Length of 'Freeze Free' Season Probabilities


CORVALLIS STATE UNIV, (351862)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 71 118 124 132 138 144 149 155 159 172 196
32.5 120 150 159 168 176 185 194 200 210 231 296
28.5 153 200 220 234 245 253 266 274 292 304 ***
24.5 237 264 283 301 322 343 *** *** *** *** ***
20.5 284 312 *** *** *** *** *** *** *** *** ***
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