CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202411    -0.71
   202412    -1.33
   202501    -1.23
   202502    -0.74
   202503    -0.37
   202504    -0.12
   202505    -0.11
   202506    -0.19
   202507     0.03