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


ALTURAS st, (040161)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 06/16 06/26 06/30 07/02 07/07 07/11 07/15 07/19 07/25 07/29 07/30
32.5 05/13 05/29 06/07 06/11 06/15 06/20 06/27 06/30 07/03 07/12 07/28
28.5 04/13 05/03 05/09 05/14 05/18 05/22 05/25 06/01 06/09 06/22 07/18
24.5 04/01 04/20 04/25 04/30 05/03 05/07 05/10 05/13 05/17 05/26 06/25
20.5 03/12 03/31 04/05 04/10 04/17 04/21 04/26 04/29 05/06 05/12 05/20
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