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


DURANGO, COLORADO (052432)
Temp F Earliest 10% 20% 30% 40% 50% 60% 70% 80% 90% Latest
36.5 08/11 08/27 09/03 09/07 09/10 09/13 09/15 09/16 09/21 09/27 10/03
32.5 08/23 09/07 09/12 09/15 09/19 09/21 09/24 09/25 09/29 10/04 10/17
28.5 09/07 09/19 09/24 09/28 10/02 10/04 10/07 10/10 10/14 10/17 11/05
24.5 09/07 09/26 10/06 10/10 10/15 10/18 10/20 10/23 10/26 11/03 11/14
20.5 09/07 10/09 10/17 10/20 10/25 10/29 11/01 11/05 11/08 11/13 11/22
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