Length of 'Freeze Free' Season Probabilities


ROSEBURG RGNL AP, st (357326)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 88 123 142 149 161 166 175 184 193 201 215
32.5 126 182 193 197 203 210 215 233 240 261 ***
28.5 176 214 249 260 270 278 294 318 *** *** ***
24.5 238 275 304 322 *** *** *** *** *** *** ***
20.5 238 *** *** *** *** *** *** *** *** *** ***
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