Glarus climate — normals and trends
Glarus (Switzerland) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 3.7 °C and it receives 2,116 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 (13.0 °C on average) and the coldest is January (-5.7 °C). Rainfall peaks in July.
Glarus averages 182 frost days, 0 hot days (≥ 30 °C) and 207 rainy days per year.
Glarus has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 210 to 154 per year over the period.
The hottest day of the period reached 29.0 °C (on 26 June 2019) and the coldest -28.0 °C (on 25 January 1947).
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
GlarusCanton of Glarus
- coords
- 47.04°, 9.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.7°C
Average daily high
7.9°C
Average daily low
-0.3°C
Annual rainfall
2,116mm
Sunshine / day
8.7h
Mean relative humidity
82%
Average peak wind
6.7km/h
Seasonal range
18.7°C
Frost days (< 0 °C)
182 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
207 d/yr
Annual snowfall
550.1 cm
Average feels-like high
6.0 °C
Average feels-like low
-3.0 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
29.0 °C
26 June 2019
Coldest day
-28.0 °C
25 January 1947
Wettest day
90 mm
6 August 1985
Windiest day
17.3 km/h
8 November 1982
Strongest gust
142.9 km/h
27 February 1990
Hottest feels-like
31.2 °C
4 July 1957
Coldest feels-like
-32.8 °C
25 January 1947
Snowiest day
41.7 cm
14 January 2021
Sunniest day
15.0 h
5 June 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 | 0.8 °C | +3.3 °C | 111 mm | -24 mm |
| Feb | 2.7 °C | +3.0 °C | 42 mm | -86 mm |
| Mar | 6.6 °C | +3.4 °C | 120 mm | -22 mm |
| Apr | 11.3 °C | +4.7 °C | 112 mm | -43 mm |
| May | 12.7 °C | +1.4 °C | 266 mm | +73 mm |
| Jun | 20.6 °C | +5.1 °C | 190 mm | -59 mm |
| Jul | 16.9 °C | -0.9 °C | 400 mm | +134 mm |
| Aug | 19.3 °C | +1.8 °C | 288 mm | +34 mm |
| Sep | 14.7 °C | +0.2 °C | 237 mm | +62 mm |
| Oct | 9.3 °C | -0.4 °C | 133 mm | +1 mm |
| Nov | 4.5 °C | +1.8 °C | 133 mm | -11 mm |
| Dec | 3.1 °C | +4.9 °C | 37 mm | -104 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 Glarus?
Glarus has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 3.7 °C and it receives 2,116 mm of precipitation per year.
What is the hottest day ever recorded in Glarus?
The hottest day measured in Glarus between 1940 and 2025 was 26 June 2019, reaching 29.0 °C.
What is the coldest day in Glarus?
The coldest day measured in Glarus between 1940 and 2025 was 25 January 1947, at -28.0 °C.
Does it snow in Glarus?
Yes. Glarus gets on average 550.1 cm of snow per year and has around 182 frost days.
Has the climate of Glarus warmed?
Yes: Glarus warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Glarus?
The wettest day measured in Glarus between 1940 and 2025 was 6 August 1985, with 90 mm of rain in 24 hours.
What was the windiest day in Glarus?
The windiest day measured in Glarus between 1940 and 2025 was 8 November 1982, with winds reaching 17.3 km/h.
What is the warmest month in Glarus?
The warmest month in Glarus is July (13.0 °C on average); the coldest is January (-5.7 °C).
How much does it rain in Glarus?
Glarus receives on average 2,116 mm of precipitation per year, spread over about 207 rainy days.
Is it sunny in Glarus?
Glarus gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Glarus?
The heaviest 24-hour snowfall measured in Glarus between 1940 and 2025 was 14 January 2021, with 41.7 cm.
Are there tropical nights in Glarus?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Glarus.
What was the most extreme apparent temperature in Glarus?
In Glarus, between 1940 and 2025, the highest apparent temperature reached 31.2 °C on 4 July 1957, and the lowest was -32.8 °C on 25 January 1947.
Compare Glarus with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Glarus