Length of 'Freeze Free' Season Probabilities


ALTON, UTAH (420086)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 42 68 73 79 85 88 94 97 105 109 121
32.5 64 83 92 103 109 112 116 119 127 133 151
28.5 102 115 123 127 133 139 141 147 154 159 178
24.5 111 143 150 161 164 169 173 178 188 193 222
20.5 147 167 180 184 191 193 201 204 212 221 252
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