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


POWERS sta, (356820)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/11 04/24 05/05 05/10 05/14 05/18 05/25 05/30 06/03 06/12 07/30
32.5 03/01 03/19 04/04 04/06 04/14 04/19 04/22 04/28 05/02 05/13 06/10
28.5 **/** 01/31 02/05 02/12 02/20 02/28 03/10 03/16 03/24 04/01 05/01
24.5 **/** **/** **/** 01/02 01/15 01/18 01/31 02/03 02/14 02/27 03/20
20.5 **/** **/** **/** **/** **/** **/** **/** **/** 01/17 01/31 02/26
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