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


MOUNT ADAMS RANGER STN, WASHINGTON (455659)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/28 06/02 06/12 06/21 06/24 07/02 07/03 07/07 07/11 07/19 07/28
32.5 04/19 05/12 05/19 05/22 05/27 06/01 06/05 06/15 06/28 07/03 07/07
28.5 04/17 04/21 04/25 05/02 05/06 05/10 05/13 05/15 05/23 05/27 06/03
24.5 03/13 03/20 03/25 03/29 03/30 04/04 04/06 04/18 04/27 05/09 05/25
20.5 01/28 02/14 02/23 03/03 03/06 03/08 03/14 03/25 03/29 04/10 05/01
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