CFSv2 monthly mean SSTs (clim19822010)
 TrgMonth     SST34
   201707     0.41
   201708     0.23
   201709     0.15
   201710     0.24
   201711    -0.04
   201712    -0.29
   201801    -0.44
   201802    -0.26
   201803     0.18