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


SIMNASHO s, r (357835)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/04 04/11 12/65 04/21 04/24 04/25 04/28 05/03 05/13 05/22 05/22
32.5 03/16 03/17 12/65 03/29 04/07 04/15 04/22 04/24 04/27 04/30 05/01
28.5 01/05 01/06 12/65 02/07 02/26 03/03 03/05 03/09 03/16 03/25 03/29
24.5 **/** **/** 12/65 01/04 01/05 01/14 02/06 02/27 03/05 03/09 03/11
20.5 **/** **/** 12/65 **/** 01/05 01/13 01/26 02/09 02/23 03/03 03/06
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