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
   201203   -.391437
   201204   -.290123
   201205   -.110870
   201206    .078186
   201207    .301849
   201208    .358124
   201209    .402222
   201210    .329498
   201211    .305969