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


VANCOUVER INTERSTATE BRG, (458778)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/23 04/16 12/65 04/26 05/01 05/04 05/09 05/11 05/21 05/26 06/23
32.5 01/27 03/15 12/65 04/01 04/07 04/11 04/15 04/21 04/24 04/30 05/25
28.5 **/** 01/26 12/65 02/21 03/01 03/12 03/18 03/24 04/02 04/12 05/12
24.5 **/** **/** 12/65 01/21 02/03 02/10 02/14 02/21 03/02 03/07 04/01
20.5 **/** **/** 12/65 **/** 01/06 01/18 01/29 02/02 02/12 02/25 03/17
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