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


OLA 4 S st, (106590)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/13 05/18 06/02 06/09 06/14 06/23 06/28 06/30 07/02 07/08 07/21
32.5 04/17 05/12 05/14 05/20 05/25 05/27 05/31 06/03 06/15 06/27 07/08
28.5 04/06 04/21 04/24 05/04 05/10 05/11 05/13 05/14 05/21 05/25 05/28
24.5 03/22 03/28 04/11 04/15 04/18 04/21 04/30 05/02 05/07 05/19 05/25
20.5 02/12 03/12 03/20 03/23 03/25 04/02 04/06 04/12 04/19 04/20 05/16
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