Vimmerby climate — normals and trends
Vimmerby (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.4 °C and it receives 624 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 (16.6 °C on average) and the coldest is February (-2.8 °C). Rainfall peaks in July.
Vimmerby averages 125 frost days, 1 hot days (≥ 30 °C) and 125 rainy days per year.
Vimmerby 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 137 to 113 per year over the period.
The hottest day of the period reached 36.0 °C (on 21 July 2022) and the coldest -29.0 °C (on 27 January 1942).
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
VimmerbyKalmar
- coords
- 57.67°, 15.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.4°C
Average daily high
9.9°C
Average daily low
2.9°C
Annual rainfall
624mm
Sunshine / day
7.4h
Mean relative humidity
80%
Average peak wind
16.6km/h
Seasonal range
19.4°C
Frost days (< 0 °C)
125 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
98.3 cm
Average feels-like high
6.9 °C
Average feels-like low
-0.4 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.25 · 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
36.0 °C
21 July 2022
Coldest day
-29.0 °C
27 January 1942
Wettest day
73 mm
8 July 2012
Windiest day
48.5 km/h
22 September 1969
Strongest gust
111.6 km/h
22 September 1969
Hottest feels-like
34.9 °C
21 July 2022
Coldest feels-like
-34.3 °C
27 January 1942
Snowiest day
23.1 cm
4 April 1998
Sunniest day
17.6 h
22 June 2019
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 | 2.3 °C | +2.9 °C | 78 mm | +38 mm |
| Feb | 1.9 °C | +2.0 °C | 11 mm | -22 mm |
| Mar | 8.2 °C | +4.4 °C | 14 mm | -19 mm |
| Apr | 13.5 °C | +4.1 °C | 15 mm | -26 mm |
| May | 14.7 °C | -0.5 °C | 56 mm | +2 mm |
| Jun | 20.1 °C | +0.8 °C | 48 mm | -18 mm |
| Jul | 23.3 °C | +2.4 °C | 116 mm | +33 mm |
| Aug | 20.8 °C | +0.9 °C | 38 mm | -35 mm |
| Sep | 18.4 °C | +2.9 °C | 48 mm | -9 mm |
| Oct | 11.0 °C | +1.0 °C | 53 mm | +4 mm |
| Nov | 5.1 °C | +0.8 °C | 38 mm | -9 mm |
| Dec | 4.7 °C | +3.6 °C | 27 mm | -18 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 Vimmerby?
Vimmerby has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.4 °C and it receives 624 mm of precipitation per year.
What is the hottest day ever recorded in Vimmerby?
The hottest day measured in Vimmerby between 1940 and 2025 was 21 July 2022, reaching 36.0 °C.
What is the coldest day in Vimmerby?
The coldest day measured in Vimmerby between 1940 and 2025 was 27 January 1942, at -29.0 °C.
Does it snow in Vimmerby?
Yes. Vimmerby gets on average 98.3 cm of snow per year and has around 125 frost days.
Has the climate of Vimmerby warmed?
Yes: Vimmerby warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Vimmerby?
The wettest day measured in Vimmerby between 1940 and 2025 was 8 July 2012, with 73 mm of rain in 24 hours.
What was the windiest day in Vimmerby?
The windiest day measured in Vimmerby between 1940 and 2025 was 22 September 1969, with winds reaching 48.5 km/h.
What is the warmest month in Vimmerby?
The warmest month in Vimmerby is July (16.6 °C on average); the coldest is February (-2.8 °C).
How much does it rain in Vimmerby?
Vimmerby receives on average 624 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Vimmerby?
Vimmerby gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Vimmerby?
The heaviest 24-hour snowfall measured in Vimmerby between 1940 and 2025 was 4 April 1998, with 23.1 cm.
Are there tropical nights in Vimmerby?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Vimmerby.
What was the most extreme apparent temperature in Vimmerby?
In Vimmerby, between 1940 and 2025, the highest apparent temperature reached 34.9 °C on 21 July 2022, and the lowest was -34.3 °C on 27 January 1942.
Compare Vimmerby with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Vimmerby