Haslev climate — normals and trends
Haslev (Denmark) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 588 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 (17.1 °C on average) and the coldest is January (0.4 °C). Rainfall peaks in August.
Haslev averages 72 frost days, 0 hot days (≥ 30 °C) and 126 rainy days per year.
Haslev has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 96 to 48 per year over the period.
The hottest day of the period reached 31.6 °C (on 9 August 1975) and the coldest -24.2 °C (on 26 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
HaslevZealand
- coords
- 55.32°, 11.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
11.1°C
Average daily low
5.5°C
Annual rainfall
588mm
Sunshine / day
8.1h
Mean relative humidity
81%
Average peak wind
24.3km/h
Seasonal range
16.7°C
Frost days (< 0 °C)
72 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
45.4 cm
Average feels-like high
7.8 °C
Average feels-like low
1.8 °C
Average peak gust
43.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.45 · 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
31.6 °C
9 August 1975
Coldest day
-24.2 °C
26 January 1942
Wettest day
57 mm
22 July 2025
Windiest day
77.6 km/h
17 October 1967
Strongest gust
136.4 km/h
3 December 1999
Hottest feels-like
34.3 °C
10 July 2010
Coldest feels-like
-29.1 °C
26 January 1942
Snowiest day
19.3 cm
10 April 1970
Sunniest day
16.5 h
28 June 1940
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 | 4.5 °C | +2.4 °C | 52 mm | +5 mm |
| Feb | 3.7 °C | +1.4 °C | 15 mm | -23 mm |
| Mar | 9.2 °C | +3.9 °C | 14 mm | -25 mm |
| Apr | 13.6 °C | +3.7 °C | 10 mm | -28 mm |
| May | 16.0 °C | +1.3 °C | 37 mm | -9 mm |
| Jun | 19.9 °C | +1.3 °C | 65 mm | +10 mm |
| Jul | 22.0 °C | +1.3 °C | 166 mm | +103 mm |
| Aug | 21.4 °C | +0.9 °C | 34 mm | -30 mm |
| Sep | 19.1 °C | +2.2 °C | 48 mm | -4 mm |
| Oct | 12.9 °C | +1.0 °C | 80 mm | +32 mm |
| Nov | 7.8 °C | +1.0 °C | 34 mm | -14 mm |
| Dec | 6.4 °C | +2.6 °C | 21 mm | -28 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 Haslev?
Haslev has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 588 mm of precipitation per year.
What is the hottest day ever recorded in Haslev?
The hottest day measured in Haslev between 1940 and 2025 was 9 August 1975, reaching 31.6 °C.
What is the coldest day in Haslev?
The coldest day measured in Haslev between 1940 and 2025 was 26 January 1942, at -24.2 °C.
Does it snow in Haslev?
Yes. Haslev gets on average 45.4 cm of snow per year and has around 72 frost days.
Has the climate of Haslev warmed?
Yes: Haslev warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Haslev?
The wettest day measured in Haslev between 1940 and 2025 was 22 July 2025, with 57 mm of rain in 24 hours.
What was the windiest day in Haslev?
The windiest day measured in Haslev between 1940 and 2025 was 17 October 1967, with winds reaching 77.6 km/h.
What is the warmest month in Haslev?
The warmest month in Haslev is July (17.1 °C on average); the coldest is January (0.4 °C).
How much does it rain in Haslev?
Haslev receives on average 588 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Haslev?
Haslev gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Haslev?
The heaviest 24-hour snowfall measured in Haslev between 1940 and 2025 was 10 April 1970, with 19.3 cm.
Are there tropical nights in Haslev?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Haslev.
What was the most extreme apparent temperature in Haslev?
In Haslev, between 1940 and 2025, the highest apparent temperature reached 34.3 °C on 10 July 2010, and the lowest was -29.1 °C on 26 January 1942.
Compare Haslev with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Haslev