Length of 'Freeze Free' Season Probabilities


ARROWROCK DAM, te (100448)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 76 100 113 120 128 130 131 134 136 150 183
32.5 99 133 140 147 150 155 161 165 177 186 194
28.5 147 159 170 176 184 190 197 203 210 216 237
24.5 180 203 211 219 225 230 237 244 251 265 288
20.5 216 233 244 250 261 265 270 275 282 290 310
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