Nebraska frost dates: C
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Cairo | May 4 | Oct 3 | 152 d | 5b |
| Callaway | May 3 | Oct 6 | 156 d | 5b |
| Cambridge | May 3 | Oct 5 | 155 d | 5b |
| Campbell | Apr 30 | Oct 8 | 161 d | 6a |
| Carleton | Apr 24 | Oct 15 | 174 d | 6a |
| Carroll | Apr 29 | Oct 11 | 165 d | 5b |
| Cedar Bluffs | Apr 23 | Oct 15 | 175 d | 5b |
| Cedar Creek | Apr 17 | Oct 19 | 185 d | 5b |
| Cedar Rapids | May 1 | Oct 5 | 157 d | 5b |
| Center | Apr 30 | Oct 6 | 159 d | 5a |
| Central City | Apr 28 | Oct 10 | 165 d | 5b |
| Ceresco | Apr 22 | Oct 16 | 177 d | 5b |
| Chadron | May 15 | Sep 28 | 136 d | 5a |
| Chambers | May 1 | Oct 7 | 159 d | 5a |
| Champion | May 7 | Oct 5 | 151 d | 5b |
| Chapman | Apr 23 | Oct 15 | 175 d | 5b |
| Chappell | May 8 | Oct 5 | 150 d | 5b |
| Chester | Apr 24 | Oct 15 | 174 d | 6a |
| Clarks | Apr 28 | Oct 10 | 165 d | 5b |
| Clarkson | Apr 27 | Oct 10 | 166 d | 5b |
| Clatonia | Apr 23 | Oct 12 | 172 d | 6a |
| Clay Center | Apr 19 | Oct 20 | 184 d | 6a |
| Clearwater | Apr 29 | Oct 9 | 163 d | 5a |
| Cody | May 10 | Sep 29 | 142 d | 5a |
| Coleridge | Apr 30 | Oct 5 | 158 d | 5a |
| Colon | Apr 23 | Oct 15 | 175 d | 5b |
| Columbus | Apr 21 | Oct 15 | 177 d | 5b |
| Comstock | May 4 | Oct 4 | 153 d | 5b |
| Concord | May 2 | Oct 4 | 155 d | 5a |
| Cook | Apr 26 | Oct 10 | 167 d | 5b |
| Cordova | Apr 26 | Oct 13 | 170 d | 6a |
| Cortland | Apr 23 | Oct 12 | 172 d | 6a |
| Cozad | Apr 30 | Oct 9 | 162 d | 5b |
| Crab Orchard | Apr 22 | Oct 20 | 181 d | 6a |
| Craig | Apr 28 | Oct 10 | 165 d | 5b |
| Crawford | May 13 | Sep 30 | 140 d | 5a |
| Creighton | Apr 30 | Oct 6 | 159 d | 5a |
| Creston | Apr 30 | Oct 6 | 159 d | 5b |
| Crete | Apr 23 | Oct 12 | 172 d | 6a |
| Crofton | Apr 30 | Oct 8 | 161 d | 5a |
| Crookston | May 10 | Sep 29 | 142 d | 5a |
| Culbertson | May 2 | Oct 9 | 160 d | 5b |
| Curtis | May 1 | Oct 9 | 161 d | 5b |