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


EL CAJON 2 E, e: (042705)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 02/02 02/26 03/13 03/17 03/27 04/02 04/06 04/14 04/19 04/24 06/11
32.5 **/** 01/24 02/02 02/11 02/19 03/05 03/12 03/16 03/23 03/29 06/11
28.5 **/** **/** **/** 01/09 01/17 01/23 01/27 02/07 02/16 02/27 03/18
24.5 **/** **/** **/** **/** **/** **/** **/** **/** 01/11 02/01 02/22
20.5 **/** **/** **/** **/** **/** **/** **/** **/** **/** **/** 01/08
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