Altensteig climate — normals and trends
Altensteig (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.2 °C and it receives 1,254 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 (17.2 °C on average) and the coldest is January (-1.0 °C). Rainfall peaks in May.
Altensteig averages 92 frost days, 3 hot days (≥ 30 °C) and 175 rainy days per year.
Altensteig has warmed by +1.9 °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 109 to 75 per year over the period.
The hottest day of the period reached 35.1 °C (on 5 July 2015) and the coldest -27.3 °C (on 10 February 1956).
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
AltensteigBaden-Wurttemberg
- coords
- 48.59°, 8.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.2°C
Average daily high
11.9°C
Average daily low
4.7°C
Annual rainfall
1,254mm
Sunshine / day
8.3h
Mean relative humidity
79%
Average peak wind
14.7km/h
Seasonal range
18.2°C
Frost days (< 0 °C)
92 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
175 d/yr
Annual snowfall
133.2 cm
Average feels-like high
9.6 °C
Average feels-like low
2.1 °C
Average peak gust
35.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
35.1 °C
5 July 2015
Coldest day
-27.3 °C
10 February 1956
Wettest day
64 mm
20 November 2015
Windiest day
56.1 km/h
26 December 1999
Strongest gust
138.6 km/h
26 December 1999
Hottest feels-like
38.8 °C
6 July 1957
Coldest feels-like
-33.0 °C
10 February 1956
Snowiest day
27.4 cm
6 February 1958
Sunniest day
15.0 h
20 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 | 4.8 °C | +3.3 °C | 124 mm | +16 mm |
| Feb | 5.2 °C | +1.9 °C | 65 mm | -33 mm |
| Mar | 10.8 °C | +3.2 °C | 45 mm | -54 mm |
| Apr | 15.2 °C | +3.1 °C | 60 mm | -38 mm |
| May | 18.5 °C | +2.1 °C | 82 mm | -39 mm |
| Jun | 25.2 °C | +5.6 °C | 93 mm | -24 mm |
| Jul | 22.9 °C | +1.3 °C | 188 mm | +78 mm |
| Aug | 24.4 °C | +3.1 °C | 106 mm | -2 mm |
| Sep | 18.0 °C | +0.3 °C | 169 mm | +80 mm |
| Oct | 12.9 °C | +0.4 °C | 129 mm | +41 mm |
| Nov | 8.1 °C | +1.9 °C | 78 mm | -27 mm |
| Dec | 5.3 °C | +2.7 °C | 31 mm | -84 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 Altensteig?
Altensteig has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.2 °C and it receives 1,254 mm of precipitation per year.
What is the hottest day ever recorded in Altensteig?
The hottest day measured in Altensteig between 1940 and 2025 was 5 July 2015, reaching 35.1 °C.
What is the coldest day in Altensteig?
The coldest day measured in Altensteig between 1940 and 2025 was 10 February 1956, at -27.3 °C.
Does it snow in Altensteig?
Yes. Altensteig gets on average 133.2 cm of snow per year and has around 92 frost days.
Has the climate of Altensteig warmed?
Yes: Altensteig warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Altensteig?
The wettest day measured in Altensteig between 1940 and 2025 was 20 November 2015, with 64 mm of rain in 24 hours.
What was the windiest day in Altensteig?
The windiest day measured in Altensteig between 1940 and 2025 was 26 December 1999, with winds reaching 56.1 km/h.
What is the warmest month in Altensteig?
The warmest month in Altensteig is July (17.2 °C on average); the coldest is January (-1.0 °C).
How much does it rain in Altensteig?
Altensteig receives on average 1,254 mm of precipitation per year, spread over about 175 rainy days.
Is it sunny in Altensteig?
Altensteig gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Altensteig?
The heaviest 24-hour snowfall measured in Altensteig between 1940 and 2025 was 6 February 1958, with 27.4 cm.
Are there tropical nights in Altensteig?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Altensteig.
What was the most extreme apparent temperature in Altensteig?
In Altensteig, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 6 July 1957, and the lowest was -33.0 °C on 10 February 1956.
Compare Altensteig with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Altensteig