Røros climate — normals and trends
Røros (Norway) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 0.4 °C and it receives 720 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 (11.4 °C on average) and the coldest is January (-9.9 °C). Rainfall peaks in July.
Røros averages 217 frost days, 0 hot days (≥ 30 °C) and 159 rainy days per year.
Røros has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 234 to 200 per year over the period.
The hottest day of the period reached 27.9 °C (on 25 June 2020) and the coldest -38.4 °C (on 1 January 1979).
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
RørosTrøndelag
- coords
- 62.57°, 11.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.4°C
Average daily high
3.5°C
Average daily low
-2.9°C
Annual rainfall
720mm
Sunshine / day
6.8h
Mean relative humidity
81%
Average peak wind
15.1km/h
Seasonal range
21.3°C
Frost days (< 0 °C)
217 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
159 d/yr
Annual snowfall
223.6 cm
Average feels-like high
-0.1 °C
Average feels-like low
-6.8 °C
Average peak gust
38.7 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
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.51 · 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
27.9 °C
25 June 2020
Coldest day
-38.4 °C
1 January 1979
Wettest day
60 mm
12 September 1956
Windiest day
50.7 km/h
2 March 1943
Strongest gust
131.8 km/h
26 December 2011
Hottest feels-like
27.5 °C
7 August 1975
Coldest feels-like
-43.4 °C
1 January 1979
Snowiest day
31.1 cm
12 September 1956
Sunniest day
19.0 h
26 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 | -3.7 °C | +3.7 °C | 43 mm | +3 mm |
| Feb | -2.7 °C | +3.6 °C | 21 mm | -13 mm |
| Mar | 2.0 °C | +4.0 °C | 86 mm | +46 mm |
| Apr | 6.4 °C | +3.7 °C | 51 mm | +6 mm |
| May | 8.1 °C | -0.3 °C | 114 mm | +56 mm |
| Jun | 13.2 °C | 0.0 °C | 109 mm | +18 mm |
| Jul | 20.4 °C | +5.1 °C | 104 mm | +4 mm |
| Aug | 13.8 °C | -0.1 °C | 76 mm | -16 mm |
| Sep | 11.9 °C | +2.6 °C | 75 mm | +2 mm |
| Oct | 5.2 °C | +1.8 °C | 85 mm | +27 mm |
| Nov | -0.2 °C | +2.2 °C | 51 mm | +4 mm |
| Dec | -0.2 °C | +5.5 °C | 59 mm | +15 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 Røros?
Røros has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 0.4 °C and it receives 720 mm of precipitation per year.
What is the hottest day ever recorded in Røros?
The hottest day measured in Røros between 1940 and 2025 was 25 June 2020, reaching 27.9 °C.
What is the coldest day in Røros?
The coldest day measured in Røros between 1940 and 2025 was 1 January 1979, at -38.4 °C.
Does it snow in Røros?
Yes. Røros gets on average 223.6 cm of snow per year and has around 217 frost days.
Has the climate of Røros warmed?
Yes: Røros warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Røros?
The wettest day measured in Røros between 1940 and 2025 was 12 September 1956, with 60 mm of rain in 24 hours.
What was the windiest day in Røros?
The windiest day measured in Røros between 1940 and 2025 was 2 March 1943, with winds reaching 50.7 km/h.
What is the warmest month in Røros?
The warmest month in Røros is July (11.4 °C on average); the coldest is January (-9.9 °C).
How much does it rain in Røros?
Røros receives on average 720 mm of precipitation per year, spread over about 159 rainy days.
Is it sunny in Røros?
Røros gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Røros?
The heaviest 24-hour snowfall measured in Røros between 1940 and 2025 was 12 September 1956, with 31.1 cm.
Are there tropical nights in Røros?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Røros.
What was the most extreme apparent temperature in Røros?
In Røros, between 1940 and 2025, the highest apparent temperature reached 27.5 °C on 7 August 1975, and the lowest was -43.4 °C on 1 January 1979.
Compare Røros with another city
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Nearby cities
The climate around Røros