Length of 'Freeze Free' Season Probabilities


CANYONLANDS-THE NEEDLE, (421168)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 101 112 123 128 131 138 145 154 157 167 186
32.5 111 130 142 147 157 161 164 169 175 194 238
28.5 153 160 166 170 180 185 193 200 210 221 261
24.5 164 176 189 206 211 218 221 230 236 245 295
20.5 182 210 222 231 244 246 256 262 273 284 299
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