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


MC KENZIE BRG RS, st (355362)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 07/31 08/04 08/08 08/18 08/20 08/25 09/01 09/07 09/11 09/30 10/12
32.5 08/15 08/26 08/30 09/07 09/11 09/18 09/23 09/30 10/15 10/20 11/01
28.5 09/01 09/13 09/19 09/24 10/03 10/11 10/24 10/29 11/06 11/19 12/05
24.5 09/24 10/20 10/30 11/02 11/12 11/17 11/22 11/30 12/04 12/14 12/24
20.5 10/30 11/15 11/20 11/27 12/04 12/13 12/19 12/25 **/** **/** **/**
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