Indre Arna climate — normals and trends
Indre Arna (Norway) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.4 °C and it receives 2,494 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 (13.7 °C on average) and the coldest is January (-2.3 °C). Rainfall peaks in October.
Indre Arna averages 120 frost days, 0 hot days (≥ 30 °C) and 206 rainy days per year.
Indre Arna has warmed by +4.3 °C between 1940 and 2025, or +0.50 °C per decade. This trend is statistically significant.
The number of frost days there went from about 169 to 71 per year over the period.
The hottest day of the period reached 30.6 °C (on 26 July 2019) and the coldest -28.1 °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
Indre ArnaVestland
- coords
- 60.42°, 5.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.4°C
Average daily high
8.3°C
Average daily low
2.3°C
Annual rainfall
2,494mm
Sunshine / day
7.0h
Mean relative humidity
82%
Average peak wind
13.6km/h
Seasonal range
16.0°C
Frost days (< 0 °C)
120 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
206 d/yr
Annual snowfall
345.2 cm
Average feels-like high
5.6 °C
Average feels-like low
-0.7 °C
Average peak gust
39.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+4.3 °C
since 1940
+0.5 °C per decade · r² = 0.72 · 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
30.6 °C
26 July 2019
Coldest day
-28.1 °C
1 January 1979
Wettest day
112 mm
10 October 1953
Windiest day
45.8 km/h
23 January 1994
Strongest gust
156.2 km/h
23 January 1994
Hottest feels-like
31.9 °C
17 July 2003
Coldest feels-like
-33.0 °C
1 January 1979
Snowiest day
32.6 cm
31 January 1962
Sunniest day
18.3 h
20 June 2010
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 | 2.0 °C | +2.2 °C | 181 mm | -53 mm |
| Feb | 4.4 °C | +3.7 °C | 154 mm | -43 mm |
| Mar | 7.3 °C | +3.7 °C | 363 mm | +170 mm |
| Apr | 11.5 °C | +4.3 °C | 103 mm | -41 mm |
| May | 13.8 °C | +1.6 °C | 144 mm | +20 mm |
| Jun | 14.7 °C | -0.6 °C | 290 mm | +134 mm |
| Jul | 21.2 °C | +4.2 °C | 115 mm | -55 mm |
| Aug | 16.7 °C | +0.2 °C | 242 mm | +39 mm |
| Sep | 14.9 °C | +1.7 °C | 238 mm | -38 mm |
| Oct | 10.4 °C | +1.6 °C | 229 mm | -49 mm |
| Nov | 6.3 °C | +2.5 °C | 289 mm | +46 mm |
| Dec | 5.8 °C | +4.7 °C | 340 mm | +63 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 Indre Arna?
Indre Arna has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.4 °C and it receives 2,494 mm of precipitation per year.
What is the hottest day ever recorded in Indre Arna?
The hottest day measured in Indre Arna between 1940 and 2025 was 26 July 2019, reaching 30.6 °C.
What is the coldest day in Indre Arna?
The coldest day measured in Indre Arna between 1940 and 2025 was 1 January 1979, at -28.1 °C.
Does it snow in Indre Arna?
Yes. Indre Arna gets on average 345.2 cm of snow per year and has around 120 frost days.
Has the climate of Indre Arna warmed?
Yes: Indre Arna warmed by +4.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Indre Arna?
The wettest day measured in Indre Arna between 1940 and 2025 was 10 October 1953, with 112 mm of rain in 24 hours.
What was the windiest day in Indre Arna?
The windiest day measured in Indre Arna between 1940 and 2025 was 23 January 1994, with winds reaching 45.8 km/h.
What is the warmest month in Indre Arna?
The warmest month in Indre Arna is July (13.7 °C on average); the coldest is January (-2.3 °C).
How much does it rain in Indre Arna?
Indre Arna receives on average 2,494 mm of precipitation per year, spread over about 206 rainy days.
Is it sunny in Indre Arna?
Indre Arna 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 Indre Arna?
The heaviest 24-hour snowfall measured in Indre Arna between 1940 and 2025 was 31 January 1962, with 32.6 cm.
Are there tropical nights in Indre Arna?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Indre Arna.
What was the most extreme apparent temperature in Indre Arna?
In Indre Arna, between 1940 and 2025, the highest apparent temperature reached 31.9 °C on 17 July 2003, and the lowest was -33.0 °C on 1 January 1979.
Compare Indre Arna with another city
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Nearby cities
The climate around Indre Arna