Hillerød climate — normals and trends
Hillerød has a temperate oceanic climate, averaging 8.4 °C annually with 694 mm of rain per year.
Climate normals · ERA5
HillerødCapital Region
- coords
- 55.93°, 12.30°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
8.4°C
Average daily high
10.5°C
Average daily low
6.3°C
Annual rainfall
694mm
Sunshine / day
7.9h
Mean relative humidity
81%
Average peak wind
26.0km/h
Seasonal range
16.8°C
Frost days (< 0 °C)
61 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
47.4 cm
Average feels-like high
7.0 °C
Average feels-like low
2.2 °C
Average peak gust
41.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
30.3 °C
8 July 1989
Coldest day
-18.8 °C
25 January 1942
Wettest day
63 mm
22 September 1967
Windiest day
77.7 km/h
8 January 2005
Strongest gust
131.8 km/h
24 November 1981
Hottest feels-like
31.9 °C
8 July 1989
Coldest feels-like
-27.9 °C
25 January 1942
Snowiest day
15.3 cm
10 April 1970
Sunniest day
16.8 h
24 June 2009
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.5 °C | +2.5 °C | 65 mm | +13 mm |
| Feb | 3.1 °C | +1.2 °C | 17 mm | -24 mm |
| Mar | 8.0 °C | +3.6 °C | 19 mm | -23 mm |
| Apr | 12.2 °C | +3.4 °C | 13 mm | -28 mm |
| May | 14.3 °C | +0.4 °C | 54 mm | +3 mm |
| Jun | 18.5 °C | +0.9 °C | 86 mm | +22 mm |
| Jul | 21.2 °C | +1.6 °C | 110 mm | +35 mm |
| Aug | 19.9 °C | +0.5 °C | 49 mm | -31 mm |
| Sep | 18.3 °C | +2.2 °C | 71 mm | +3 mm |
| Oct | 12.5 °C | +1.2 °C | 99 mm | +36 mm |
| Nov | 7.7 °C | +1.0 °C | 48 mm | -12 mm |
| Dec | 6.4 °C | +2.7 °C | 35 mm | -23 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Hillerød (Denmark) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.4 °C and it receives 694 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 February (0.3 °C). Rainfall peaks in August.
Hillerød averages 61 frost days, 0 hot days (≥ 30 °C) and 138 rainy days per year.
Hillerød 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 84 to 38 per year over the period.
The hottest day of the period reached 30.3 °C (on 8 July 1989) and the coldest -18.8 °C (on 25 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.
Compare Hillerød with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hillerød
Other cities — Denmark
Frequently asked questions
What is the climate of Hillerød?
Hillerød has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.4 °C and it receives 694 mm of precipitation per year.
What is the hottest day ever recorded in Hillerød?
The hottest day measured in Hillerød between 1940 and 2025 was 8 July 1989, reaching 30.3 °C.
What is the coldest day in Hillerød?
The coldest day measured in Hillerød between 1940 and 2025 was 25 January 1942, at -18.8 °C.
Does it snow in Hillerød?
Yes. Hillerød gets on average 47.4 cm of snow per year and has around 61 frost days.
Has the climate of Hillerød warmed?
Yes: Hillerød warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hillerød?
The wettest day measured in Hillerød between 1940 and 2025 was 22 September 1967, with 63 mm of rain in 24 hours.
What was the windiest day in Hillerød?
The windiest day measured in Hillerød between 1940 and 2025 was 8 January 2005, with winds reaching 77.7 km/h.
What is the warmest month in Hillerød?
The warmest month in Hillerød is July (17.1 °C on average); the coldest is February (0.3 °C).
How much does it rain in Hillerød?
Hillerød receives on average 694 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Hillerød?
Hillerød gets on average 7.9 hours of sunshine per day, roughly 2,884 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hillerød?
The heaviest 24-hour snowfall measured in Hillerød between 1940 and 2025 was 10 April 1970, with 15.3 cm.
Are there tropical nights in Hillerød?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Hillerød.
What was the most extreme apparent temperature in Hillerød?
In Hillerød, between 1940 and 2025, the highest apparent temperature reached 31.9 °C on 8 July 1989, and the lowest was -27.9 °C on 25 January 1942.
These forecasts and records come from our own weather API. Developer documentation →