CFSv2 monthly mean SSTs (clim19822010)
 TrgMonth     SST34
   202009    -1.05
   202010    -1.23
   202011    -1.63
   202012    -1.83
   202101    -1.67
   202102    -1.27
   202103    -0.80
   202104    -0.40
   202105    -0.29