county: NODAWAY | location: CONCEPTION | lat: 40.239 | long: -94.683 | elev: 1108 ft.
Temp Freeze Dates (month/day)
Probability of later date in spring (through Jul 31) or earlier date in fall (beginning Aug 1) than indicated.*
10% 30% 50% 70% 90%
(°F) spring fall spring fall spring fall spring fall spring fall
36 5/6 9/23 4/29 10/1 4/24 10/8 4/18 10/14 4/10 10/23
32 4/26 10/1 4/20 10/12 4/14 10/19 4/9 10/25 4/2 11/2
28 4/19 10/12 4/11 10/23 4/6 10/31 4/1 11/5 3/22 11/15
24 4/12 10/24 4/4 11/3 3/30 11/10 3/22 11/16 3/12 11/26

* Probability of observing a temperature as cold or colder than the indicated threshold.

Temp (°F) Freeze Free Period
Probability of longer than indicated freeze free period (Days).
10% 30% 50% 70% 90%
36 186 174 166 157 146
32 207 195 186 178 165
28 227 214 206 197 184
24 248 234 225 216 203