Fall 'Freeze' Probabilities (Jul. 31 - Dec. 31)


GRAYLAND s, a (453320)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/04 09/19 09/24 09/29 10/04 10/12 10/15 10/19 10/24 10/30 11/13
32.5 10/09 10/15 10/21 10/27 10/29 10/31 11/08 11/11 11/19 11/27 12/04
28.5 10/26 11/03 11/13 11/18 11/23 11/30 12/07 12/13 12/18 12/26 **/**
24.5 10/30 11/23 12/05 12/14 12/18 12/21 **/** **/** **/** **/** **/**
20.5 11/12 12/16 12/23 **/** **/** **/** **/** **/** **/** **/** **/**
Graphic Output
 Earliest - Earliest date when a minimum temperature below the threshold occurred.
            **/** means there has never been a year when the minimum temperature
                  went below the threshold temperature during the July 31 to 
                  Dec. 31 period or insufficient data to determine a date.
            07/31 means the minimum temperature can go below the threshold 
                  temperature any day during the July 31 to Dec. 31 period.
xx% - Percent probability that a minimum temperature below the threshold will occur on or before the given date. **/** means non-occurrence of the threshold or insufficient data to determine a threshold.
Latest - Latest date when a minimum temperature below the threshold occurred. **/** means there has been a year when the minimum temperature didn't go below the threshold temperature during the July 31 to Dec. 31 period or insufficient data to determine a date.

Western Regional Climate Center, wrcc@dri.edu