Length of 'Freeze Free' Season Probabilities


SPRAGUE RIVER 2 SE, (358007)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 2 3 9 11 13 16 23 34 40 44 58
32.5 13 16 21 28 36 40 45 51 56 58 62
28.5 15 28 55 58 64 74 86 93 100 113 124
24.5 31 69 93 97 108 117 121 122 136 144 160
20.5 78 113 125 137 141 145 148 150 155 177 187
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