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


PINE GROVE, o (356655)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 09/02 09/09 09/10 09/12 09/14 09/14 09/16 09/18 09/21 10/03 10/09
32.5 09/09 09/15 09/18 09/22 09/25 10/03 10/04 10/12 10/14 10/20 10/27
28.5 09/20 09/25 09/30 10/05 10/11 10/15 10/17 10/22 10/29 11/03 11/10
24.5 10/06 10/13 10/19 10/22 10/27 10/31 11/02 11/04 11/16 11/22 11/29
20.5 10/09 10/26 10/31 11/06 11/10 11/16 11/22 11/27 12/02 12/07 12/23
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