Length of 'Freeze Free' Season Probabilities


LOST CREEK DAM, at (355055)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 63 85 98 100 108 114 121 130 139 143 162
32.5 111 117 132 141 144 150 156 158 164 181 194
28.5 156 161 172 185 196 198 201 207 221 226 262
24.5 191 226 239 242 251 265 266 274 286 307 ***
20.5 240 261 279 292 304 321 344 *** *** *** ***
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