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


FT KLAMATH 7 SW, ta (353022)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 07/08 04/21 07/12 05/02 07/27 07/29 07/29 05/23 07/30 06/13 07/30
32.5 06/27 03/19 07/01 03/22 07/08 07/17 07/21 04/23 07/28 05/01 07/30
28.5 05/14 **/** 05/30 01/11 06/20 06/21 06/27 02/23 07/14 03/06 07/28
24.5 04/17 **/** 04/24 **/** 04/28 05/13 05/26 **/** 05/31 01/31 06/20
20.5 03/26 **/** 04/09 **/** 04/22 04/24 04/24 **/** 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