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


GRAPEVIEW 3 SW, WASHINGTON (453284)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/13 04/22 04/29 05/01 05/04 05/06 05/08 05/11 05/13 05/25 06/12
32.5 03/13 03/21 03/29 04/06 04/11 04/17 04/21 04/25 04/28 05/02 05/12
28.5 **/** 01/07 01/21 02/02 02/10 02/16 02/25 03/03 03/11 03/19 04/14
24.5 **/** **/** **/** **/** 01/05 01/20 01/30 02/02 02/06 02/19 03/05
20.5 **/** **/** **/** **/** **/** **/** 01/05 01/19 01/30 02/14 03/03
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