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


MARIETTA 3 NNW, at (455028)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/20 05/02 05/07 05/14 05/19 05/24 05/28 05/31 06/02 06/10 07/28
32.5 03/29 04/05 04/11 04/20 04/22 04/26 05/01 05/04 05/08 05/11 05/31
28.5 01/25 02/28 03/14 03/17 03/25 03/27 03/31 04/05 04/10 04/20 05/01
24.5 **/** 01/14 01/31 02/11 02/18 02/26 03/02 03/07 03/16 03/29 04/20
20.5 **/** **/** **/** **/** 01/21 01/25 02/03 02/09 02/14 02/27 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