Length of 'Freeze Free' Season Probabilities
SPIRIT LAKE RS, at (457919)
| Temp F |
Shortest |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Longest |
| 36.5
| 3
| 27
| 51
| 58
| 65
| 70
| 76
| 86
| 100
| 109
| 113
|
| 32.5
| 57
| 71
| 100
| 118
| 122
| 125
| 127
| 132
| 143
| 154
| 158
|
| 28.5
| 109
| 114
| 135
| 159
| 173
| 183
| 187
| 190
| 197
| 206
| 209
|
| 24.5
| 195
| 202
| 210
| 218
| 227
| 237
| 253
| 266
| 268
| ***
| ***
|
| 20.5
| 211
| 211
| 219
| 238
| 255
| 266
| 279
| 295
| ***
| ***
| ***
|
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