Length of 'Freeze Free' Season Probabilities


MORGAN PWR & LIGHT, (425826)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 1 36 48 58 61 66 76 85 93 103 122
32.5 1 64 73 85 97 102 108 114 120 129 160
28.5 66 94 112 121 124 131 135 139 147 158 202
24.5 84 135 142 153 157 160 165 170 177 187 212
20.5 131 156 174 182 189 195 201 206 214 225 254
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