Length of 'Freeze Free' Season Probabilities


DURKEE 3 NNW, e: (352482)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 31 49 62 63 71 74 80 86 88 100 111
32.5 65 70 85 98 108 117 120 125 132 140 168
28.5 107 119 122 129 138 140 148 151 152 156 182
24.5 126 143 149 153 157 162 165 170 177 191 191
20.5 155 162 174 178 184 195 199 202 205 210 222
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