Frost Dates in Indiana
Across 117 NOAA weather stations in Indiana, the average last spring frost falls between March 29 at Evansville Museum and May 2 at Garrett 1 S. At a typical Indiana station it is around April 21, with the first fall frost around October 21 and a frost-free season of about 181 days.
Find the frost dates for your ZIP code
A typical Indiana season
What shapes frost dates in Indiana
- The frost-free season ranges from 159 days at Garrett 1 S to 225 days at Evansville Museum.
- Gardens in valleys and low spots, where cold air settles, often frost a week or more later in spring than the nearest station.
Frost dates at major airports
| Station | Last frost | Safer date | First frost | Season (days) |
|---|---|---|---|---|
| Bedford 5 WNW | Apr 10 | Apr 30 | Oct 30 | 201 |
| Bloomington Monroe Co Airport | Apr 17 | May 5 | Oct 22 | 185 |
| Evansville Regional Airport | Apr 4 | Apr 19 | Oct 29 | 206 |
| Ft Wayne Intl Airport | Apr 24 | May 10 | Oct 21 | 178 |
| Goshen Muni Airport | Apr 28 | May 13 | Oct 19 | 171 |
| Indianapolis | Apr 15 | May 2 | Oct 26 | 193 |
| Indianapolis Eagle Creek Airport | Apr 12 | Apr 29 | Oct 29 | 198 |
| Lafayette Purdue Univ Airport | Apr 26 | May 14 | Oct 18 | 173 |
| Muncie Delaware Co Airport | Apr 16 | May 2 | Oct 25 | 190 |
| Shelbyville Muni Airport | Apr 14 | Apr 29 | Oct 23 | 191 |
| South Bend Michiana Rgnl Airport | May 1 | May 17 | Oct 19 | 170 |
| Terre Haute Caa Airport | Apr 14 | May 2 | Oct 24 | 192 |
| Terre Haute Hulman Rgnl Airport | Apr 16 | May 3 | Oct 18 | 183 |
| Valparaiso Porter Co Muni Airport | Apr 20 | May 7 | Oct 26 | 187 |
All 117 weather stations in Indiana
| Station | Elevation (ft) | Last frost | Safer date | First frost | Season (days) |
|---|---|---|---|---|---|
| Anderson Sewage Plt | 841 | Apr 19 | May 5 | Oct 23 | 186 |
| Angola | 1,020 | Apr 30 | May 15 | Oct 16 | 167 |
| Attica 2E | 727 | Apr 22 | May 8 | Oct 17 | 176 |
| Bedford 5 WNW | 760 | Apr 10 | Apr 30 | Oct 30 | 201 |
| Berne Wwtp | 839 | Apr 23 | May 7 | Oct 22 | 181 |
| Bloomington Indiana Univ | 830 | Apr 15 | May 3 | Oct 26 | 192 |
| Bloomington Monroe Co Airport | 844 | Apr 17 | May 5 | Oct 22 | 185 |
| Bluffton 6N | 861 | Apr 24 | May 9 | Oct 20 | 179 |
| Boonville 1S | 400 | Apr 12 | Apr 28 | Oct 25 | 196 |
| Boswell 4WNW | 772 | Apr 25 | May 12 | Oct 13 | 169 |
| Brookville | 630 | Apr 20 | May 7 | Oct 21 | 182 |
| Cambridge City 3 N | 1,000 | Apr 27 | May 10 | Oct 9 | 164 |
| Cannelton | 402 | Apr 2 | Apr 20 | Nov 7 | 218 |
| Carmel 3 E | 752 | Apr 21 | May 8 | Oct 21 | 183 |
| Castleton 2 S | 824 | Apr 18 | May 6 | Oct 26 | 190 |
| Chalmers 5 W | 720 | Apr 25 | May 11 | Oct 17 | 173 |
| Columbia City | 834 | Apr 27 | May 14 | Oct 17 | 171 |
| Columbus | 609 | Apr 11 | Apr 30 | Oct 25 | 195 |
| Crane Nsa | 730 | Apr 9 | Apr 29 | Oct 31 | 202 |
| Crawfordsville 6 SE | 836 | Apr 27 | May 13 | Oct 12 | 167 |
| Decatur 1 N | 785 | Apr 23 | May 8 | Oct 19 | 178 |
| Delphi 2 N | 556 | Apr 22 | May 6 | Oct 17 | 179 |
| Dubois S In Forage Fm | 690 | Apr 25 | May 12 | Oct 15 | 172 |
