Tyrnävä?
The warmest month in Tyrnävä is July (16.2 °C on average); the coldest is January (-10.1 °C).
How much does it rain in Tyrnävä?
Tyrnävä receives on average 608 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Tyrnävä?
Tyrnävä 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 Tyrnävä?
The heaviest 24-hour snowfall measured in Tyrnävä between 1940 and 2025 was 9 April 1949, with 17.6 cm.
Are there tropical nights in Tyrnävä?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tyrnävä.
What was the most extreme apparent temperature in Tyrnävä?
In Tyrnävä, between 1940 and 2025, the highest apparent temperature reached 34.7 °C on 29 July 2010, and the lowest was -48.0 °C on 30 January 1956.
Compare Tyrnävä with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tyrnävä