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


COUGAR 6 E, w (451760)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/29 04/19 04/24 04/28 05/02 05/09 05/11 05/17 05/25 06/02 07/13
32.5 01/08 03/15 03/29 04/03 04/09 04/13 04/18 04/24 04/29 05/08 05/13
28.5 **/** 01/03 01/11 01/29 02/09 02/19 02/27 03/04 03/12 03/19 04/19
24.5 **/** **/** **/** **/** 01/11 01/17 01/31 02/04 02/11 03/01 03/11
20.5 **/** **/** **/** **/** **/** **/** 01/11 01/29 02/05 02/28 03/11
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