Length of 'Freeze Free' Season Probabilities
CORVALLIS WATER BUREAU, (351877)
| Temp F |
Shortest |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Longest |
| 36.5
| 88
| 123
| 130
| 135
| 142
| 145
| 152
| 159
| 165
| 170
| 183
|
| 32.5
| 134
| 157
| 163
| 169
| 182
| 194
| 196
| 204
| 212
| 217
| 238
|
| 28.5
| 157
| 228
| 235
| 246
| 254
| 273
| 278
| 290
| 299
| 317
| ***
|
| 24.5
| 191
| 280
| 294
| 304
| 316
| 327
| ***
| ***
| ***
| ***
| ***
|
| 20.5
| 291
| 311
| 333
| ***
| ***
| ***
| ***
| ***
| ***
| ***
| ***
|
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