Ristiina climate — normals and trends
Ristiina (Finland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.0 °C and it receives 643 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 (17.2 °C on average) and the coldest is January (-8.3 °C). Rainfall peaks in August.
Ristiina averages 161 frost days, 1 hot days (≥ 30 °C) and 133 rainy days per year.
Ristiina 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 176 to 146 per year over the period.
The hottest day of the period reached 32.9 °C (on 29 July 2010) and the coldest -37.8 °C (on 8 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
RistiinaSouth Savo
- coords
- 61.51°, 27.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.0°C
Average daily high
7.0°C
Average daily low
0.9°C
Annual rainfall
643mm
Sunshine / day
6.9h
Mean relative humidity
81%
Average peak wind
15.7km/h
Seasonal range
25.5°C
Frost days (< 0 °C)
161 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
137.0 cm
Average feels-like high
3.8 °C
Average feels-like low
-2.6 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.33 · 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
32.9 °C
29 July 2010
Coldest day
-37.8 °C
8 January 1987
Wettest day
57 mm
8 August 1966
Windiest day
41.9 km/h
26 October 1985
Strongest gust
92.5 km/h
27 May 1986
Hottest feels-like
33.6 °C
7 August 2010
Coldest feels-like
-43.4 °C
10 January 1987
Snowiest day
14.4 cm
18 March 1961
Sunniest day
18.3 h
18 June 2023
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -1.0 °C | +4.9 °C | 55 mm | +16 mm |
| Feb | -2.5 °C | +3.0 °C | 12 mm | -20 mm |
| Mar | 3.7 °C | +4.1 °C | 36 mm | +3 mm |
| Apr | 8.6 °C | +2.6 °C | 47 mm | +9 mm |
| May | 12.7 °C | -1.0 °C | 54 mm | +7 mm |
| Jun | 17.8 °C | -1.1 °C | 122 mm | +54 mm |
| Jul | 24.6 °C | +3.6 °C | 77 mm | -8 mm |
| Aug | 19.3 °C | +0.3 °C | 91 mm | +5 mm |
| Sep | 17.1 °C | +3.7 °C | 68 mm | +6 mm |
| Oct | 8.3 °C | +1.6 °C | 53 mm | -4 mm |
| Nov | 4.0 °C | +3.2 °C | 45 mm | -7 mm |
| Dec | 1.5 °C | +4.7 °C | 59 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 Ristiina?
Ristiina has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.0 °C and it receives 643 mm of precipitation per year.
What is the hottest day ever recorded in Ristiina?
The hottest day measured in Ristiina between 1940 and 2025 was 29 July 2010, reaching 32.9 °C.
What is the coldest day in Ristiina?
The coldest day measured in Ristiina between 1940 and 2025 was 8 January 1987, at -37.8 °C.
Does it snow in Ristiina?
Yes. Ristiina gets on average 137.0 cm of snow per year and has around 161 frost days.
Has the climate of Ristiina warmed?
Yes: Ristiina warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ristiina?
The wettest day measured in Ristiina between 1940 and 2025 was 8 August 1966, with 57 mm of rain in 24 hours.
What was the windiest day in Ristiina?
The windiest day measured in Ristiina between 1940 and 2025 was 26 October 1985, with winds reaching 41.9 km/h.
What is the warmest month in Ristiina?
The warmest month in Ristiina is July (17.2 °C on average); the coldest is January (-8.3 °C).
How much does it rain in Ristiina?
Ristiina receives on average 643 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Ristiina?
Ristiina gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ristiina?
The heaviest 24-hour snowfall measured in Ristiina between 1940 and 2025 was 18 March 1961, with 14.4 cm.
Are there tropical nights in Ristiina?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ristiina.
What was the most extreme apparent temperature in Ristiina?
In Ristiina, between 1940 and 2025, the highest apparent temperature reached 33.6 °C on 7 August 2010, and the lowest was -43.4 °C on 10 January 1987.
Compare Ristiina with another city
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Nearby cities
The climate around Ristiina