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


LOST CREEK DAM, at (355055)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/15 09/07 09/09 09/14 09/20 09/22 09/25 09/30 10/05 10/08 10/29
32.5 09/02 09/20 09/24 09/30 10/04 10/09 10/13 10/15 10/17 10/24 11/08
28.5 09/13 10/04 10/07 10/14 10/18 10/25 10/30 11/02 11/12 11/23 12/22
24.5 10/07 10/26 10/31 11/05 11/10 11/14 11/23 12/01 12/13 12/22 **/**
20.5 10/28 11/11 11/19 11/26 12/06 12/14 12/19 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