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


EVERGREEN, COLORADO (052790)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/08 08/20 08/25 09/01 09/02 09/03 09/07 09/11 09/13 09/17 09/26
32.5 08/15 09/01 09/03 09/07 09/12 09/15 09/18 09/21 09/23 09/29 10/07
28.5 09/02 09/11 09/15 09/20 09/23 09/26 09/29 10/03 10/05 10/09 10/27
24.5 09/14 09/20 09/24 09/28 10/03 10/06 10/08 10/09 10/14 10/18 10/30
20.5 09/19 09/26 10/05 10/11 10/12 10/16 10/18 10/20 10/26 10/30 11/09
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