Sollefteå climate — normals and trends
Sollefteå (Sweden) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.9 °C and it receives 606 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 (15.4 °C on average) and the coldest is January (-8.9 °C). Rainfall peaks in July.
Sollefteå averages 185 frost days, 0 hot days (≥ 30 °C) and 121 rainy days per year.
Sollefteå 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 190 to 180 per year over the period.
The hottest day of the period reached 33.2 °C (on 27 July 1994) and the coldest -39.8 °C (on 7 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
SollefteåVästernorrland County
- coords
- 63.17°, 17.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.9°C
Average daily high
6.6°C
Average daily low
-1.1°C
Annual rainfall
606mm
Sunshine / day
7.3h
Mean relative humidity
79%
Average peak wind
15.1km/h
Seasonal range
24.3°C
Frost days (< 0 °C)
185 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
150.1 cm
Average feels-like high
3.2 °C
Average feels-like low
-4.7 °C
Average peak gust
35.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.23 · 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
33.2 °C
27 July 1994
Coldest day
-39.8 °C
7 January 1987
Wettest day
57 mm
25 July 1945
Windiest day
44.6 km/h
26 December 2011
Strongest gust
108.7 km/h
26 December 2011
Hottest feels-like
32.1 °C
27 July 1994
Coldest feels-like
-45.0 °C
7 January 1987
Snowiest day
33.8 cm
12 January 2021
Sunniest day
19.4 h
16 June 2023
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 | -2.7 °C | +3.3 °C | 57 mm | +18 mm |
| Feb | -0.8 °C | +3.8 °C | 19 mm | -10 mm |
| Mar | 5.8 °C | +5.1 °C | 17 mm | -14 mm |
| Apr | 9.9 °C | +3.6 °C | 22 mm | -15 mm |
| May | 11.5 °C | -1.3 °C | 76 mm | +32 mm |
| Jun | 16.6 °C | -0.9 °C | 78 mm | +19 mm |
| Jul | 24.4 °C | +4.7 °C | 75 mm | -7 mm |
| Aug | 17.7 °C | -0.1 °C | 68 mm | -9 mm |
| Sep | 15.3 °C | +2.6 °C | 99 mm | +40 mm |
| Oct | 8.3 °C | +2.2 °C | 88 mm | +36 mm |
| Nov | 0.4 °C | +0.8 °C | 32 mm | -18 mm |
| Dec | 0.9 °C | +4.6 °C | 65 mm | +18 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 Sollefteå?
Sollefteå has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.9 °C and it receives 606 mm of precipitation per year.
What is the hottest day ever recorded in Sollefteå?
The hottest day measured in Sollefteå between 1940 and 2025 was 27 July 1994, reaching 33.2 °C.
What is the coldest day in Sollefteå?
The coldest day measured in Sollefteå between 1940 and 2025 was 7 January 1987, at -39.8 °C.
Does it snow in Sollefteå?
Yes. Sollefteå gets on average 150.1 cm of snow per year and has around 185 frost days.
Has the climate of Sollefteå warmed?
Yes: Sollefteå warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sollefteå?
The wettest day measured in Sollefteå between 1940 and 2025 was 25 July 1945, with 57 mm of rain in 24 hours.
What was the windiest day in Sollefteå?
The windiest day measured in Sollefteå between 1940 and 2025 was 26 December 2011, with winds reaching 44.6 km/h.
What is the warmest month in Sollefteå?
The warmest month in Sollefteå is July (15.4 °C on average); the coldest is January (-8.9 °C).
How much does it rain in Sollefteå?
Sollefteå receives on average 606 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Sollefteå?
Sollefteå 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 Sollefteå?
The heaviest 24-hour snowfall measured in Sollefteå between 1940 and 2025 was 12 January 2021, with 33.8 cm.
Are there tropical nights in Sollefteå?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sollefteå.
What was the most extreme apparent temperature in Sollefteå?
In Sollefteå, between 1940 and 2025, the highest apparent temperature reached 32.1 °C on 27 July 1994, and the lowest was -45.0 °C on 7 January 1987.
Compare Sollefteå with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sollefteå