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


WATERLOO s, r (359083)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/05 05/01 12/65 05/20 05/23 05/27 05/29 05/31 06/02 06/13 06/30
32.5 03/25 03/30 12/65 04/20 04/29 05/05 05/10 05/12 05/23 05/27 05/30
28.5 02/24 03/11 12/65 03/28 04/03 04/05 04/11 04/21 04/26 05/08 05/23
24.5 **/** 02/05 12/65 02/20 03/03 03/11 03/18 03/25 04/01 04/16 05/23
20.5 **/** 01/17 12/65 02/06 02/16 02/21 02/25 03/03 03/14 03/27 05/05
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