Length of 'Freeze Free' Season Probabilities


WILLIAMS 1 NW, te (359390)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 75 3 82 22 91 92 93 53 98 70 101
32.5 118 12 120 57 124 127 131 85 140 110 144
28.5 156 59 165 104 178 183 183 126 191 145 200
24.5 201 99 210 140 219 220 227 174 241 194 249
20.5 234 143 234 169 *** *** *** 208 *** 232 ***
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