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


FORT YUKON, ALASKA (503175)
Temp F Earliest 90% 80% 70% 60% 50% 40% 30% 20% 10% Latest
36.5 05/18 05/23 05/29 05/30 06/01 06/03 06/05 06/15 06/29 07/25 07/30
32.5 05/15 05/17 05/19 05/20 05/23 05/23 05/26 05/28 06/02 06/08 07/01
28.5 05/09 05/12 05/14 05/15 05/16 05/18 05/19 05/21 05/22 05/26 06/02
24.5 04/28 05/07 05/09 05/11 05/12 05/13 05/14 05/16 05/18 05/22 05/30
20.5 04/26 04/28 05/01 05/05 05/08 05/08 05/11 05/12 05/14 05/17 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