Length of 'Freeze Free' Season Probabilities


VANCOUVER INTERSTATE BRG, (458778)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 78 123 999 143 152 157 166 173 181 192 238
32.5 140 165 999 184 197 205 213 221 231 250 285
28.5 149 205 999 238 248 258 267 279 299 317 ***
24.5 216 259 999 290 301 314 337 *** *** *** ***
20.5 252 294 999 *** *** *** *** *** *** *** ***
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