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Table 2

Mean air temperature (°C) in January–March during the cold (CW) and mild winters (MW) and in spring (April) and the term of ice break-up (L bd) in 2010–2014.

Year Type of winter January February March Average for winter April L bd
2010 CW –9 –2.9 2.9 –3 9.1 Begining-of-April
2011 MW –1.6 –4.6 2.9 –1.4 9.8 Begining-of-March
2012 CW –2.4 –8 4 –2.1 9.3 End-of-March
2013 CW –4.2 –0.8 –2.4 –2.5 8.1 End-of-April
2014 MW –3.7 0.9 6 1.1 9.9 Mid-February

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