Lahr climate — normals and trends
Lahr (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.4 °C and it receives 865 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 (19.7 °C on average) and the coldest is January (1.3 °C). Rainfall peaks in May.
Lahr averages 63 frost days, 11 hot days (≥ 30 °C) and 149 rainy days per year.
Lahr 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 79 to 47 per year over the period.
The hottest day of the period reached 39.1 °C (on 5 July 2015) and the coldest -21.1 °C (on 23 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
LahrBaden-Wurttemberg
- coords
- 48.34°, 7.87°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.4°C
Average daily high
14.5°C
Average daily low
6.7°C
Annual rainfall
865mm
Sunshine / day
8.4h
Mean relative humidity
76%
Average peak wind
12.9km/h
Seasonal range
18.4°C
Frost days (< 0 °C)
63 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
149 d/yr
Annual snowfall
41.1 cm
Average feels-like high
12.7 °C
Average feels-like low
4.7 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
11.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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).
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
39.1 °C
5 July 2015
Coldest day
-21.1 °C
23 January 1942
Wettest day
58 mm
16 August 1980
Windiest day
53.5 km/h
26 December 1999
Strongest gust
122.4 km/h
26 December 1999
Hottest feels-like
39.8 °C
5 July 2015
Coldest feels-like
-27.0 °C
10 February 1956
Snowiest day
19.7 cm
7 February 1958
Sunniest day
15.0 h
19 May 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 | 7.0 °C | +3.0 °C | 98 mm | +25 mm |
| Feb | 7.4 °C | +1.4 °C | 58 mm | -9 mm |
| Mar | 13.2 °C | +2.7 °C | 29 mm | -38 mm |
| Apr | 17.6 °C | +3.0 °C | 54 mm | -13 mm |
| May | 21.5 °C | +2.6 °C | 47 mm | -38 mm |
| Jun | 27.7 °C | +5.4 °C | 84 mm | +7 mm |
| Jul | 25.5 °C | +1.0 °C | 85 mm | +14 mm |
| Aug | 26.5 °C | +2.4 °C | 104 mm | +34 mm |
| Sep | 20.2 °C | -0.2 °C | 140 mm | +76 mm |
| Oct | 15.3 °C | +0.5 °C | 74 mm | +8 mm |
| Nov | 10.0 °C | +1.6 °C | 76 mm | -3 mm |
| Dec | 7.2 °C | +2.3 °C | 24 mm | -56 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 Lahr?
Lahr has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.4 °C and it receives 865 mm of precipitation per year.
What is the hottest day ever recorded in Lahr?
The hottest day measured in Lahr between 1940 and 2025 was 5 July 2015, reaching 39.1 °C.
What is the coldest day in Lahr?
The coldest day measured in Lahr between 1940 and 2025 was 23 January 1942, at -21.1 °C.
Does it snow in Lahr?
Yes. Lahr gets on average 41.1 cm of snow per year and has around 63 frost days.
Has the climate of Lahr warmed?
Yes: Lahr warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lahr?
The wettest day measured in Lahr between 1940 and 2025 was 16 August 1980, with 58 mm of rain in 24 hours.
What was the windiest day in Lahr?
The windiest day measured in Lahr between 1940 and 2025 was 26 December 1999, with winds reaching 53.5 km/h.
What is the warmest month in Lahr?
The warmest month in Lahr is July (19.7 °C on average); the coldest is January (1.3 °C).
How much does it rain in Lahr?
Lahr receives on average 865 mm of precipitation per year, spread over about 149 rainy days.
Is it sunny in Lahr?
Lahr gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lahr?
The heaviest 24-hour snowfall measured in Lahr between 1940 and 2025 was 7 February 1958, with 19.7 cm.
Are there tropical nights in Lahr?
Yes: Lahr has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lahr?
In Lahr, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 5 July 2015, and the lowest was -27.0 °C on 10 February 1956.
Compare Lahr with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lahr