CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202502    -0.71
   202503    -0.38
   202504    -0.26
   202505    -0.22
   202506    -0.12
   202507    -0.05
   202508     0.03
   202509     0.20
   202510     0.25