Length of 'Freeze Free' Season Probabilities


VERNONIA s, r (358879)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 36 45 60 68 70 74 85 93 103 120 138
32.5 74 100 110 134 138 143 145 147 150 154 165
28.5 151 161 167 184 189 194 197 208 218 228 246
24.5 172 206 234 245 251 252 257 265 267 293 ***
20.5 266 274 287 304 *** *** *** *** *** *** ***
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