Indiana frost dates: C
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Cambridge City | Apr 27 | Oct 9 | 165 d | 6a |
| Camby | Apr 12 | Oct 27 | 198 d | 6a |
| Camden | Apr 22 | Oct 17 | 178 d | 6a |
| Campbellsburg | Apr 17 | Oct 22 | 188 d | 6b |
| Canaan | Apr 9 | Nov 1 | 206 d | 6b |
| Cannelburg | Apr 10 | Oct 25 | 198 d | 6b |
| Cannelton | Apr 5 | Nov 1 | 210 d | 7a |
| Carbon | Apr 27 | Oct 15 | 171 d | 6a |
| Carlisle | Apr 9 | Oct 30 | 204 d | 6b |
| Carmel | Apr 21 | Oct 21 | 183 d | 6a |
| Carthage | Apr 19 | Oct 22 | 186 d | 6a |
| Cayuga | Apr 23 | Oct 14 | 174 d | 6a |
| Cedar Grove | Apr 20 | Oct 21 | 184 d | 6b |
| Cedar Lake | Apr 29 | Oct 16 | 170 d | 5b |
| Celestine | Apr 10 | Nov 1 | 205 d | 6b |
| Centerpoint | Apr 14 | Oct 24 | 193 d | 6a |
| Centerville | Apr 24 | Oct 20 | 179 d | 6a |
| Central | Apr 19 | Oct 24 | 188 d | 7a |
| Chalmers | Apr 25 | Oct 17 | 175 d | 6a |
| Chandler | Apr 12 | Oct 25 | 196 d | 7a |
| Charlestown | Mar 31 | Nov 9 | 223 d | 7a |
| Charlottesville | Apr 19 | Oct 22 | 186 d | 6a |
| Chesterton | Apr 22 | Oct 27 | 188 d | 6a |
| Chrisney | Apr 12 | Oct 25 | 196 d | 7a |
| Churubusco | Apr 27 | Oct 17 | 173 d | 6a |
| Cicero | Apr 23 | Oct 17 | 177 d | 6a |
| Clarks Hill | Apr 20 | Oct 20 | 183 d | 6a |
| Clarksburg | Apr 15 | Oct 26 | 194 d | 6a |
| Clarksville | Mar 31 | Nov 9 | 223 d | 7a |
| Clay City | Apr 14 | Oct 26 | 195 d | 6a |
| Claypool | Apr 26 | Oct 19 | 176 d | 6a |
| Clayton | Apr 12 | Oct 27 | 198 d | 6a |
| Clear Creek | Apr 15 | Oct 26 | 194 d | 6b |
| Clifford | Apr 11 | Oct 25 | 197 d | 6b |
| Clinton | Apr 30 | Oct 12 | 165 d | 6a |
| Cloverdale | Apr 27 | Oct 15 | 171 d | 6a |
| Coal City | Apr 14 | Oct 26 | 195 d | 6a |
| Coalmont | Apr 14 | Oct 26 | 195 d | 6a |
| Coatesville | Apr 27 | Oct 15 | 171 d | 6a |
| Colfax | Apr 21 | Oct 21 | 183 d | 6a |
| Columbia City | Apr 27 | Oct 17 | 173 d | 6a |
| Columbus | Apr 11 | Oct 25 | 197 d | 6b |
| Commiskey | Apr 21 | Oct 21 | 183 d | 6b |
| Connersville | Apr 27 | Oct 9 | 165 d | 6a |
| Converse | Apr 26 | Oct 20 | 177 d | 6a |
| Cortland | Apr 16 | Oct 21 | 188 d | 6b |
| Corunna | Apr 29 | Oct 17 | 171 d | 6a |
| Cory | Apr 14 | Oct 24 | 193 d | 6a |
| Corydon | Mar 31 | Nov 9 | 223 d | 7a |
| Covington | Apr 23 | Oct 14 | 174 d | 6a |
| Craigville | Apr 24 | Oct 20 | 179 d | 6a |
| Crandall | Mar 31 | Nov 9 | 223 d | 6b |
| Crane | Apr 9 | Oct 31 | 205 d | 6b |
| Crawfordsville | Apr 27 | Oct 12 | 168 d | 5b |
| Cromwell | Apr 24 | Oct 24 | 183 d | 6a |
| Cross Plains | Apr 9 | Nov 1 | 206 d | 6b |
| Crothersville | Apr 18 | Oct 20 | 185 d | 6b |
| Crown Point | Apr 29 | Oct 16 | 170 d | 5b |
| Culver | Apr 25 | Oct 21 | 179 d | 6a |
| Cutler | Apr 25 | Oct 17 | 175 d | 6a |
| Cynthiana | Apr 13 | Oct 25 | 195 d | 7a |