Spring 'Freeze' Probabilities (Jan 1 - Jul 31)


COTTONWOOD 2 WSW, st (102159)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/09 05/19 05/24 05/29 05/30 05/31 06/02 06/06 06/13 06/17 06/22
32.5 04/19 04/29 05/04 05/06 05/09 05/09 05/12 05/18 05/23 05/29 06/07
28.5 03/25 04/06 04/14 04/17 04/23 04/26 04/30 05/02 05/05 05/07 05/19
24.5 03/06 03/15 03/25 03/28 04/01 04/06 04/10 04/14 04/21 04/29 05/18
20.5 01/18 02/08 02/26 03/03 03/04 03/11 03/16 03/20 03/26 04/14 04/25
Graphic Output
 Earliest - Earliest 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 Jan. 1 to July 31 
                  period or that there was insufficient data to determine a 
                  date.

xx% - Percent probability that a minimum temperature below the threshold will occur on or after 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 never been a year when the minimum temperature went below the threshold temperature during the Jan. 1 to July 31 period or insufficient data to determine a date. 07/30 means the minimum temperature can go below the threshold temperature any day during the Jan. 1 to July 31 period.

Western Regional Climate Center, wrcc@dri.edu