Östersund climate — normals and trends
Östersund (Sweden) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.9 °C and it receives 653 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 (14.4 °C on average) and the coldest is January (-7.9 °C). Rainfall peaks in July.
Östersund averages 177 frost days, 0 hot days (≥ 30 °C) and 131 rainy days per year.
Östersund 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 188 to 166 per year over the period.
The hottest day of the period reached 30.0 °C (on 9 July 1991) and the coldest -38.1 °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
ÖstersundJämtland County
- coords
- 63.18°, 14.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.9°C
Average daily high
6.0°C
Average daily low
-0.3°C
Annual rainfall
653mm
Sunshine / day
7.2h
Mean relative humidity
79%
Average peak wind
15.7km/h
Seasonal range
22.3°C
Frost days (< 0 °C)
177 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
151.7 cm
Average feels-like high
2.6 °C
Average feels-like low
-4.0 °C
Average peak gust
34.4 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 = 0.31 · 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
30.0 °C
9 July 1991
Coldest day
-38.1 °C
10 January 1987
Wettest day
61 mm
18 June 2010
Windiest day
49.3 km/h
26 December 2011
Strongest gust
111.6 km/h
26 December 2011
Hottest feels-like
30.3 °C
26 July 2019
Coldest feels-like
-43.5 °C
10 January 1987
Snowiest day
25.8 cm
20 October 2006
Sunniest day
19.6 h
24 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 | -2.4 °C | +3.0 °C | 57 mm | +20 mm |
| Feb | -0.6 °C | +3.6 °C | 20 mm | -9 mm |
| Mar | 4.5 °C | +4.0 °C | 49 mm | +17 mm |
| Apr | 8.6 °C | +3.3 °C | 25 mm | -14 mm |
| May | 10.2 °C | -1.2 °C | 99 mm | +47 mm |
| Jun | 15.4 °C | -0.5 °C | 87 mm | +14 mm |
| Jul | 23.0 °C | +4.9 °C | 113 mm | +20 mm |
| Aug | 16.4 °C | -0.2 °C | 70 mm | -13 mm |
| Sep | 14.5 °C | +2.7 °C | 107 mm | +38 mm |
| Oct | 7.7 °C | +1.9 °C | 120 mm | +62 mm |
| Nov | 1.2 °C | +1.5 °C | 42 mm | -6 mm |
| Dec | 0.8 °C | +4.2 °C | 64 mm | +20 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 Östersund?
Östersund has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.9 °C and it receives 653 mm of precipitation per year.
What is the hottest day ever recorded in Östersund?
The hottest day measured in Östersund between 1940 and 2025 was 9 July 1991, reaching 30.0 °C.
What is the coldest day in Östersund?
The coldest day measured in Östersund between 1940 and 2025 was 10 January 1987, at -38.1 °C.
Does it snow in Östersund?
Yes. Östersund gets on average 151.7 cm of snow per year and has around 177 frost days.
Has the climate of Östersund warmed?
Yes: Östersund warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Östersund?
The wettest day measured in Östersund between 1940 and 2025 was 18 June 2010, with 61 mm of rain in 24 hours.
What was the windiest day in Östersund?
The windiest day measured in Östersund between 1940 and 2025 was 26 December 2011, with winds reaching 49.3 km/h.
What is the warmest month in Östersund?
The warmest month in Östersund is July (14.4 °C on average); the coldest is January (-7.9 °C).
How much does it rain in Östersund?
Östersund receives on average 653 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Östersund?
Östersund gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Östersund?
The heaviest 24-hour snowfall measured in Östersund between 1940 and 2025 was 20 October 2006, with 25.8 cm.
Are there tropical nights in Östersund?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Östersund.
What was the most extreme apparent temperature in Östersund?
In Östersund, between 1940 and 2025, the highest apparent temperature reached 30.3 °C on 26 July 2019, and the lowest was -43.5 °C on 10 January 1987.
Compare Östersund with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Östersund