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


YOSEMITE PARK HQ, st (049855)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/14 04/29 05/09 05/13 05/20 05/28 06/03 06/07 06/15 06/22 07/26
32.5 03/05 04/13 04/23 04/28 05/05 05/10 05/16 05/22 05/29 06/12 07/06
28.5 02/24 03/14 03/30 04/06 04/10 04/15 04/23 04/28 05/04 05/14 06/27
24.5 01/06 02/12 02/23 03/07 03/19 03/25 04/01 04/08 04/13 04/28 06/10
20.5 **/** **/** 01/21 01/31 02/12 02/19 03/02 03/11 03/22 04/06 06/08
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