Length of 'Freeze Free' Season Probabilities
PORTHILL, IDAHO (107264)
Temp F |
Shortest |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Longest |
36.5
| 45
| 77
| 84
| 92
| 99
| 102
| 105
| 110
| 116
| 129
| 135
|
32.5
| 92
| 109
| 115
| 117
| 126
| 132
| 138
| 141
| 148
| 150
| 163
|
28.5
| 121
| 135
| 138
| 147
| 152
| 158
| 163
| 167
| 172
| 187
| 234
|
24.5
| 150
| 178
| 182
| 192
| 195
| 200
| 202
| 209
| 215
| 231
| 294
|
20.5
| 178
| 208
| 218
| 229
| 235
| 240
| 244
| 251
| 259
| 274
| 295
|
Graphic Output
Shortest - Least number of consecutive days recorded with minimum temperature
above threshold.
*** means minimum temperature below threshold has not occurred.
xx% - Percent probability that a consecutive number of days will occur with
the minimum temperature not below the threshold.
*** means non-occurrence of the threshold
Longest - Greatest number of consecutive days recorded with minimum temperature
above threshold.
*** means that at least one year occurred when minimum temperature
below threshold was not recorded.
Note: All periods include August 1.
Western Regional Climate Center, wrcc@dri.edu