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
   201312    -0.13
   201401    -0.19
   201402    -0.06
   201403     0.19
   201404     0.36
   201405     0.49
   201406     0.61
   201407     0.70
   201408     0.72
   201409     0.65