Length of 'Freeze Free' Season Probabilities


OLD FAITHFUL, WYOMING (486845)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 1 1 3 3 4 5 8 14 14 15 35
32.5 4 9 13 16 17 18 31 41 44 56 68
28.5 29 33 40 47 50 59 65 75 81 88 106
24.5 53 62 80 87 95 102 107 110 113 130 132
20.5 77 98 113 117 121 129 131 136 146 158 168
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