CFSv2 monthly mean SSTs (clim19912020)
 TrgMonth     SST34
   202412    -0.95
   202501    -1.19
   202502    -0.86
   202503    -0.58
   202504    -0.45
   202505    -0.53
   202506    -0.51
   202507    -0.33
   202508    -0.33