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


BUTTE FALLS 1 SE, st (351207)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/06 08/18 12/65 08/27 08/29 09/01 09/03 09/08 09/10 09/17 10/16
32.5 08/22 09/01 12/65 09/14 09/16 09/17 09/20 09/22 09/27 10/03 10/20
28.5 09/12 09/18 12/65 09/22 09/26 09/29 10/06 10/10 10/15 10/22 10/30
24.5 09/14 09/24 12/65 10/08 10/09 10/17 10/18 10/21 10/26 10/31 11/10
20.5 09/14 10/08 12/65 10/18 10/25 10/27 11/01 11/04 11/05 11/14 11/18
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