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


CATHLAMET 9 NE, at (451207)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/10 05/14 12/65 05/22 05/26 05/30 06/01 06/05 06/11 07/03 07/24
32.5 04/20 04/26 12/65 05/08 05/09 05/11 05/13 05/18 05/21 06/03 06/25
28.5 03/02 03/25 12/65 03/30 04/05 04/13 04/18 04/25 05/01 05/04 05/13
24.5 **/** 01/07 12/65 02/09 02/16 02/23 02/29 03/06 03/13 03/22 04/01
20.5 **/** **/** 12/65 01/17 01/27 02/03 02/11 02/17 02/23 03/02 03/13
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