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


BROWNLEE DAM, e: (101180)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/11 04/07 04/11 04/18 04/22 04/26 05/01 05/04 05/07 05/12 05/25
32.5 02/21 03/03 03/20 03/28 04/03 04/09 04/11 04/14 04/20 04/24 05/05
28.5 02/05 02/18 03/02 03/05 03/08 03/13 03/18 03/23 03/28 04/02 04/24
24.5 01/13 02/01 02/05 02/09 02/14 02/19 02/22 02/29 03/07 03/12 04/01
20.5 **/** 01/06 01/13 01/28 02/01 02/05 02/10 02/12 02/22 03/02 03/28
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