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


UNITY stat, (358780)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 06/20 06/28 07/09 07/12 07/17 07/18 07/23 07/28 07/29 07/30 07/30
32.5 06/06 06/19 06/23 06/24 06/26 06/27 06/30 07/10 07/14 07/22 07/23
28.5 04/26 05/15 05/21 05/26 05/29 06/03 06/10 06/12 06/17 06/27 07/03
24.5 04/08 04/26 05/03 05/06 05/16 05/17 05/18 05/25 05/29 06/02 06/10
20.5 03/22 04/17 04/21 04/23 05/01 05/02 05/09 05/14 05/15 05/18 05/22
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