Arnstadt climate — normals and trends
Arnstadt (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.5 °C and it receives 817 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 (16.6 °C on average) and the coldest is January (-1.8 °C). Rainfall peaks in June.
Arnstadt averages 100 frost days, 2 hot days (≥ 30 °C) and 156 rainy days per year.
Arnstadt 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 117 to 83 per year over the period.
The hottest day of the period reached 35.8 °C (on 14 August 2025) and the coldest -26.2 °C (on 19 January 1940).
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
ArnstadtThuringia
- coords
- 50.84°, 10.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.5°C
Average daily high
11.0°C
Average daily low
4.1°C
Annual rainfall
817mm
Sunshine / day
7.6h
Mean relative humidity
80%
Average peak wind
16.5km/h
Seasonal range
18.4°C
Frost days (< 0 °C)
100 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
86.0 cm
Average feels-like high
8.3 °C
Average feels-like low
1.1 °C
Average peak gust
37.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
35.8 °C
14 August 2025
Coldest day
-26.2 °C
19 January 1940
Wettest day
68 mm
10 August 1981
Windiest day
48.6 km/h
18 January 2007
Strongest gust
130.0 km/h
18 January 2007
Hottest feels-like
38.9 °C
7 July 1957
Coldest feels-like
-31.6 °C
11 January 1940
Snowiest day
19.2 cm
2 March 1987
Sunniest day
15.6 h
13 June 2006
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 | 3.9 °C | +3.5 °C | 67 mm | +12 mm |
| Feb | 2.9 °C | +1.1 °C | 25 mm | -25 mm |
| Mar | 10.6 °C | +4.3 °C | 27 mm | -31 mm |
| Apr | 15.0 °C | +3.7 °C | 45 mm | -20 mm |
| May | 17.9 °C | +2.1 °C | 49 mm | -41 mm |
| Jun | 23.9 °C | +4.8 °C | 80 mm | -12 mm |
| Jul | 23.2 °C | +2.2 °C | 97 mm | +8 mm |
| Aug | 24.7 °C | +3.9 °C | 71 mm | -16 mm |
| Sep | 18.8 °C | +1.8 °C | 106 mm | +45 mm |
| Oct | 11.7 °C | +0.1 °C | 67 mm | +12 mm |
| Nov | 6.6 °C | +1.3 °C | 28 mm | -29 mm |
| Dec | 4.1 °C | +2.4 °C | 17 mm | -43 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 Arnstadt?
Arnstadt has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.5 °C and it receives 817 mm of precipitation per year.
What is the hottest day ever recorded in Arnstadt?
The hottest day measured in Arnstadt between 1940 and 2025 was 14 August 2025, reaching 35.8 °C.
What is the coldest day in Arnstadt?
The coldest day measured in Arnstadt between 1940 and 2025 was 19 January 1940, at -26.2 °C.
Does it snow in Arnstadt?
Yes. Arnstadt gets on average 86.0 cm of snow per year and has around 100 frost days.
Has the climate of Arnstadt warmed?
Yes: Arnstadt warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arnstadt?
The wettest day measured in Arnstadt between 1940 and 2025 was 10 August 1981, with 68 mm of rain in 24 hours.
What was the windiest day in Arnstadt?
The windiest day measured in Arnstadt between 1940 and 2025 was 18 January 2007, with winds reaching 48.6 km/h.
What is the warmest month in Arnstadt?
The warmest month in Arnstadt is July (16.6 °C on average); the coldest is January (-1.8 °C).
How much does it rain in Arnstadt?
Arnstadt receives on average 817 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Arnstadt?
Arnstadt gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Arnstadt?
The heaviest 24-hour snowfall measured in Arnstadt between 1940 and 2025 was 2 March 1987, with 19.2 cm.
Are there tropical nights in Arnstadt?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Arnstadt.
What was the most extreme apparent temperature in Arnstadt?
In Arnstadt, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 7 July 1957, and the lowest was -31.6 °C on 11 January 1940.
Compare Arnstadt with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arnstadt