Jan -16.8  -25.6  -21.2 -999 4 M1 O1a 100
Feb -10.3  -21.7  -16.1 -999 5 M1 O1a 100
Mar -1     -14.3  -7.7  -999 7 M1 O1a 100 
Apr  9.5   -3.7    2.9  -999 8 M1 O1a 80 
May  16.7   3.2    10   -999 9 M2 O1a 60 
Jun  21.2   8.4    14.9 -999 9 M2 O1a 40 
Jul  23     10.6   16.8 -999 8 M2 O1a 80 
Aug  21.2   8.6    14.9 -999 7 M2 O1a 60 
Sep  15.3   2.9    9.1  -999 7 M2 O1a 60 
Oct  5.5   -4.2    0.6  -999 6 M1 O1a 60 
Nov -8.8   -17.1  -13   -999 5 M1 O1a 100
Dec -15.7  -23.9  -19.9 -999 4 M1 O1a 100