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


RIVERDALE, UTAH (427318)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 04/24 05/02 05/12 05/14 05/19 05/21 05/26 05/30 06/05 06/11 06/21
32.5 04/12 04/24 04/30 05/01 05/03 05/11 05/13 05/16 05/19 05/21 06/03
28.5 03/14 04/02 04/08 04/11 04/16 04/22 04/26 04/30 05/02 05/08 06/02
24.5 02/12 03/12 03/17 03/24 03/28 04/03 04/06 04/09 04/12 04/25 05/06
20.5 01/26 02/25 03/06 03/13 03/15 03/20 03/23 03/28 03/30 04/05 05/06
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