Jan -0.5   -6.6   -3.6  -999 4 M1 O1a 100
Feb  4     -4.2   -0.1  -999 5 M1 O1a 100
Mar  10.5  -0.6    5    -999 8 M1 O1a 100 
Apr  16.2   3.3    9.8  -999 10 M1 O1a 80 
May  20.9   7.9    14.4 -999 11 M2 O1a 60 
Jun  24.7   12     18.4 -999 11 M2 O1a 40 
Jul  28.3   14.3   21.4 -999 10 M2 O1a 80 
Aug  27.9   14.1   21   -999 9 M2 O1a 60 
Sep  22.1   9.2    15.7 -999 9 M2 O1a 60
Oct  13.7   3.9    8.8  -999 9 M1 O1a 60 
Nov  4.9   -1.2    1.9  -999 5 M1 O1a 100
Dec  0.3   -5.2   -2.4  -999 4 M1 O1a 100