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


SPRAGUE RIVER 2 SE, (358007)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 07/01 07/03 07/08 07/13 07/17 07/19 07/24 07/26 07/28 07/29 07/30
32.5 06/09 06/21 06/29 07/02 07/06 07/10 07/13 07/15 07/21 07/24 07/28
28.5 05/12 05/27 06/06 06/11 06/17 06/21 06/30 07/02 07/11 07/17 07/20
24.5 05/03 05/12 05/21 05/22 05/28 05/29 06/04 06/14 06/22 07/04 07/19
20.5 04/06 04/15 04/22 04/23 05/03 05/09 05/19 05/25 05/29 06/09 06/22
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