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


WICKIUP DAM, : (359316)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 07/31 07/31 08/01 08/05 08/09 08/13 08/18 08/24 09/01 09/08 09/18
32.5 07/31 08/01 08/15 08/23 08/30 09/03 09/07 09/09 09/12 09/19 10/06
28.5 07/31 08/24 09/02 09/11 09/13 09/17 09/21 09/24 10/04 10/10 10/25
24.5 08/30 09/08 09/16 09/23 09/29 10/04 10/12 10/18 10/21 10/27 11/11
20.5 09/06 09/17 09/30 10/10 10/17 10/22 10/28 11/01 11/07 11/20 12/11
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