CFSv2 monthly mean SSTs (clim19822010)
 TrgMonth     SST34
   201711    -0.80
   201712    -1.04
   201801    -1.31
   201802    -1.35
   201803    -0.94
   201804    -0.60
   201805    -0.44
   201806    -0.24
   201807    -0.01