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


BONNERS FERRY, IDAHO (101079)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 07/31 08/17 08/27 09/01 09/06 09/09 09/12 09/16 09/19 09/24 10/14
32.5 08/21 09/03 09/08 09/12 09/14 09/18 09/23 09/28 10/04 10/09 10/24
28.5 08/24 09/16 09/22 09/27 10/03 10/05 10/09 10/15 10/20 10/26 11/18
24.5 09/12 10/02 10/10 10/13 10/17 10/18 10/26 11/02 11/05 11/13 11/29
20.5 09/23 10/16 10/26 11/01 11/05 11/09 11/13 11/17 11/27 12/04 12/27
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