Sion: detailed information
Historical Weather Data
The maximum air temperature in Sion for this day for the last 72 years of observations is +28.87°C, recorded in 1961.
An absolute minimum of +2.07°C was recorded in 1957. The average temperature for this day is +21.56°C.
The heaviest rainfall (28.9 mm) in Sion was recorded in 2006. The maximum wind gusts were up to 15.77 m/s in 2015.