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


LANDSBURG, WASHINGTON (454486)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/13 04/26 05/12 05/17 05/21 05/27 05/30 06/06 06/15 06/24 07/28
32.5 02/16 04/05 04/18 04/26 05/01 05/05 05/08 05/13 05/17 05/26 06/01
28.5 01/14 02/20 03/07 03/22 03/28 04/02 04/10 04/17 04/20 05/01 05/13
24.5 **/** **/** 01/16 02/04 02/11 02/20 02/27 03/03 03/11 03/27 05/12
20.5 **/** **/** **/** **/** 01/08 01/29 02/02 02/08 02/19 03/01 03/31
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