CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202503    -0.26
   202504    -0.39
   202505    -0.40
   202506    -0.33
   202507    -0.26
   202508    -0.23
   202509    -0.19
   202510    -0.17
   202511    -0.24