Length of 'Freeze Free' Season Probabilities
ST HELENS RFD, te (357466)
| Temp F |
Shortest |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Longest |
| 36.5
| 132
| 141
| 153
| 159
| 162
| 168
| 171
| 176
| 184
| 192
| 197
|
| 32.5
| 174
| 183
| 186
| 189
| 192
| 209
| 218
| 223
| 236
| 240
| 251
|
| 28.5
| 200
| 238
| 246
| 256
| 268
| 272
| 277
| 285
| 298
| 320
| 336
|
| 24.5
| 256
| 269
| 282
| 309
| 319
| 329
| 340
| ***
| ***
| ***
| ***
|
| 20.5
| 279
| 293
| 311
| ***
| ***
| ***
| ***
| ***
| ***
| ***
| ***
|
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