Length of 'Freeze Free' Season Probabilities


CATHLAMET 9 NE, at (451207)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 41 59 999 101 108 113 123 127 134 140 165
32.5 82 109 999 138 140 144 150 155 164 172 183
28.5 139 161 999 178 193 201 209 214 218 226 243
24.5 207 240 999 264 266 270 282 290 326 *** ***
20.5 248 268 999 302 324 *** *** *** *** *** ***
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