Tammela climate — normals and trends
Tammela (Finland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.4 °C and it receives 659 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 February (-6.7 °C). Rainfall peaks in August.
Tammela averages 162 frost days, 0 hot days (≥ 30 °C) and 132 rainy days per year.
Tammela has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 179 to 145 per year over the period.
The hottest day of the period reached 31.4 °C (on 29 July 1994) and the coldest -37.5 °C (on 10 January 1987).
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
TammelaKanta-Häme
- coords
- 60.81°, 23.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.4°C
Average daily high
7.7°C
Average daily low
0.8°C
Annual rainfall
659mm
Sunshine / day
7.0h
Mean relative humidity
82%
Average peak wind
16.7km/h
Seasonal range
23.3°C
Frost days (< 0 °C)
162 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
129.0 cm
Average feels-like high
4.5 °C
Average feels-like low
-2.7 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.37 · 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
31.4 °C
29 July 1994
Coldest day
-37.5 °C
10 January 1987
Wettest day
53 mm
12 August 1972
Windiest day
43.8 km/h
23 January 1995
Strongest gust
97.2 km/h
23 January 1995
Hottest feels-like
33.2 °C
8 August 2010
Coldest feels-like
-43.8 °C
10 January 1987
Snowiest day
16.7 cm
18 December 1966
Sunniest day
18.2 h
17 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 | 0.4 °C | +4.6 °C | 57 mm | +12 mm |
| Feb | -1.0 °C | +3.1 °C | 20 mm | -15 mm |
| Mar | 5.6 °C | +5.3 °C | 17 mm | -18 mm |
| Apr | 9.4 °C | +2.6 °C | 46 mm | +7 mm |
| May | 12.9 °C | -1.2 °C | 41 mm | -6 mm |
| Jun | 17.4 °C | -1.3 °C | 95 mm | +30 mm |
| Jul | 24.0 °C | +3.3 °C | 95 mm | +10 mm |
| Aug | 18.6 °C | -0.5 °C | 82 mm | -5 mm |
| Sep | 16.9 °C | +3.2 °C | 77 mm | +15 mm |
| Oct | 8.8 °C | +1.3 °C | 47 mm | -7 mm |
| Nov | 5.1 °C | +3.4 °C | 41 mm | -14 mm |
| Dec | 3.2 °C | +5.0 °C | 54 mm | +3 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 Tammela?
Tammela has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.4 °C and it receives 659 mm of precipitation per year.
What is the hottest day ever recorded in Tammela?
The hottest day measured in Tammela between 1940 and 2025 was 29 July 1994, reaching 31.4 °C.
What is the coldest day in Tammela?
The coldest day measured in Tammela between 1940 and 2025 was 10 January 1987, at -37.5 °C.
Does it snow in Tammela?
Yes. Tammela gets on average 129.0 cm of snow per year and has around 162 frost days.
Has the climate of Tammela warmed?
Yes: Tammela warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tammela?
The wettest day measured in Tammela between 1940 and 2025 was 12 August 1972, with 53 mm of rain in 24 hours.
What was the windiest day in Tammela?
The windiest day measured in Tammela between 1940 and 2025 was 23 January 1995, with winds reaching 43.8 km/h.
What is the warmest month in Tammela?
The warmest month in Tammela is July (16.6 °C on average); the coldest is February (-6.7 °C).
How much does it rain in Tammela?
Tammela receives on average 659 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Tammela?
Tammela 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 Tammela?
The heaviest 24-hour snowfall measured in Tammela between 1940 and 2025 was 18 December 1966, with 16.7 cm.
Are there tropical nights in Tammela?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tammela.
What was the most extreme apparent temperature in Tammela?
In Tammela, between 1940 and 2025, the highest apparent temperature reached 33.2 °C on 8 August 2010, and the lowest was -43.8 °C on 10 January 1987.
Compare Tammela with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tammela