CFSv2 Seasonal SSTs (clim19822010)
first  rec: avg(lastbs-1, lastobs, CFSv2 month 1)
second rec: avg(lastbs, cfs month 1, CFSv2 month 2)
last   rec: CFSv2 month 9
other  rec: CFSv2 3-mo average
 TrgSeason    SST34
   201410     0.53
   201411     0.68
   201412     0.69
   201501     0.59
   201502     0.52
   201503     0.60
   201504     0.72
   201505     0.93
   201506     1.25
   201507     1.67