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


ASTORIA st, (350324)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 03/12 03/27 04/03 04/08 04/15 04/18 04/23 04/26 04/29 05/07 06/23
32.5 **/** 02/12 02/19 02/28 03/12 03/20 03/26 03/31 04/06 04/26 06/22
28.5 **/** **/** 01/05 01/17 01/31 02/07 02/13 02/20 03/03 03/20 05/09
24.5 **/** **/** **/** **/** **/** 01/05 01/21 01/30 02/10 02/16 04/11
20.5 **/** **/** **/** **/** **/** **/** **/** 01/04 01/21 01/30 02/16
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