CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202401     1.58
   202402     1.07
   202403     0.58
   202404     0.20
   202405    -0.29
   202406    -0.73
   202407    -0.98
   202408    -1.25
   202409    -1.37