Length of 'Freeze Free' Season Probabilities


HALFWAY st, (353604)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 4 33 48 53 55 64 67 70 81 92 126
32.5 25 64 77 86 90 95 104 107 114 125 196
28.5 92 113 122 129 133 134 139 143 150 162 217
24.5 122 134 140 144 150 156 160 168 175 191 282
20.5 137 159 171 178 188 197 202 208 223 230 ***
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