| City | Population | Last spring frost | First fall frost | Growing season | Zone |
|---|---|---|---|---|---|
| Indianapolis | 901,116 | Apr 20 | Oct 21 | 183 days | 6b |
| Fort Wayne | 275,203 | Apr 24 | Oct 21 | 178 days | 6a |
| Evansville | 116,176 | Mar 29 | Nov 10 | 225 days | 7a |
| Carmel | 105,634 | Apr 21 | Oct 21 | 183 days | 6a |
| Fishers | 104,812 | Apr 21 | Oct 21 | 183 days | 6a |
| South Bend | 103,201 | Apr 23 | Oct 23 | 181 days | 6a |
| Bloomington | 83,307 | Apr 15 | Oct 26 | 192 days | 6b |
| Noblesville | 76,111 | Apr 21 | Oct 21 | 183 days | 6a |
| Hammond | 75,712 | Apr 23 | Oct 20 | 179 days | 6a |
| Lafayette | 71,238 | Apr 26 | Oct 18 | 173 days | 6a |
| Greenwood | 69,349 | Apr 20 | Oct 21 | 183 days | 6a |
| Gary | 67,289 | Apr 22 | Oct 27 | 188 days | 6a |
| Westfield | 66,258 | Apr 21 | Oct 21 | 183 days | 6a |
| Muncie | 65,466 | Apr 16 | Oct 25 | 190 days | 6a |
| Kokomo | 59,999 | Apr 27 | Oct 18 | 174 days | 6a |
| Terre Haute | 58,764 | Apr 15 | Oct 19 | 187 days | 6a |
| Anderson | 56,153 | Apr 19 | Oct 23 | 186 days | 6a |
| Jeffersonville | 54,134 | Mar 31 | Nov 9 | 225 days | 7a |
| Elkhart | 54,092 | Apr 26 | Oct 21 | 175 days | 6a |
| Columbus | 52,655 | Apr 11 | Oct 25 | 195 days | 6b |
| Mishawaka | 51,226 | Apr 23 | Oct 23 | 181 days | 6a |
| Lawrence | 50,420 | Apr 18 | Oct 26 | 190 days | 6a |
| West Lafayette | 45,747 | Apr 26 | Oct 18 | 173 days | 6a |
| Portage | 38,634 | Apr 22 | Oct 27 | 188 days | 6a |
| Plainfield | 38,574 | Apr 12 | Oct 27 | 196 days | 6a |
| New Albany | 37,463 | Mar 31 | Nov 9 | 225 days | 7a |
| Merrillville | 37,407 | Apr 22 | Oct 25 | 185 days | 6a |
| Crown Point | 35,616 | Apr 29 | Oct 16 | 171 days | 5b |
| Richmond | 35,376 | Apr 24 | Oct 20 | 180 days | 6a |
| Valparaiso | 35,177 | Apr 22 | Oct 25 | 185 days | 6a |
| Goshen | 34,525 | Apr 26 | Oct 21 | 175 days | 6a |
| Brownsburg | 34,089 | Apr 12 | Oct 29 | 198 days | 6a |
| Zionsville | 33,624 | Apr 21 | Oct 20 | 180 days | 6a |
| Michigan City | 31,338 | Apr 19 | Oct 27 | 191 days | 6a |
| Schererville | 29,825 | Apr 23 | Oct 20 | 179 days | 6a |
| Hobart | 29,298 | Apr 22 | Oct 25 | 185 days | 6a |
| Marion | 28,234 | Apr 26 | Oct 20 | 175 days | 6a |
| Franklin | 26,743 | Apr 20 | Oct 19 | 180 days | 6b |
| Greenfield | 26,544 | Apr 19 | Oct 22 | 185 days | 6a |
| East Chicago | 25,610 | Apr 23 | Oct 20 | 179 days | 6a |
| Avon | 25,350 | Apr 12 | Oct 29 | 198 days | 6a |
