Length of 'Freeze Free' Season Probabilities


PROSSER st, (456768)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 92 106 116 118 123 126 132 137 142 159 206
32.5 114 134 142 149 152 156 163 170 184 196 243
28.5 147 169 176 185 191 198 202 207 221 238 256
24.5 171 195 202 212 222 230 240 250 255 278 ***
20.5 210 235 247 252 266 279 289 298 304 317 ***
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