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


SAGINAW st, (357444)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/05 05/21 12/65 05/30 06/02 06/08 06/10 06/13 06/22 06/27 07/05
32.5 04/10 05/01 12/65 05/10 05/12 05/17 05/21 05/25 05/30 06/05 06/24
28.5 02/15 04/03 12/65 04/18 04/25 04/29 04/30 05/04 05/06 05/12 05/27
24.5 01/27 02/13 12/65 03/08 03/14 03/19 03/26 04/02 04/13 04/18 04/28
20.5 **/** **/** 12/65 01/15 01/25 02/03 02/05 02/14 02/26 03/11 04/18
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