| St. John | 24,841 | Apr 23 | Oct 20 | 179 days | 6a |
| Munster | 23,504 | Apr 23 | Oct 20 | 179 days | 6a |
| Highland | 23,409 | Apr 23 | Oct 20 | 179 days | 6a |
| La Porte | 22,600 | Apr 19 | Oct 27 | 191 days | 6a |
| Seymour | 22,450 | Apr 16 | Oct 21 | 187 days | 6b |
| Clarksville | 22,253 | Mar 31 | Nov 9 | 225 days | 7a |
| Shelbyville | 21,204 | Apr 17 | Oct 22 | 187 days | 6a |
| Logansport | 18,287 | Apr 20 | Oct 23 | 185 days | 6a |
| Lebanon | 17,913 | Apr 21 | Oct 20 | 180 days | 6a |
| New Castle | 17,390 | Apr 27 | Oct 17 | 173 days | 6a |
| Jasper | 17,279 | Apr 10 | Nov 1 | 204 days | 6b |
| Huntington | 17,167 | May 1 | Oct 14 | 166 days | 6a |
| Frankfort | 16,837 | Apr 21 | Oct 21 | 181 days | 6a |
| Cedar Lake | 16,789 | Apr 29 | Oct 16 | 171 days | 5b |
| Crawfordsville | 16,699 | Apr 27 | Oct 12 | 167 days | 5b |
| Vincennes | 16,378 | Apr 11 | Oct 26 | 197 days | 6b |
| New Haven | 16,337 | Apr 27 | Oct 19 | 174 days | 6a |
| Dyer | 16,273 | Apr 23 | Oct 20 | 179 days | 6a |
| Griffith | 16,137 | Apr 23 | Oct 20 | 179 days | 6a |
| Warsaw | 16,130 | Apr 28 | Oct 18 | 170 days | 6a |
| Whitestown | 15,767 | Apr 21 | Oct 20 | 180 days | 6a |
| Beech Grove | 14,671 | Apr 20 | Oct 21 | 183 days | 6b |
| Chesterton | 14,635 | Apr 22 | Oct 27 | 188 days | 6a |
| Speedway | 14,373 | Apr 12 | Oct 29 | 198 days | 6b |
| Auburn | 14,068 | May 2 | Oct 10 | 159 days | 6a |
| Bedford | 13,962 | Apr 20 | Oct 20 | 181 days | 6b |
| Danville | 13,415 | Apr 12 | Oct 29 | 198 days | 6a |
| Connersville | 13,406 | Apr 27 | Oct 9 | 164 days | 6a |
| McCordsville | 13,094 | Apr 18 | Oct 26 | 190 days | 6a |
| Washington | 12,991 | Apr 10 | Oct 25 | 197 days | 6b |
| Lake Station | 12,977 | Apr 22 | Oct 27 | 188 days | 6a |
| Greensburg | 12,315 | Apr 15 | Oct 26 | 194 days | 6b |
| Madison | 12,304 | Apr 11 | Oct 31 | 201 days | 6b |
| Martinsville | 12,141 | Apr 24 | Oct 15 | 173 days | 6a |
| Yorktown | 11,947 | Apr 16 | Oct 25 | 190 days | 6a |
| Bargersville | 11,862 | Apr 20 | Oct 19 | 180 days | 6a |
| Lowell | 11,853 | Apr 29 | Oct 16 | 171 days | 5b |
| Huntertown | 11,600 | May 2 | Oct 10 | 159 days | 6a |
| Plymouth | 11,081 | Apr 25 | Oct 21 | 178 days | 6a |
| Peru | 10,962 | Apr 23 | Oct 21 | 181 days | 6a |
| Bluffton | 10,583 | Apr 24 | Oct 20 | 179 days | 6a |
| Kendallville | 10,371 | Apr 29 | Oct 17 | 171 days | 6a |
| Sellersburg | 10,305 | Mar 31 | Nov 9 | 225 days | 7a |
