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


ROSEBURG KQEN, te (357331)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/26 04/08 04/16 04/23 04/30 05/03 05/07 05/11 05/16 05/25 06/13
32.5 02/03 03/08 03/25 03/29 04/02 04/06 04/11 04/18 04/21 04/30 05/25
28.5 **/** **/** 01/20 02/01 02/04 02/24 03/02 03/10 03/17 04/03 04/20
24.5 **/** **/** **/** **/** **/** 01/10 01/22 02/01 02/10 02/19 03/03
20.5 **/** **/** **/** **/** **/** **/** **/** 01/09 01/26 02/10 02/26
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