
Iowa COOP Sites 
Growing Season Data

Attributes:
  SID:     NWS Identifier
  SPR_32:  Day of year in the spring where only 1 in 5 years would 
           have a temperature below 32 after it.
  FALL_32: Day of year in the fall where 4 in 5 years would 
           have seen a temperature below 32 by that date
  GSLEN:   FALL_32 - SPR_32 + 1
  GSRAIN:  Growing season average rainfall
  WEEK1
  ....
  WEEK30:  Starting at the date of SPR_32.  Count the next 7 days
           and average the rainfall for those dates.
