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


CHESTER, CALIFORNIA (041700)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 06/01 06/12 06/19 06/25 06/29 07/01 07/05 07/10 07/13 07/22 07/29
32.5 05/22 05/24 05/30 06/02 06/08 06/10 06/11 06/14 06/26 07/02 07/18
28.5 04/22 04/30 05/07 05/12 05/13 05/16 05/22 05/27 06/02 06/08 06/14
24.5 03/04 04/06 04/16 04/21 04/26 04/29 05/01 05/10 05/13 05/17 06/05
20.5 02/03 03/03 03/20 03/31 04/09 04/13 04/16 04/18 04/23 04/29 05/20
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