Katrineholm climate — normals and trends
Katrineholm (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.5 °C and it receives 605 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 (17.2 °C on average) and the coldest is January (-3.1 °C). Rainfall peaks in July.
Katrineholm averages 120 frost days, 0 hot days (≥ 30 °C) and 121 rainy days per year.
Katrineholm 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 134 to 106 per year over the period.
The hottest day of the period reached 33.3 °C (on 7 August 1975) and the coldest -29.1 °C (on 18 January 1940).
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
KatrineholmSödermanland County
- coords
- 59.00°, 16.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.5°C
Average daily high
9.6°C
Average daily low
3.3°C
Annual rainfall
605mm
Sunshine / day
7.5h
Mean relative humidity
80%
Average peak wind
16.3km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
120 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
84.6 cm
Average feels-like high
6.7 °C
Average feels-like low
0.1 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.24 · 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
33.3 °C
7 August 1975
Coldest day
-29.1 °C
18 January 1940
Wettest day
55 mm
1 September 1978
Windiest day
44.3 km/h
9 January 2005
Strongest gust
103.3 km/h
15 January 1989
Hottest feels-like
33.1 °C
10 July 1983
Coldest feels-like
-34.1 °C
18 January 1940
Snowiest day
15.2 cm
6 November 1971
Sunniest day
18.0 h
22 June 1940
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 | 1.8 °C | +2.8 °C | 67 mm | +27 mm |
| Feb | 1.9 °C | +2.4 °C | 15 mm | -17 mm |
| Mar | 7.6 °C | +4.2 °C | 8 mm | -23 mm |
| Apr | 12.2 °C | +3.4 °C | 29 mm | -10 mm |
| May | 14.2 °C | -0.6 °C | 55 mm | +7 mm |
| Jun | 19.2 °C | +0.1 °C | 79 mm | +17 mm |
| Jul | 23.3 °C | +2.3 °C | 130 mm | +54 mm |
| Aug | 19.5 °C | -0.4 °C | 53 mm | -20 mm |
| Sep | 17.9 °C | +2.6 °C | 56 mm | -1 mm |
| Oct | 10.8 °C | +1.0 °C | 65 mm | +14 mm |
| Nov | 5.2 °C | +1.1 °C | 37 mm | -14 mm |
| Dec | 4.6 °C | +3.7 °C | 41 mm | -4 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 Katrineholm?
Katrineholm has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.5 °C and it receives 605 mm of precipitation per year.
What is the hottest day ever recorded in Katrineholm?
The hottest day measured in Katrineholm between 1940 and 2025 was 7 August 1975, reaching 33.3 °C.
What is the coldest day in Katrineholm?
The coldest day measured in Katrineholm between 1940 and 2025 was 18 January 1940, at -29.1 °C.
Does it snow in Katrineholm?
Yes. Katrineholm gets on average 84.6 cm of snow per year and has around 120 frost days.
Has the climate of Katrineholm warmed?
Yes: Katrineholm warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Katrineholm?
The wettest day measured in Katrineholm between 1940 and 2025 was 1 September 1978, with 55 mm of rain in 24 hours.
What was the windiest day in Katrineholm?
The windiest day measured in Katrineholm between 1940 and 2025 was 9 January 2005, with winds reaching 44.3 km/h.
What is the warmest month in Katrineholm?
The warmest month in Katrineholm is July (17.2 °C on average); the coldest is January (-3.1 °C).
How much does it rain in Katrineholm?
Katrineholm receives on average 605 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Katrineholm?
Katrineholm gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Katrineholm?
The heaviest 24-hour snowfall measured in Katrineholm between 1940 and 2025 was 6 November 1971, with 15.2 cm.
Are there tropical nights in Katrineholm?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Katrineholm.
What was the most extreme apparent temperature in Katrineholm?
In Katrineholm, between 1940 and 2025, the highest apparent temperature reached 33.1 °C on 10 July 1983, and the lowest was -34.1 °C on 18 January 1940.
Compare Katrineholm with another city
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Nearby cities
The climate around Katrineholm