Grabs climate — normals and trends
Grabs (Switzerland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.3 °C and it receives 1,787 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 (15.6 °C on average) and the coldest is January (-3.4 °C). Rainfall peaks in July.
Grabs averages 138 frost days, 0 hot days (≥ 30 °C) and 190 rainy days per year.
Grabs has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 167 to 109 per year over the period.
The hottest day of the period reached 31.4 °C (on 7 July 2015) and the coldest -29.1 °C (on 7 January 1985).
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
GrabsCanton of St. Gallen
- coords
- 47.18°, 9.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.3°C
Average daily high
10.8°C
Average daily low
2.1°C
Annual rainfall
1,787mm
Sunshine / day
8.3h
Mean relative humidity
79%
Average peak wind
7.2km/h
Seasonal range
19.0°C
Frost days (< 0 °C)
138 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
190 d/yr
Annual snowfall
324.4 cm
Average feels-like high
9.3 °C
Average feels-like low
-0.3 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.66 · 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
31.4 °C
7 July 2015
Coldest day
-29.1 °C
7 January 1985
Wettest day
89 mm
6 August 2000
Windiest day
19.2 km/h
27 February 1990
Strongest gust
130.3 km/h
27 February 1990
Hottest feels-like
35.5 °C
6 July 1957
Coldest feels-like
-33.9 °C
7 January 1985
Snowiest day
35.1 cm
14 January 2021
Sunniest day
15.0 h
26 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 | 3.7 °C | +3.3 °C | 98 mm | -14 mm |
| Feb | 5.3 °C | +2.8 °C | 40 mm | -68 mm |
| Mar | 10.0 °C | +3.6 °C | 105 mm | -15 mm |
| Apr | 14.7 °C | +4.3 °C | 76 mm | -58 mm |
| May | 15.5 °C | +0.6 °C | 201 mm | +24 mm |
| Jun | 23.4 °C | +5.0 °C | 150 mm | -66 mm |
| Jul | 19.7 °C | -0.7 °C | 321 mm | +101 mm |
| Aug | 21.8 °C | +1.8 °C | 224 mm | +16 mm |
| Sep | 17.2 °C | +0.3 °C | 207 mm | +61 mm |
| Oct | 11.9 °C | -0.3 °C | 103 mm | -8 mm |
| Nov | 7.6 °C | +2.0 °C | 119 mm | -2 mm |
| Dec | 5.4 °C | +4.3 °C | 31 mm | -86 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 Grabs?
Grabs has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.3 °C and it receives 1,787 mm of precipitation per year.
What is the hottest day ever recorded in Grabs?
The hottest day measured in Grabs between 1940 and 2025 was 7 July 2015, reaching 31.4 °C.
What is the coldest day in Grabs?
The coldest day measured in Grabs between 1940 and 2025 was 7 January 1985, at -29.1 °C.
Does it snow in Grabs?
Yes. Grabs gets on average 324.4 cm of snow per year and has around 138 frost days.
Has the climate of Grabs warmed?
Yes: Grabs warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grabs?
The wettest day measured in Grabs between 1940 and 2025 was 6 August 2000, with 89 mm of rain in 24 hours.
What was the windiest day in Grabs?
The windiest day measured in Grabs between 1940 and 2025 was 27 February 1990, with winds reaching 19.2 km/h.
What is the warmest month in Grabs?
The warmest month in Grabs is July (15.6 °C on average); the coldest is January (-3.4 °C).
How much does it rain in Grabs?
Grabs receives on average 1,787 mm of precipitation per year, spread over about 190 rainy days.
Is it sunny in Grabs?
Grabs 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 Grabs?
The heaviest 24-hour snowfall measured in Grabs between 1940 and 2025 was 14 January 2021, with 35.1 cm.
Are there tropical nights in Grabs?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Grabs.
What was the most extreme apparent temperature in Grabs?
In Grabs, between 1940 and 2025, the highest apparent temperature reached 35.5 °C on 6 July 1957, and the lowest was -33.9 °C on 7 January 1985.
Compare Grabs with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Grabs