Length of 'Freeze Free' Season Probabilities


MERWIN DAM, w (450242)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 42 54 999 61 63 67 69 76 91 104 113
32.5 69 73 999 105 115 122 125 134 136 147 156
28.5 112 130 999 144 149 158 165 169 172 181 195
24.5 161 178 999 196 199 201 207 224 231 243 263
20.5 212 226 999 259 262 265 270 289 294 300 316
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