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


GERBER DAM, o (353232)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 06/17 06/24 06/29 07/01 07/03 07/06 07/10 07/18 07/20 07/24 07/29
32.5 06/03 06/04 06/11 06/17 06/20 06/24 06/25 06/28 06/30 07/03 07/07
28.5 04/30 05/06 05/11 05/15 05/17 05/27 06/05 06/09 06/16 06/22 06/29
24.5 04/06 04/06 04/16 04/27 04/29 04/30 05/01 05/08 05/17 05/26 05/27
20.5 03/23 03/24 03/28 04/02 04/08 04/08 04/27 04/30 05/01 05/02 05/03
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