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


WINCHESTER 3 W F STN, (359464)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/06 04/05 05/11 04/18 05/16 05/22 05/28 05/02 06/02 05/12 06/09
32.5 04/09 03/10 04/14 03/24 04/16 04/20 04/23 04/13 04/30 04/27 05/12
28.5 02/06 **/** 02/11 01/31 03/10 03/16 03/20 02/28 04/01 03/12 05/03
24.5 **/** **/** **/** **/** 02/10 02/12 02/22 01/24 03/08 02/23 03/21
20.5 **/** **/** **/** **/** **/** **/** **/** **/** 02/13 02/16 02/25
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