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


MOLALLA st, (355677)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/20 04/28 05/05 05/10 05/14 05/21 05/25 05/27 05/30 06/04 06/13
32.5 04/04 04/06 04/08 04/10 04/14 04/20 04/25 04/29 04/30 05/08 05/25
28.5 01/27 02/24 03/11 03/19 03/21 03/24 03/30 04/05 04/07 04/17 05/01
24.5 01/06 01/08 01/20 01/30 02/04 02/18 02/27 03/01 03/05 03/17 03/29
20.5 **/** **/** **/** 01/04 01/10 01/28 01/30 02/05 02/26 03/02 03/19
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