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


KALAMA 5 ENE, e: (454085)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/25 03/26 12/65 04/11 04/15 04/17 04/18 04/19 04/20 05/02 05/23
32.5 03/05 03/07 12/65 03/14 03/16 03/21 03/24 03/26 03/29 04/06 04/14
28.5 01/02 01/27 12/65 02/21 03/03 03/10 03/14 03/19 03/24 03/30 04/14
24.5 **/** **/** 12/65 **/** 01/08 01/21 02/01 02/06 02/29 03/18 04/14
20.5 **/** **/** 12/65 **/** **/** 01/03 01/24 02/01 02/08 03/01 03/04
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