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


RICHLAND s, a (457015)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/29 04/13 04/17 04/20 04/23 04/26 04/30 05/02 05/06 05/09 05/19
32.5 03/15 03/27 03/31 04/03 04/06 04/09 04/13 04/17 04/22 04/28 05/01
28.5 02/06 03/01 03/10 03/14 03/16 03/22 03/26 04/03 04/07 04/12 04/30
24.5 01/03 02/02 02/16 02/22 02/25 03/01 03/04 03/10 03/12 03/22 04/03
20.5 **/** 01/08 01/23 02/01 02/08 02/15 02/21 02/28 03/04 03/12 03/29
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