| Columbia City | 10,256 | Apr 27 | Oct 17 | 171 days | 6a |
| Wabash | 10,190 | Apr 23 | Oct 21 | 181 days | 6a |
| Mooresville | 10,173 | Apr 12 | Oct 27 | 196 days | 6a |
| Decatur | 10,090 | Apr 23 | Oct 19 | 178 days | 6a |
| Greencastle | 9,924 | Apr 27 | Oct 15 | 169 days | 6a |
| Angola | 9,366 | Apr 30 | Oct 16 | 167 days | 6a |
| Winfield | 9,140 | Apr 29 | Oct 16 | 171 days | 5b |
| Charlestown | 8,802 | Mar 31 | Nov 9 | 225 days | 7a |
| Elwood | 8,525 | Apr 24 | Oct 18 | 175 days | 6a |
| Princeton | 8,524 | Apr 13 | Oct 25 | 194 days | 6b |
| Brazil | 8,343 | Apr 14 | Oct 24 | 192 days | 6a |
| Cumberland | 8,066 | Apr 20 | Oct 21 | 183 days | 6a |
| Scottsburg | 7,478 | Apr 18 | Oct 20 | 185 days | 6b |
| Tell City | 7,441 | Apr 5 | Nov 1 | 208 days | 7a |
| Batesville | 7,401 | Apr 30 | Oct 16 | 168 days | 6b |
| Nappanee | 6,885 | Apr 26 | Oct 21 | 175 days | 6a |
| Ellettsville | 6,840 | Apr 15 | Oct 26 | 192 days | 6b |
| Garrett | 6,694 | Apr 29 | Oct 17 | 171 days | 6a |
| Boonville | 6,689 | Apr 12 | Oct 25 | 196 days | 7a |
| North Vernon | 6,559 | Apr 21 | Oct 21 | 180 days | 6b |
| Huntingburg | 6,522 | Apr 6 | Oct 30 | 206 days | 6b |
| Salem | 6,427 | Apr 17 | Oct 22 | 186 days | 6b |
| Mount Vernon | 6,289 | Apr 7 | Oct 28 | 202 days | 7a |
| Portland | 6,237 | Apr 28 | Oct 15 | 171 days | 6a |
| Rushville | 6,171 | Apr 19 | Oct 23 | 185 days | 6a |
| Rochester | 6,132 | Apr 23 | Oct 21 | 180 days | 6a |
| Gas City | 6,081 | Apr 26 | Oct 20 | 175 days | 6a |
| New Whiteland | 5,937 | Apr 20 | Oct 19 | 180 days | 6a |
| Pendleton | 5,930 | Apr 19 | Oct 23 | 186 days | 6a |
| Hartford City | 5,898 | Apr 22 | Oct 22 | 181 days | 6a |
| Whiteland | 5,884 | Apr 20 | Oct 19 | 180 days | 6a |
| Sheridan | 5,746 | Apr 23 | Oct 17 | 174 days | 6a |
| Rensselaer | 5,681 | Apr 23 | Oct 18 | 177 days | 6a |
| Monticello | 5,595 | Apr 22 | Oct 17 | 179 days | 6a |
| Cicero | 5,581 | Apr 23 | Oct 17 | 174 days | 6a |
| Westville | 5,387 | Apr 29 | Oct 13 | 166 days | 6a |
| Tipton | 5,263 | Apr 23 | Oct 17 | 174 days | 6a |
| Linton | 5,245 | Apr 14 | Oct 26 | 193 days | 6b |
| Lawrenceburg | 5,243 | Apr 13 | Oct 31 | 197 days | 6b |
| North Manchester | 5,230 | Apr 26 | Oct 19 | 174 days | 6a |
| Alexandria | 5,223 | Apr 24 | Oct 18 | 175 days | 6a |
| Porter | 5,167 | Apr 22 | Oct 27 | 188 days | 6a |
| Winona Lake | 5,126 | Apr 28 | Oct 18 | 170 days | 6a |