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


LONG BEACH EXP STN, WASHINGTON (454748)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/14 04/22 04/26 05/02 05/07 05/09 05/12 05/15 05/24 05/31 06/28
32.5 03/08 03/22 03/28 04/03 04/05 04/08 04/13 04/18 04/25 04/30 05/17
28.5 01/12 02/03 02/09 02/18 02/23 03/01 03/04 03/07 03/12 03/17 04/05
24.5 **/** **/** **/** 01/09 01/24 01/30 02/02 02/05 02/08 02/15 02/28
20.5 **/** **/** **/** **/** **/** **/** **/** 01/10 01/30 02/06 02/16
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