Length of 'Freeze Free' Season Probabilities
SEATTLE TCOMA WSCMO AP, WASHINGTON (457473)
Temp F |
Shortest |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Longest |
36.5
| 144
| 161
| 174
| 185
| 194
| 199
| 202
| 207
| 213
| 219
| 230
|
32.5
| 177
| 197
| 219
| 231
| 239
| 244
| 248
| 252
| 264
| 270
| 299
|
28.5
| 215
| 247
| 268
| 273
| 290
| 298
| 305
| 324
| ***
| ***
| ***
|
24.5
| 251
| 295
| 303
| 337
| ***
| ***
| ***
| ***
| ***
| ***
| ***
|
20.5
| 251
| 309
| ***
| ***
| ***
| ***
| ***
| ***
| ***
| ***
| ***
|
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