Length of 'Freeze Free' Season Probabilities


FRIEND 1 W, o (353121)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 1 7 26 38 44 55 66 80 92 126 137
32.5 38 53 77 87 95 102 116 123 133 154 176
28.5 50 119 120 124 128 133 155 165 175 190 203
24.5 119 150 155 174 188 200 202 207 214 235 261
20.5 179 187 199 213 223 235 251 272 290 308 ***
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