Hamar climate — normals and trends
Hamar (Norway) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 3.8 °C and it receives 783 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 (15.2 °C on average) and the coldest is January (-8.4 °C). Rainfall peaks in August.
Hamar averages 165 frost days, 0 hot days (≥ 30 °C) and 129 rainy days per year.
Hamar has warmed by +3.1 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The number of frost days there went from about 185 to 145 per year over the period.
The hottest day of the period reached 32.1 °C (on 7 August 1975) and the coldest -35.8 °C (on 11 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
HamarInnlandet
- coords
- 60.79°, 11.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.8°C
Average daily high
7.2°C
Average daily low
0.3°C
Annual rainfall
783mm
Sunshine / day
7.3h
Mean relative humidity
79%
Average peak wind
11.5km/h
Seasonal range
23.6°C
Frost days (< 0 °C)
165 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
177.2 cm
Average feels-like high
4.4 °C
Average feels-like low
-2.8 °C
Average peak gust
28.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.48 · 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
32.1 °C
7 August 1975
Coldest day
-35.8 °C
11 January 1987
Wettest day
55 mm
3 September 1988
Windiest day
35.3 km/h
11 April 1997
Strongest gust
97.6 km/h
16 October 1987
Hottest feels-like
31.8 °C
7 July 1991
Coldest feels-like
-41.5 °C
11 January 1987
Snowiest day
22.8 cm
31 March 1962
Sunniest day
18.3 h
30 June 2018
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 | -3.0 °C | +2.9 °C | 88 mm | +39 mm |
| Feb | -1.3 °C | +2.6 °C | 25 mm | -11 mm |
| Mar | 7.0 °C | +5.1 °C | 10 mm | -30 mm |
| Apr | 12.6 °C | +5.5 °C | 21 mm | -25 mm |
| May | 15.0 °C | +1.5 °C | 48 mm | -17 mm |
| Jun | 17.6 °C | -0.1 °C | 96 mm | +16 mm |
| Jul | 23.1 °C | +3.7 °C | 156 mm | +62 mm |
| Aug | 18.6 °C | +0.6 °C | 63 mm | -31 mm |
| Sep | 15.0 °C | +1.5 °C | 112 mm | +35 mm |
| Oct | 8.7 °C | +1.3 °C | 125 mm | +51 mm |
| Nov | 4.0 °C | +2.6 °C | 64 mm | -7 mm |
| Dec | 2.6 °C | +5.8 °C | 78 mm | +23 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 Hamar?
Hamar has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 3.8 °C and it receives 783 mm of precipitation per year.
What is the hottest day ever recorded in Hamar?
The hottest day measured in Hamar between 1940 and 2025 was 7 August 1975, reaching 32.1 °C.
What is the coldest day in Hamar?
The coldest day measured in Hamar between 1940 and 2025 was 11 January 1987, at -35.8 °C.
Does it snow in Hamar?
Yes. Hamar gets on average 177.2 cm of snow per year and has around 165 frost days.
Has the climate of Hamar warmed?
Yes: Hamar warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hamar?
The wettest day measured in Hamar between 1940 and 2025 was 3 September 1988, with 55 mm of rain in 24 hours.
What was the windiest day in Hamar?
The windiest day measured in Hamar between 1940 and 2025 was 11 April 1997, with winds reaching 35.3 km/h.
What is the warmest month in Hamar?
The warmest month in Hamar is July (15.2 °C on average); the coldest is January (-8.4 °C).
How much does it rain in Hamar?
Hamar receives on average 783 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Hamar?
Hamar 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 Hamar?
The heaviest 24-hour snowfall measured in Hamar between 1940 and 2025 was 31 March 1962, with 22.8 cm.
Are there tropical nights in Hamar?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Hamar.
What was the most extreme apparent temperature in Hamar?
In Hamar, between 1940 and 2025, the highest apparent temperature reached 31.8 °C on 7 July 1991, and the lowest was -41.5 °C on 11 January 1987.
Compare Hamar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hamar