CFS PDFC Seasonal SSTs
1st rec: avg(lastbs-1, lastobs, cfs month 1)
2nd rec: avg(lastbs, cfs month 1, cfs month 2)
other records: CFS 3-mo average
 TrgSeason    SST34
   201206    .238664
   201207    .556687
   201208    .684692
   201209    .940369
   201210   1.098389
   201211   1.299805
   201212   1.313477
   201301   1.134705
   201302    .957489