Length of 'Freeze Free' Season Probabilities


IONE 18 S, OREGON (354161)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 84 132 999 152 166 169 176 188 201 221 264
32.5 126 170 999 197 203 226 236 253 271 284 ***
28.5 224 251 999 289 299 312 *** *** *** *** ***
24.5 267 307 999 *** *** *** *** *** *** *** ***
20.5 301 *** 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