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


SAGINAW st, (357444)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/20 08/30 12/65 09/11 09/12 09/16 09/19 09/21 09/27 10/04 11/01
32.5 09/13 09/18 12/65 09/24 09/30 10/03 10/04 10/09 10/14 10/18 11/08
28.5 09/14 10/02 12/65 10/14 10/17 10/23 10/26 10/31 11/09 11/19 11/30
24.5 10/02 10/26 12/65 11/06 11/12 11/21 11/26 12/06 12/17 12/23 **/**
20.5 10/29 11/11 12/65 11/27 12/11 12/14 12/19 12/22 **/** **/** **/**
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