| Elnora | 480 | Apr 9 | Apr 25 | Oct 25 | 197 |
| Elwood | 866 | Apr 24 | May 10 | Oct 18 | 175 |
| English | 510 | Apr 17 | May 4 | Oct 19 | 184 |
| Evansville Museum | 374 | Mar 29 | Apr 11 | Nov 10 | 225 |
| Evansville Regional Airport | 400 | Apr 4 | Apr 19 | Oct 29 | 206 |
| Farmersburg TV-2 | 548 | Apr 8 | Apr 24 | Oct 27 | 201 |
| Farmland 5 NNW | 965 | Apr 25 | May 11 | Oct 16 | 173 |
| Francesville | 680 | Apr 26 | May 12 | Oct 17 | 173 |
| Frankfort Disposal | 824 | Apr 21 | May 7 | Oct 21 | 181 |
| Franklin Wwtp | 720 | Apr 20 | May 7 | Oct 19 | 180 |
| Freelandville | 550 | Apr 9 | Apr 24 | Oct 30 | 202 |
| Ft Wayne Intl Airport | 791 | Apr 24 | May 10 | Oct 21 | 178 |
| Garrett | 880 | Apr 29 | May 11 | Oct 17 | 171 |
| Garrett 1 S | 870 | May 2 | May 16 | Oct 10 | 159 |
| Goshen 3SW | 875 | Apr 26 | May 12 | Oct 21 | 175 |
| Goshen Muni Airport | 827 | Apr 28 | May 13 | Oct 19 | 171 |
| Greencastle 1 W | 735 | Apr 27 | May 15 | Oct 15 | 169 |
| Greenfield | 869 | Apr 19 | May 7 | Oct 22 | 185 |
| Greensburg | 937 | Apr 15 | May 2 | Oct 26 | 194 |
| Hartford City 4 ESE | 924 | Apr 22 | May 7 | Oct 22 | 181 |
| Huntington | 725 | May 1 | May 16 | Oct 14 | 166 |
| Indiana Dunes Nl | 680 | Apr 22 | May 8 | Oct 27 | 188 |
| Indianapolis | 790 | Apr 15 | May 2 | Oct 26 | 193 |
| Indianapolis Eagle Creek Airport | 823 | Apr 12 | Apr 29 | Oct 29 | 198 |
| Indianapolis Nwfo | 790 | Apr 12 | Apr 28 | Oct 27 | 196 |
| Indianapolis SE Side | 845 | Apr 20 | May 5 | Oct 21 | 183 |
| Jamestown 2 E | 962 | Apr 23 | May 9 | Oct 19 | 178 |
| Jt Myers Locks & Dam | 340 | Apr 5 | Apr 21 | Oct 31 | 209 |
| Kentland | 695 | Apr 23 | May 8 | Oct 14 | 175 |
| Knox Wwtp | 690 | Apr 26 | May 12 | Oct 19 | 174 |
| Kokomo 3 WSW | 822 | Apr 27 | May 13 | Oct 18 | 174 |
| Lafayette 8 S | 732 | Apr 20 | May 6 | Oct 20 | 182 |
| Lafayette Purdue Univ Airport | 599 | Apr 26 | May 14 | Oct 18 | 173 |
| Lagrange | 900 | Apr 26 | May 14 | Oct 21 | 176 |
| Lakeville | 841 | May 1 | May 18 | Oct 13 | 163 |
| Laporte | 809 | Apr 19 | May 3 | Oct 27 | 191 |
| Logansport Cicott St | 600 | Apr 20 | May 6 | Oct 23 | 185 |
| Lowell | 665 | Apr 29 | May 14 | Oct 16 | 171 |
| Madison Sewage Plt | 460 | Apr 11 | Apr 28 | Oct 31 | 201 |
| Marion 2 N | 790 | Apr 26 | May 12 | Oct 20 | 175 |
| Martinsville 2 SW | 592 | Apr 24 | May 11 | Oct 15 | 173 |
| Milan 5 NE | 975 | Apr 30 | May 15 | Oct 16 | 168 |
| Mt Vernon | 357 | Apr 7 | Apr 27 | Oct 28 | 202 |
| Muncie Delaware Co Airport | 937 | Apr 16 | May 2 | Oct 25 | 190 |
| N Manchester Wwtp | 760 | Apr 26 | May 11 | Oct 19 | 174 |
| N Vernon 2 ESE | 743 | Apr 21 | May 10 | Oct 21 | 180 |
| New Castle 3 SW | 991 | Apr 27 | May 12 | Oct 17 | 173 |
| Newburgh L&d | 380 | Apr 3 | Apr 17 | Nov 2 | 214 |
| Northern Indiana Wfo | 951 | Apr 24 | May 10 | Oct 24 | 182 |
| Oolitic Purdue Ex Fm | 652 | Apr 20 | May 7 | Oct 20 | 181 |
| Paoli | 560 | Apr 21 | May 7 | Oct 18 | 178 |
| Patoka Lake | 561 | Apr 10 | Apr 26 | Nov 1 | 204 |
| Perrysville 4 WNW | 611 | Apr 23 | May 7 | Oct 14 | 171 |
