Aichach climate — normals and trends
Aichach (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.2 °C and it receives 881 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 (18.5 °C on average) and the coldest is January (-0.5 °C). Rainfall peaks in June.
Aichach averages 79 frost days, 6 hot days (≥ 30 °C) and 149 rainy days per year.
Aichach has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 98 to 60 per year over the period.
The hottest day of the period reached 38.1 °C (on 27 July 1983) and the coldest -29.6 °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
AichachBavaria
- coords
- 48.46°, 11.13°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.2°C
Average daily high
13.2°C
Average daily low
5.6°C
Annual rainfall
881mm
Sunshine / day
8.1h
Mean relative humidity
76%
Average peak wind
15.1km/h
Seasonal range
19.0°C
Frost days (< 0 °C)
79 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
149 d/yr
Annual snowfall
63.4 cm
Average feels-like high
10.9 °C
Average feels-like low
2.8 °C
Average peak gust
32.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °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
38.1 °C
27 July 1983
Coldest day
-29.6 °C
10 February 1956
Wettest day
75 mm
29 May 2007
Windiest day
54.0 km/h
26 December 1999
Strongest gust
125.6 km/h
26 December 1999
Hottest feels-like
39.0 °C
7 July 1957
Coldest feels-like
-34.9 °C
10 February 1956
Snowiest day
14.9 cm
7 February 1958
Sunniest day
15.2 h
22 June 2025
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 | 4.3 °C | +2.3 °C | 83 mm | +26 mm |
| Feb | 4.8 °C | +0.5 °C | 37 mm | -18 mm |
| Mar | 11.4 °C | +2.2 °C | 44 mm | -15 mm |
| Apr | 17.1 °C | +3.3 °C | 26 mm | -41 mm |
| May | 18.9 °C | +0.7 °C | 56 mm | -39 mm |
| Jun | 26.2 °C | +4.8 °C | 68 mm | -36 mm |
| Jul | 24.1 °C | +0.7 °C | 122 mm | +21 mm |
| Aug | 25.3 °C | +2.2 °C | 88 mm | -6 mm |
| Sep | 19.7 °C | +0.5 °C | 123 mm | +56 mm |
| Oct | 13.1 °C | -0.4 °C | 59 mm | +0 mm |
| Nov | 7.0 °C | +0.3 °C | 69 mm | +7 mm |
| Dec | 3.7 °C | +0.7 °C | 25 mm | -37 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 Aichach?
Aichach has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.2 °C and it receives 881 mm of precipitation per year.
What is the hottest day ever recorded in Aichach?
The hottest day measured in Aichach between 1940 and 2025 was 27 July 1983, reaching 38.1 °C.
What is the coldest day in Aichach?
The coldest day measured in Aichach between 1940 and 2025 was 10 February 1956, at -29.6 °C.
Does it snow in Aichach?
Yes. Aichach gets on average 63.4 cm of snow per year and has around 79 frost days.
Has the climate of Aichach warmed?
Yes: Aichach warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aichach?
The wettest day measured in Aichach between 1940 and 2025 was 29 May 2007, with 75 mm of rain in 24 hours.
What was the windiest day in Aichach?
The windiest day measured in Aichach between 1940 and 2025 was 26 December 1999, with winds reaching 54.0 km/h.
What is the warmest month in Aichach?
The warmest month in Aichach is July (18.5 °C on average); the coldest is January (-0.5 °C).
How much does it rain in Aichach?
Aichach receives on average 881 mm of precipitation per year, spread over about 149 rainy days.
Is it sunny in Aichach?
Aichach 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 Aichach?
The heaviest 24-hour snowfall measured in Aichach between 1940 and 2025 was 7 February 1958, with 14.9 cm.
Are there tropical nights in Aichach?
Yes: Aichach has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aichach?
In Aichach, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 7 July 1957, and the lowest was -34.9 °C on 10 February 1956.
Compare Aichach with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aichach