Length of 'Freeze Free' Season Probabilities


PROSSER st, (456763)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 64 108 115 119 124 128 131 138 144 154 161
32.5 83 136 142 152 153 156 162 169 176 181 209
28.5 142 171 176 184 189 198 201 207 212 216 226
24.5 172 198 203 212 215 225 230 240 250 259 291
20.5 202 223 236 247 259 266 271 281 300 316 ***
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