Length of 'Freeze Free' Season Probabilities


COTTAGE GROVE 1 NNE, (351897)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 32 56 75 92 97 108 117 128 146 154 180
32.5 82 119 129 142 151 155 169 176 188 198 227
28.5 103 171 200 210 222 235 247 255 265 291 ***
24.5 143 249 267 286 300 315 332 *** *** *** ***
20.5 239 286 325 *** *** *** *** *** *** *** ***
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