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


JEFFERSON, OREGON (354238)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/18 08/24 12/65 09/05 09/09 09/10 09/11 09/12 09/16 09/20 10/03
32.5 08/24 08/31 12/65 09/13 09/16 09/18 09/19 09/21 09/24 10/01 10/04
28.5 09/07 09/20 12/65 09/23 09/30 10/03 10/06 10/11 10/12 10/17 10/27
24.5 09/20 09/29 12/65 10/12 10/15 10/17 10/18 10/22 10/22 11/02 11/07
20.5 10/08 10/13 12/65 10/17 10/21 10/24 10/30 11/04 11/10 11/14 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