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


GRASMERE s, d (103809)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/03 08/13 08/16 08/19 08/21 08/23 08/28 09/01 09/07 09/14 10/06
32.5 08/03 08/21 08/26 09/06 09/09 09/14 09/16 09/18 09/20 10/03 10/20
28.5 08/29 09/02 09/10 09/15 09/18 09/19 09/20 09/22 09/30 10/06 10/24
24.5 09/09 09/17 09/20 09/22 09/22 09/27 10/01 10/08 10/09 10/16 10/24
20.5 09/19 09/22 09/28 10/07 10/08 10/12 10/15 10/17 10/22 10/26 10/27
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