Jan -1.8   -11.7  -6.8  -999 4 M1 O1a 100
Feb  2.3   -9.1   -3.4  -999 5 M1 O1a 100
Mar  6.8   -5.8    0.5  -999 8 M1 O1a 100 
Apr  11.7  -2.7    4.5  -999 10 M1 O1a 80 
May  16.3   0.6    8.5  -999 11 M2 O1a 60 
Jun  19     3.6    11.3 -999 11 M2 O1a 40 
Jul  22.3   5.3    13.8 -999 10 M2 O1a 80 
Aug  22.5   5.1    13.8 -999 9 M2 O1a 60 
Sep  18.5   1.6    10.1 -999 9 M2 O1a 60
Oct  11.7  -1.7    5    -999 9 M1 O1a 60 
Nov  2.7   -6.4   -1.9  -999 5 M1 O1a 100
Dec -1.5   -11.1  -6.3  -999 4 M1 O1a 100