Length of 'Freeze Free' Season Probabilities


SANTA ROSA, n (298107)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 122 144 148 155 158 165 172 177 180 193 211
32.5 129 167 174 179 184 190 196 199 204 210 232
28.5 167 189 197 200 207 211 214 220 223 235 247
24.5 173 205 214 221 223 232 236 240 244 255 295
20.5 205 232 237 242 251 256 260 266 275 285 317
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