Nybro climate — normals and trends
Nybro (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.2 °C and it receives 579 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 (17.0 °C on average) and the coldest is February (-1.5 °C). Rainfall peaks in July.
Nybro averages 105 frost days, 1 hot days (≥ 30 °C) and 122 rainy days per year.
Nybro has warmed by +1.8 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 120 to 91 per year over the period.
The hottest day of the period reached 33.2 °C (on 21 July 2022) and the coldest -28.6 °C (on 28 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
NybroKalmar
- coords
- 56.74°, 15.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.2°C
Average daily high
10.6°C
Average daily low
3.9°C
Annual rainfall
579mm
Sunshine / day
7.7h
Mean relative humidity
80%
Average peak wind
17.3km/h
Seasonal range
18.5°C
Frost days (< 0 °C)
105 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
122 d/yr
Annual snowfall
79.1 cm
Average feels-like high
7.7 °C
Average feels-like low
0.6 °C
Average peak gust
39.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.29 · 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
33.2 °C
21 July 2022
Coldest day
-28.6 °C
28 January 1942
Wettest day
54 mm
3 July 2003
Windiest day
51.4 km/h
8 January 2005
Strongest gust
113.0 km/h
8 January 2005
Hottest feels-like
34.2 °C
21 July 2022
Coldest feels-like
-33.7 °C
27 January 1942
Snowiest day
18.9 cm
5 December 1959
Sunniest day
16.7 h
13 June 2023
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 | 3.6 °C | +3.0 °C | 69 mm | +27 mm |
| Feb | 2.7 °C | +1.6 °C | 12 mm | -23 mm |
| Mar | 8.8 °C | +4.3 °C | 11 mm | -22 mm |
| Apr | 13.5 °C | +3.7 °C | 12 mm | -25 mm |
| May | 14.8 °C | -0.4 °C | 58 mm | +10 mm |
| Jun | 20.3 °C | +0.9 °C | 44 mm | -12 mm |
| Jul | 23.1 °C | +1.9 °C | 108 mm | +32 mm |
| Aug | 21.4 °C | +0.9 °C | 47 mm | -17 mm |
| Sep | 18.6 °C | +2.3 °C | 45 mm | -6 mm |
| Oct | 11.8 °C | +0.8 °C | 63 mm | +18 mm |
| Nov | 6.3 °C | +0.8 °C | 33 mm | -14 mm |
| Dec | 5.5 °C | +3.3 °C | 19 mm | -27 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 Nybro?
Nybro has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.2 °C and it receives 579 mm of precipitation per year.
What is the hottest day ever recorded in Nybro?
The hottest day measured in Nybro between 1940 and 2025 was 21 July 2022, reaching 33.2 °C.
What is the coldest day in Nybro?
The coldest day measured in Nybro between 1940 and 2025 was 28 January 1942, at -28.6 °C.
Does it snow in Nybro?
Yes. Nybro gets on average 79.1 cm of snow per year and has around 105 frost days.
Has the climate of Nybro warmed?
Yes: Nybro warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nybro?
The wettest day measured in Nybro between 1940 and 2025 was 3 July 2003, with 54 mm of rain in 24 hours.
What was the windiest day in Nybro?
The windiest day measured in Nybro between 1940 and 2025 was 8 January 2005, with winds reaching 51.4 km/h.
What is the warmest month in Nybro?
The warmest month in Nybro is July (17.0 °C on average); the coldest is February (-1.5 °C).
How much does it rain in Nybro?
Nybro receives on average 579 mm of precipitation per year, spread over about 122 rainy days.
Is it sunny in Nybro?
Nybro gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nybro?
The heaviest 24-hour snowfall measured in Nybro between 1940 and 2025 was 5 December 1959, with 18.9 cm.
Are there tropical nights in Nybro?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Nybro.
What was the most extreme apparent temperature in Nybro?
In Nybro, between 1940 and 2025, the highest apparent temperature reached 34.2 °C on 21 July 2022, and the lowest was -33.7 °C on 27 January 1942.
Compare Nybro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nybro