Jan -4.2   -12.4  -8.3  -999 10 M1 O1a 100
Feb  0.3   -9.2   -4.5  -999 12 M1 O1a 100
Mar  5.5   -5.4    0    -999 11 M1 O1a 100 
Apr  11    -1.2    4.9  -999 11 M1 O1a 80 
May  15.8   3.1    9.5  -999 10 M2 O1a 60 
Jun  19     6.7    12.9 -999 9 M2 O1a 40 
Jul  22     9      15.6 -999 8 M2 O1a 80 
Aug  21.9   8.3    15.1 -999 7 M2 O1a 60 
Sep  17.1   4      10.5 -999 8 M2 O1a 60
Oct  9.9   -0.6    4.7  -999 11 M1 O1a 60 
Nov  0.9   -6.1   -2.6  -999 12 M1 O1a 100
Dec -3.6   -11.4  -7.5  -999 12 M1 O1a 100