Jan -10.4  -19.8  -15.1 -999 4 M1 O1a 100
Feb -4.2   -15.2  -9.7  -999 5 M1 O1a 100
Mar  3     -10.1  -3.5  -999 8 M1 O1a 100 
Apr  9.2   -3.9    2.7  -999 10 M1 O1a 80 
May  14.7   0.7    7.7  -999 11 M2 O1a 60 
Jun  18.5   5.1    11.8 -999 11 M2 O1a 40 
Jul  21     7.1    14.1 -999 10 M2 O1a 80 
Aug  20.3   5.9    13.1 -999 9 M2 O1a 60 
Sep  14.8   2      8.5  -999 9 M2 O1a 60 
Oct  6.3   -2.1    2.2  -999 9 M1 O1a 60 
Nov -3.2   -10.4  -6.8  -999 5 M1 O1a 100
Dec -8.9   -17.4  -13.2 -999 4 M1 O1a 100