Length of 'Freeze Free' Season Probabilities


PLACERVILLE, CALIFORNIA (046960)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 117 133 140 150 160 167 169 177 183 206 255
32.5 143 174 180 183 189 200 208 218 228 245 284
28.5 188 219 225 231 244 249 261 266 286 339 ***
24.5 241 274 299 306 322 334 355 *** *** *** ***
20.5 302 *** *** *** *** *** *** *** *** *** ***
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