| Petersburg 61 Brg | 472 | Apr 20 | May 4 | Oct 22 | 186 |
| Plymouth | 815 | Apr 25 | May 13 | Oct 21 | 178 |
| Portland 1 SW | 910 | Apr 28 | May 14 | Oct 15 | 171 |
| Princeton 1 W | 480 | Apr 13 | Apr 30 | Oct 25 | 194 |
| Rensselaer | 630 | Apr 23 | May 7 | Oct 18 | 177 |
| Richmond Wtr Wks | 1,005 | Apr 24 | May 10 | Oct 20 | 180 |
| Rochester | 760 | Apr 23 | May 9 | Oct 21 | 180 |
| Rockville | 689 | Apr 30 | May 15 | Oct 12 | 164 |
| Rushville | 948 | Apr 19 | May 5 | Oct 23 | 185 |
| S Bend | 710 | Apr 23 | May 9 | Oct 23 | 181 |
| Saint Meinrad | 510 | Apr 11 | Apr 30 | Oct 26 | 197 |
| Salem | 785 | Apr 17 | May 4 | Oct 22 | 186 |
| Scottsburg | 570 | Apr 18 | May 3 | Oct 20 | 185 |
| Seymour 2 N | 570 | Apr 16 | May 2 | Oct 21 | 187 |
| Shakamak Sp | 549 | Apr 14 | May 1 | Oct 26 | 193 |
| Shelbyville Muni Airport | 804 | Apr 14 | Apr 29 | Oct 23 | 191 |
| Shelbyville Sewage Plt | 752 | Apr 17 | May 3 | Oct 22 | 187 |
| Shoals 8 S | 477 | Apr 15 | May 2 | Oct 23 | 189 |
| South Bend Michiana Rgnl Airport | 773 | May 1 | May 17 | Oct 19 | 170 |
| Spencer | 549 | Apr 20 | May 7 | Oct 20 | 180 |
| Stendal | 635 | Apr 6 | Apr 23 | Oct 30 | 206 |
| Tell City | 390 | Apr 5 | Apr 23 | Nov 1 | 208 |
| Terre Haute Caa Airport | 575 | Apr 14 | May 2 | Oct 24 | 192 |
| Terre Haute Hulman Rgnl Airport | 575 | Apr 16 | May 3 | Oct 18 | 183 |
| Terre Haute Indiana State | 507 | Apr 15 | May 3 | Oct 19 | 187 |
| Tipton 5 SW | 890 | Apr 23 | May 9 | Oct 17 | 174 |
| Valparaiso Porter Co Muni Airport | 770 | Apr 20 | May 7 | Oct 26 | 187 |
| Valparaiso Wtr Wks | 800 | Apr 22 | May 6 | Oct 25 | 185 |
| Vevay | 495 | Apr 9 | Apr 25 | Nov 1 | 204 |
| Vincennes 5 NE | 452 | Apr 11 | Apr 27 | Oct 26 | 197 |
| W Lafayette 6 NW | 708 | Apr 26 | May 11 | Oct 12 | 169 |
| Wabash | 665 | Apr 23 | May 9 | Oct 21 | 181 |
| Wanatah 2 WNW | 735 | Apr 29 | May 14 | Oct 13 | 166 |
| Warsaw | 815 | Apr 28 | May 14 | Oct 18 | 170 |
| Washington 1 W | 482 | Apr 10 | Apr 27 | Oct 25 | 197 |
| Wheatfield | 665 | Apr 25 | May 11 | Oct 17 | 173 |
| Whitestown | 941 | Apr 21 | May 6 | Oct 20 | 180 |
| Winamac 2SSE | 690 | Apr 25 | May 11 | Oct 18 | 173 |
| Winchester Airport 3 E | 1,110 | Apr 20 | May 5 | Oct 21 | 183 |
| Woodburn 3N | 710 | Apr 27 | May 11 | Oct 19 | 174 |
| Young America | 773 | Apr 25 | May 11 | Oct 17 | 174 |
No station matches that name. Try a nearby town, or look up your ZIP code above.
Last frost and first frost are averages (a 50% chance of frost later in spring or earlier in fall). Safer date is the spring date with only a 10% chance of a later frost.
Using these dates
Plant hardy crops like peas and spinach several weeks before your last frost, and tender crops like tomatoes and peppers after it, once nights stay above 50°F. The Seed Starting Calculator turns your frost date into sowing and planting dates, and When to Plant Tomatoes explains the timing in detail.
Data: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 32°F threshold.
Frost dates in other states
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