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


GRANITE 4 WSW, te (353430)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 07/15 07/19 07/24 07/25 07/26 07/28 07/29 07/30 07/30 07/30 07/30
32.5 06/29 07/02 07/06 07/18 07/20 07/22 07/25 07/28 07/29 07/30 07/30
28.5 04/27 05/14 05/29 06/06 06/12 06/18 06/26 06/29 07/09 07/24 07/27
24.5 04/22 04/26 04/30 05/05 05/12 05/21 05/23 05/24 05/28 06/05 06/27
20.5 03/27 04/13 04/16 04/19 04/22 04/27 04/29 05/01 05/08 05/15 05/23
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