Helmstedt climate — normals and trends
Helmstedt (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.2 °C and it receives 617 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 (18.1 °C on average) and the coldest is January (0.5 °C). Rainfall peaks in July.
Helmstedt averages 70 frost days, 5 hot days (≥ 30 °C) and 132 rainy days per year.
Helmstedt has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 86 to 54 per year over the period.
The hottest day of the period reached 38.2 °C (on 2 July 2025) and the coldest -26.5 °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
HelmstedtLower Saxony
- coords
- 52.23°, 11.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.2°C
Average daily high
12.8°C
Average daily low
5.8°C
Annual rainfall
617mm
Sunshine / day
7.3h
Mean relative humidity
77%
Average peak wind
17.4km/h
Seasonal range
17.6°C
Frost days (< 0 °C)
70 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
37.3 cm
Average feels-like high
10.2 °C
Average feels-like low
2.9 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.41 · 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
38.2 °C
2 July 2025
Coldest day
-26.5 °C
27 January 1942
Wettest day
48 mm
11 September 2003
Windiest day
60.0 km/h
13 November 1972
Strongest gust
137.2 km/h
13 November 1972
Hottest feels-like
38.8 °C
14 August 2025
Coldest feels-like
-32.0 °C
27 January 1942
Snowiest day
16.5 cm
2 January 1987
Sunniest day
16.0 h
12 June 2014
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 | 4.8 °C | +2.2 °C | 74 mm | +27 mm |
| Feb | 4.9 °C | +1.1 °C | 23 mm | -18 mm |
| Mar | 12.2 °C | +4.3 °C | 10 mm | -36 mm |
| Apr | 16.7 °C | +3.8 °C | 30 mm | -16 mm |
| May | 19.3 °C | +1.8 °C | 42 mm | -16 mm |
| Jun | 24.3 °C | +3.6 °C | 53 mm | -8 mm |
| Jul | 24.2 °C | +1.6 °C | 78 mm | +14 mm |
| Aug | 25.7 °C | +3.3 °C | 34 mm | -26 mm |
| Sep | 20.9 °C | +2.3 °C | 60 mm | +10 mm |
| Oct | 13.5 °C | +0.2 °C | 59 mm | +15 mm |
| Nov | 8.7 °C | +1.4 °C | 48 mm | -1 mm |
| Dec | 6.5 °C | +2.6 °C | 24 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 Helmstedt?
Helmstedt has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.2 °C and it receives 617 mm of precipitation per year.
What is the hottest day ever recorded in Helmstedt?
The hottest day measured in Helmstedt between 1940 and 2025 was 2 July 2025, reaching 38.2 °C.
What is the coldest day in Helmstedt?
The coldest day measured in Helmstedt between 1940 and 2025 was 27 January 1942, at -26.5 °C.
Does it snow in Helmstedt?
Yes. Helmstedt gets on average 37.3 cm of snow per year and has around 70 frost days.
Has the climate of Helmstedt warmed?
Yes: Helmstedt warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Helmstedt?
The wettest day measured in Helmstedt between 1940 and 2025 was 11 September 2003, with 48 mm of rain in 24 hours.
What was the windiest day in Helmstedt?
The windiest day measured in Helmstedt between 1940 and 2025 was 13 November 1972, with winds reaching 60.0 km/h.
What is the warmest month in Helmstedt?
The warmest month in Helmstedt is July (18.1 °C on average); the coldest is January (0.5 °C).
How much does it rain in Helmstedt?
Helmstedt receives on average 617 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Helmstedt?
Helmstedt gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Helmstedt?
The heaviest 24-hour snowfall measured in Helmstedt between 1940 and 2025 was 2 January 1987, with 16.5 cm.
Are there tropical nights in Helmstedt?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Helmstedt.
What was the most extreme apparent temperature in Helmstedt?
In Helmstedt, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 14 August 2025, and the lowest was -32.0 °C on 27 January 1942.
Compare Helmstedt with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Helmstedt