Fall 'Freeze' Probabilities (Jul. 31 - Dec. 31)
WILLIAMS 1 NW, te (359390)
| Temp F |
Earliest |
10% |
20% |
30% |
40% |
50% |
60% |
70% |
80% |
90% |
Latest |
| 36.5
| 08/26
| 07/31
| 08/27
| 08/05
| 09/05
| 09/08
| 09/09
| 08/24
| 09/13
| 09/08
| 09/18
|
| 32.5
| 09/13
| 08/01
| 09/18
| 08/23
| 09/24
| 09/28
| 09/29
| 09/09
| 10/02
| 09/19
| 10/04
|
| 28.5
| 10/02
| 08/24
| 10/04
| 09/11
| 10/14
| 10/17
| 10/20
| 09/24
| 11/01
| 10/10
| 11/14
|
| 24.5
| 10/14
| 09/08
| 10/15
| 09/23
| 11/03
| 11/04
| 11/05
| 10/18
| 11/09
| 10/27
| 11/16
|
| 20.5
| 11/04
| 09/17
| 11/10
| 10/10
| 11/20
| 11/27
| 12/17
| 11/01
| **/**
| 11/20
| **/**
|
Graphic Output
Earliest - Earliest 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 July 31 to
Dec. 31 period or insufficient data to determine a date.
07/31 means the minimum temperature can go below the threshold
temperature any day during the July 31 to Dec. 31 period.
xx% - Percent probability that a minimum temperature below the threshold will
occur on or before 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 been a year when the minimum temperature didn't
go below the threshold temperature during the July 31 to Dec. 31
period or insufficient data to determine a date.
Western Regional Climate Center, wrcc@dri.edu