Length of 'Freeze Free' Season Probabilities


YREKA stat, (049866)
Temp F Shortest 90% 80% 70% 60% 50% 40% 30% 20% 10% Longest
36.5 58 81 92 97 105 109 111 116 121 129 160
32.5 83 113 119 126 132 136 144 151 156 162 187
28.5 110 144 158 163 168 174 179 183 190 201 239
24.5 148 180 200 205 211 221 226 233 245 258 318
20.5 162 225 236 253 263 276 290 298 320 *** ***
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