Length of 'Freeze Free' Season Probabilities


VOLTAGE 2 NW SOD HOUSE, OREGON (358924)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 22 45 36 74 42 51 59 95 71 128 85
32.5 74 115 81 133 84 87 89 152 101 169 120
28.5 125 155 134 185 140 143 146 207 153 226 155
24.5 145 212 145 240 150 165 179 273 185 295 191
20.5 169 250 182 293 190 201 213 *** 230 *** 242
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