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


WINCHESTER 1 SE, ta (109840)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/20 06/14 06/21 06/25 06/29 06/30 07/03 07/07 07/10 07/24 07/29
32.5 04/27 05/14 05/16 05/23 05/27 06/02 06/04 06/06 06/13 06/18 07/06
28.5 04/04 04/22 04/27 04/29 05/03 05/06 05/10 05/13 05/21 05/31 06/04
24.5 03/20 03/27 03/31 04/03 04/07 04/11 04/14 04/18 04/24 05/01 05/13
20.5 02/21 03/07 03/17 03/20 03/26 03/29 04/03 04/07 04/13 04/18 05/01
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