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


DRAYTON st, (322312)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/08 05/09 05/09 05/16 05/14 05/16 05/19 05/26 05/25 06/08 05/26
32.5 05/02 04/25 05/08 05/07 05/12 05/13 05/14 05/16 05/17 05/22 05/26
28.5 04/17 04/21 04/21 04/29 05/02 05/05 05/05 05/14 05/11 05/20 05/13
24.5 03/25 04/06 04/10 04/15 04/12 04/16 04/21 04/30 04/27 05/08 04/28
20.5 03/19 03/27 03/31 04/06 04/07 04/09 04/10 04/17 04/13 04/29 04/25
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