county: WORTH | location: GRANT CITY | lat: 40.486 | long: -94.414 | elev: 1130 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 5/17 9/17 5/6 9/24 5/1 9/28 4/26 10/3 4/20 10/12
32 5/6 9/24 4/29 10/1 4/24 10/8 4/18 10/14 4/11 10/22
28 4/28 10/2 4/20 10/12 4/14 10/19 4/9 10/25 4/2 11/2
24 4/20 10/13 4/12 10/23 4/6 10/30 4/1 11/4 3/23 11/13

* 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%
36 166 156 148 140 140
32 185 174 166 158 147
28 205 193 185 177 165
24 225 213 205 196 184