CFSv2 monthly mean SSTs (clim19822010)
 TrgMonth     SST34
   201712    -0.90
   201801    -1.17
   201802    -1.26
   201803    -1.12
   201804    -0.93
   201805    -0.93
   201806    -0.66
   201807    -0.43
   201808    -0.49