CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202402     1.31
   202403     1.14
   202404     0.72
   202405     0.07
   202406    -0.63
   202407    -1.00
   202408    -1.20
   202409    -1.45
   202410    -1.72