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
   201407     0.39
   201408     0.38
   201409     0.63
   201410     0.95
   201411     1.13
   201412     1.13
   201501     1.05
   201502     0.96
   201503     0.90
   201504     0.83