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


WESTON 5 ESE, e: (359219)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/03 05/02 12/65 05/17 05/20 05/26 05/31 06/05 06/13 06/17 06/24
32.5 03/11 04/06 12/65 04/22 04/27 05/03 05/07 05/15 05/23 05/29 06/16
28.5 02/04 03/14 12/65 03/30 04/03 04/08 04/14 04/25 04/29 05/11 05/25
24.5 **/** 02/17 12/65 03/02 03/08 03/19 03/25 04/01 04/03 04/14 05/16
20.5 **/** 01/24 12/65 02/15 02/20 02/28 03/03 03/12 03/26 04/02 05/16
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