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


HAPPY CAMP RS, te (043761)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/24 05/11 05/15 05/18 05/21 05/23 05/28 06/03 06/10 06/21 07/03
32.5 03/06 04/12 04/22 04/25 04/29 05/01 05/07 05/11 05/16 05/26 06/22
28.5 01/23 02/12 03/05 03/12 03/18 03/26 04/02 04/11 04/17 04/27 05/30
24.5 **/** **/** 01/19 01/31 02/06 02/12 02/20 03/02 03/06 03/18 04/04
20.5 **/** **/** **/** **/** **/** 01/03 01/07 01/18 01/31 02/03 03/01
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