Length of 'Freeze Free' Season Probabilities


SKAMANIA FISH HATCHERY, (457696)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 1 51 65 69 85 94 107 117 125 153 165
32.5 65 107 114 122 129 146 152 154 165 180 214
28.5 134 149 158 181 187 193 201 217 233 253 300
24.5 152 212 225 250 265 274 290 319 351 *** ***
20.5 221 257 292 312 336 *** *** *** *** *** ***
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