Length of 'Freeze Free' Season Probabilities


MC KENZIE BRG RS, st (355362)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 4 17 25 39 48 53 62 72 83 101 148
32.5 54 67 87 95 101 105 119 127 144 158 170
28.5 106 117 134 148 153 170 185 197 205 208 239
24.5 149 188 199 206 216 224 251 260 268 277 ***
20.5 229 251 261 268 274 305 317 325 *** *** ***
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