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


PHILOMATH 2 SE, at (356614)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/16 04/19 12/65 04/29 05/03 05/06 05/10 05/14 05/13 05/27 05/28
32.5 03/21 03/25 12/65 04/06 04/11 04/14 04/18 04/26 04/30 05/09 05/02
28.5 02/22 02/20 12/65 03/12 03/27 04/04 04/06 04/06 04/19 04/18 04/21
24.5 02/03 01/29 12/65 02/17 02/20 02/22 02/23 03/11 02/27 04/01 03/13
20.5 **/** **/** 12/65 01/24 02/01 02/11 02/19 02/25 02/26 03/11 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