Mean temperature change 

Updated: 1.3.2017 - Next update: 1.6.2017

Winter was milder than average

The winter months (December-February) were 2-3 degrees warmer than average and the local deviations were fairly small. The largest anomaly of 3,9 degrees was measured in Kilpisjärvi.

The lowest temperature this winter has been -41,7 degrees in Muonio on January 5th and the highest temperature was +9,1 degrees in Maarianhamina on New Year’s Eve.

Finnish Meteorological Institute

Description of indicator

Following the evolution of mean temperatures gives information on the progress of climate change. There are many factors that affect the temperatures. Annual and decadal temperature oscillations are related to changes in different weather types. Occasionally we get mild weather from southerly and westerly flows and occasionally colder weather from the north.

Finnish temperatures have risen approximately one degree Celsius since early 20th century. In Helsinki the urban heat island effect amplifies the warming trend. The temperature rise is not constant and it is partly obscured by the large natural variability which is characteristic for Finland. Globally however the temperature rise of over half a degree Celsius in the 20th century is statistically significant.