Length of 'Freeze Free' Season Probabilities


LEAVENWORTH 3 S, WASHINGTON (454572)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 54 62 88 100 106 111 113 122 126 133 145
32.5 98 120 129 133 136 139 144 146 151 159 188
28.5 123 140 151 160 164 168 173 182 185 196 222
24.5 171 182 191 200 202 206 214 219 223 241 272
20.5 210 218 234 237 241 250 257 262 275 284 308
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