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


IDAHO CITY 11 SW, st (104450)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 07/31 08/01 12/65 08/07 08/12 08/16 08/21 08/24 08/28 09/03 09/19
32.5 08/02 08/11 12/65 08/24 08/29 09/01 09/03 09/08 09/10 09/14 10/17
28.5 08/02 08/31 12/65 09/08 09/10 09/13 09/16 09/20 09/23 10/03 11/03
24.5 08/31 09/17 12/65 09/23 09/26 10/01 10/04 10/08 10/13 10/20 11/09
20.5 09/14 09/26 12/65 10/09 10/14 10/16 10/19 10/24 10/29 11/05 11/25
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