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


PENDLETON BR EXP STN, (356540)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/27 05/14 05/24 05/31 06/04 06/08 06/11 06/20 06/26 07/03 07/27
32.5 04/18 04/25 05/02 05/08 05/12 05/13 05/20 05/25 05/30 06/04 06/28
28.5 03/06 03/26 04/12 04/15 04/21 04/30 05/05 05/07 05/11 05/17 06/01
24.5 01/29 02/23 03/08 03/15 03/26 04/02 04/05 04/09 04/16 04/26 05/23
20.5 **/** 01/14 02/01 02/07 02/14 02/29 03/05 03/13 03/25 04/02 04/19
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