Illinois frost dates: E
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Eagarville | Apr 14 | Oct 21 | 190 d | 6b |
| Earlville | Apr 27 | Oct 15 | 171 d | 5b |
| East Alton | Apr 4 | Nov 5 | 215 d | 7a |
| East Carondelet | Apr 6 | Oct 27 | 204 d | 7a |
| East Dubuque | Apr 19 | Oct 21 | 185 d | 5a |
| East Galesburg | Apr 21 | Oct 20 | 182 d | 5b |
| East Lynn | Apr 22 | Oct 19 | 180 d | 6a |
| East Moline | Apr 16 | Oct 25 | 192 d | 5b |
| East Peoria | Apr 16 | Oct 23 | 190 d | 6a |
| East Saint Louis | Apr 8 | Oct 26 | 201 d | 7a |
| Easton | Apr 17 | Oct 19 | 185 d | 6a |
| Eddyville | Apr 14 | Oct 21 | 190 d | 7a |
| Edelstein | Apr 22 | Oct 14 | 175 d | 5b |
| Edgewood | Apr 10 | Oct 23 | 196 d | 6b |
| Edinburg | Apr 12 | Oct 20 | 191 d | 6a |
| Edwards | Apr 16 | Oct 23 | 190 d | 5b |
| Edwardsville | Apr 4 | Nov 5 | 215 d | 7a |
| Effingham | Apr 13 | Oct 24 | 194 d | 6b |
| El Paso | Apr 26 | Oct 17 | 174 d | 5b |
| Elburn | Apr 28 | Oct 13 | 168 d | 5b |
| Eldena | Apr 21 | Oct 19 | 181 d | 5b |
| Eldorado | Apr 7 | Oct 26 | 202 d | 7a |
| Eldred | Apr 13 | Oct 22 | 192 d | 6b |
| Eleroy | Apr 26 | Oct 13 | 170 d | 5a |
| Elgin | Apr 26 | Oct 18 | 175 d | 5b |
| Elizabeth | May 1 | Oct 9 | 161 d | 5a |
| Elizabethtown | Apr 19 | Oct 20 | 184 d | 7a |
| Elk Grove Village | Apr 16 | Oct 28 | 195 d | 6a |
| Elkhart | Apr 20 | Oct 16 | 179 d | 6a |
| Elkville | Apr 6 | Oct 22 | 199 d | 7a |
| Ellery | Apr 4 | Oct 28 | 207 d | 6b |
| Elliott | Apr 21 | Oct 17 | 179 d | 6a |
| Ellis Grove | Apr 8 | Oct 30 | 205 d | 7a |
| Ellisville | Apr 22 | Oct 19 | 180 d | 6a |
| Ellsworth | Apr 25 | Oct 16 | 174 d | 6a |
| Elmhurst | Apr 16 | Oct 28 | 195 d | 6a |
| Elmwood | Apr 22 | Oct 14 | 175 d | 5b |
| Elmwood Park | Apr 16 | Oct 28 | 195 d | 6a |
| Elsah | Apr 5 | Oct 27 | 205 d | 6b |
| Elvaston | Apr 10 | Oct 27 | 200 d | 6a |
| Elwin | Apr 14 | Oct 24 | 193 d | 6a |
| Elwood | Apr 19 | Oct 25 | 189 d | 6a |
| Emden | Apr 20 | Oct 16 | 179 d | 6a |
| Emington | Apr 27 | Oct 15 | 171 d | 5b |
| Emma | Apr 15 | Oct 19 | 187 d | 7a |
| Energy | Apr 9 | Oct 22 | 196 d | 7a |
| Enfield | Apr 15 | Oct 19 | 187 d | 6b |
| Eola | Apr 19 | Oct 23 | 187 d | 5b |
| Equality | Apr 7 | Oct 26 | 202 d | 7a |
| Erie | Apr 26 | Oct 13 | 170 d | 5b |
| Esmond | Apr 26 | Oct 13 | 170 d | 5b |
| Essex | Apr 27 | Oct 15 | 171 d | 5b |
| Eureka | Apr 21 | Oct 17 | 179 d | 5b |
| Evanston | Apr 26 | Oct 21 | 178 d | 6a |
| Evansville | Apr 8 | Oct 30 | 205 d | 7a |
| Evergreen Park | Apr 10 | Nov 1 | 205 d | 6a |
| Ewing | Apr 4 | Oct 28 | 207 d | 6b |