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


JACOB LAKE, a (024418)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/26 02/01 05/28 02/16 06/03 06/06 06/10 03/15 06/13 03/24 06/26
32.5 05/14 01/07 05/18 01/21 05/20 05/23 05/27 02/10 06/03 02/21 06/09
28.5 05/11 **/** 05/13 **/** 05/17 05/17 05/22 01/04 05/26 01/26 06/09
24.5 04/16 **/** 04/17 **/** 04/28 05/06 05/08 **/** 05/19 **/** 05/23
20.5 03/29 **/** 04/08 **/** 04/14 04/15 04/20 **/** 04/25 **/** 04/28
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