Length of 'Freeze Free' Season Probabilities


OAK KNOLL RS #2, ta (046329)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 153 169 999 194 196 201 208 213 223 234 244
32.5 193 212 999 227 238 240 248 262 271 293 306
28.5 216 250 999 284 297 301 306 336 *** *** ***
24.5 304 337 999 *** *** *** *** *** *** *** ***
20.5 *** *** 999 *** *** *** *** *** *** *** ***
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