Length of 'Freeze Free' Season Probabilities


DIAMOND 4 WNW, te (352305)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 12 157 12 172 16 20 27 196 39 209 43
32.5 23 196 27 220 37 42 45 260 65 283 82
28.5 54 240 56 297 67 77 84 *** 92 *** 93
24.5 81 279 95 341 111 113 117 *** 135 *** 149
20.5 147 315 149 *** 152 154 163 *** 175 *** 179
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