Length of 'Freeze Free' Season Probabilities


WHITE SWAN RS, te (459191)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 66 73 82 89 100 106 110 112 114 118 120
32.5 104 111 118 122 126 128 132 141 153 158 161
28.5 123 143 160 166 174 186 187 196 202 222 239
24.5 154 160 187 197 216 220 225 225 232 250 250
20.5 209 224 236 244 249 264 279 287 298 332 343
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