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


KENNEWICK 10 SW, ta (454159)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/25 05/03 05/04 05/05 05/10 05/12 05/18 05/22 05/25 05/29 06/03
32.5 03/25 04/04 04/08 04/16 04/20 04/27 04/29 05/02 05/04 05/05 05/11
28.5 03/07 03/10 03/15 03/29 04/05 04/13 04/17 04/19 04/22 04/27 05/01
24.5 01/08 02/11 02/23 03/04 03/05 03/10 03/13 03/22 03/25 04/05 04/21
20.5 **/** 01/14 01/29 02/04 02/08 02/15 02/26 03/03 03/10 03/24 03/29
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