Length of 'Freeze Free' Season Probabilities


UKIAH stat, (358726)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 1 1 2 2 4 6 8 10 13 19 32
32.5 1 2 7 13 19 22 31 37 41 49 72
28.5 1 20 38 50 56 62 72 80 92 103 120
24.5 66 91 99 107 111 118 121 127 131 142 161
20.5 111 122 134 147 149 158 163 170 176 193 220
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