Length of 'Freeze Free' Season Probabilities


RUCH state, (357391)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 62 64 81 90 98 104 107 113 119 133 147
32.5 106 118 119 128 136 138 144 150 155 158 194
28.5 145 153 161 164 166 178 185 198 208 213 268
24.5 182 204 218 235 238 243 252 265 280 299 ***
20.5 234 262 272 292 311 327 338 *** *** *** ***
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