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


COVE 1 E s, r (351926)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/15 05/21 05/28 05/31 06/02 06/05 06/12 06/18 06/25 07/03 07/28
32.5 04/21 05/03 05/10 05/14 05/18 05/25 05/27 05/30 06/01 06/10 07/07
28.5 03/31 04/06 04/16 04/20 04/28 04/30 05/02 05/05 05/09 05/16 06/04
24.5 02/18 03/16 03/25 03/26 04/01 04/03 04/06 04/09 04/14 04/25 05/09
20.5 01/06 02/26 03/05 03/10 03/18 03/24 03/27 04/01 04/04 04/08 04/22
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