Length of 'Freeze Free' Season Probabilities


O O RCH st, (356302)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 16 19 29 39 46 56 70 71 74 99 112
32.5 52 57 67 78 83 88 100 104 108 113 113
28.5 80 90 99 119 127 138 144 145 148 154 162
24.5 80 120 142 147 152 156 159 172 189 197 200
20.5 81 137 159 164 178 197 211 219 224 244 255
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