Annual

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual average

temperature (˚C)

1977-1978

−4.7

−3.9

5.4

12.7

17.4

20.9

23.2

21.1

17.0

12.2

3.0

−1.6

10.23

2008-2009

−5.1

1.5

6.7

14.9

19.2

24.5

24.9

23.5

17.8

11.5

3.9

−2.7

11.72

Temperature

difference

−1.4

5.4

1.3

2.2

1.8

3.6

1.7

2.4

0.8

−0.7

0.9

−1.1

1.49