Sontra climate — normals and trends
Sontra (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 710 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 (17.1 °C on average) and the coldest is January (-0.6 °C). Rainfall peaks in July.
Sontra averages 83 frost days, 3 hot days (≥ 30 °C) and 143 rainy days per year.
Sontra has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 101 to 65 per year over the period.
The hottest day of the period reached 36.5 °C (on 2 July 2025) and the coldest -30.0 °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
SontraHesse
- coords
- 51.07°, 9.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
11.8°C
Average daily low
4.9°C
Annual rainfall
710mm
Sunshine / day
7.1h
Mean relative humidity
79%
Average peak wind
16.6km/h
Seasonal range
17.7°C
Frost days (< 0 °C)
83 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
59.1 cm
Average feels-like high
9.2 °C
Average feels-like low
1.9 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
36.5 °C
2 July 2025
Coldest day
-30.0 °C
19 January 1940
Wettest day
94 mm
10 August 1981
Windiest day
49.8 km/h
18 January 2007
Strongest gust
127.1 km/h
18 January 2007
Hottest feels-like
38.8 °C
7 July 1957
Coldest feels-like
-35.1 °C
19 January 1940
Snowiest day
14.9 cm
2 March 1987
Sunniest day
15.5 h
13 June 2009
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 | 4.4 °C | +2.9 °C | 100 mm | +45 mm |
| Feb | 3.9 °C | +0.9 °C | 29 mm | -22 mm |
| Mar | 11.7 °C | +4.4 °C | 12 mm | -43 mm |
| Apr | 15.9 °C | +3.9 °C | 51 mm | -5 mm |
| May | 18.8 °C | +2.4 °C | 51 mm | -17 mm |
| Jun | 24.1 °C | +4.4 °C | 51 mm | -18 mm |
| Jul | 23.9 °C | +2.3 °C | 76 mm | +6 mm |
| Aug | 24.9 °C | +3.5 °C | 43 mm | -23 mm |
| Sep | 19.1 °C | +1.5 °C | 67 mm | +14 mm |
| Oct | 12.0 °C | -0.2 °C | 69 mm | +17 mm |
| Nov | 7.3 °C | +1.2 °C | 32 mm | -25 mm |
| Dec | 5.1 °C | +2.4 °C | 18 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 Sontra?
Sontra has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 710 mm of precipitation per year.
What is the hottest day ever recorded in Sontra?
The hottest day measured in Sontra between 1940 and 2025 was 2 July 2025, reaching 36.5 °C.
What is the coldest day in Sontra?
The coldest day measured in Sontra between 1940 and 2025 was 19 January 1940, at -30.0 °C.
Does it snow in Sontra?
Yes. Sontra gets on average 59.1 cm of snow per year and has around 83 frost days.
Has the climate of Sontra warmed?
Yes: Sontra warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sontra?
The wettest day measured in Sontra between 1940 and 2025 was 10 August 1981, with 94 mm of rain in 24 hours.
What was the windiest day in Sontra?
The windiest day measured in Sontra between 1940 and 2025 was 18 January 2007, with winds reaching 49.8 km/h.
What is the warmest month in Sontra?
The warmest month in Sontra is July (17.1 °C on average); the coldest is January (-0.6 °C).
How much does it rain in Sontra?
Sontra receives on average 710 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Sontra?
Sontra gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sontra?
The heaviest 24-hour snowfall measured in Sontra between 1940 and 2025 was 2 March 1987, with 14.9 cm.
Are there tropical nights in Sontra?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sontra.
What was the most extreme apparent temperature in Sontra?
In Sontra, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 7 July 1957, and the lowest was -35.1 °C on 19 January 1940.
Compare Sontra with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sontra