The annual variation of temperature in Switzerland from the longtime average (1961-1990 standard) as an impressive example of climate change. The years when it was too hot are shown in red and those when it was too cold in blue. The linear temperature trend between 1864 and 2004 is +1.1 degrees Celsius per 100 years, so the entire warming 1864-2005 amounts to +1.5 degrees Celsius. The linear temperature trend for the 20th century (1901-2000) is +1.4 degrees Celsius per 100 years, and this corresponds to the entire warming of the 20th century.
Data of the graphic:
Homogene Temperatur- und Niederschlagsreihen der Schweiz
Temperatur Landoberfläche Nordhemisphäre (Climate Research Unit, University of East Anglia, UK)
