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


SATUS PASS, w (457340)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/19 04/27 12/65 05/16 05/22 05/28 06/05 06/14 06/18 06/21 07/10
32.5 03/25 04/02 12/65 04/16 04/20 04/25 04/29 05/02 05/07 05/19 06/29
28.5 **/** 02/17 12/65 03/03 03/12 03/18 03/23 03/27 04/01 04/17 04/28
24.5 **/** **/** 12/65 01/28 02/01 02/04 02/09 02/18 02/27 03/04 03/05
20.5 **/** **/** 12/65 **/** **/** 01/09 01/30 02/03 02/18 03/01 03/05
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