county: PERRY | location: PERRYVILLE WATR PLT | lat: 37.734 | long: -89.920 | elev: 502 ft.
Temp Probability of observing a temperature as cold, or colder, later in the spring or earlier in the fall than the indicated date.
10% 30% 50% 70% 90%
(°F) spring fall season
length*
spring fall season
length*
spring fall season
length*
spring fall season
length*
spring fall season
length*
36 5/16 9/21 178 5/6 9/30 165 4/30 10/4 156 4/24 10/10 147 4/15 10/19 134
32 5/5 9/30 200 4/27 10/7 187 4/20 10/14 177 4/14 10/21 167 4/3 10/30 153
28 4/24 10/7 224 4/14 10/19 210 4/7 10/26 200 3/31 11/1 191 3/23 11/11 176
24 4/12 10/15 249 4/2 10/28 234 3/26 11/5 223 3/20 11/14 212 3/11 11/28 197

*Season length: number of days between last spring and first fall temperature thresholds, i.e. 36, 32, 28 and 24°F.