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Indiana frost dates by weather station

Indiana has 117 NOAA weather stations with 1991–2020 freeze statistics. Median last spring frost dates run from Mar 29 at Evansville Museum to May 2 at Garrett 1 S.

117Stations
Mar 29Earliest last frostEvansville Museum
May 2Latest last frostGarrett 1 S
225 daysLongest growing seasonEvansville Museum

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Indiana stations: median (50%) frost dates at 32°F
Station	Last spring frost	First fall frost	Growing season	Elevation
Anderson Sewage Plant	Apr 19	Oct 23	186 days	841 ft
Angola	Apr 30	Oct 16	167 days	1,020 ft
Attica 2e	Apr 22	Oct 17	176 days	727 ft
Bedford 5 WNW	Apr 10	Oct 30	201 days	760 ft
Berne Wastewater Plant	Apr 23	Oct 22	181 days	839 ft
Bloomington Indiana Univ	Apr 15	Oct 26	192 days	830 ft
Bloomington Monroe Co Airport	Apr 17	Oct 22	185 days	844 ft
Bluffton 6n	Apr 24	Oct 20	179 days	861 ft
Boonville 1s	Apr 12	Oct 25	196 days	400 ft
Boswell 4wnw	Apr 25	Oct 13	169 days	772 ft
Brookville	Apr 20	Oct 21	182 days	630 ft
Cambridge City 3 N	Apr 27	Oct 9	164 days	1,000 ft
Cannelton	Apr 2	Nov 7	218 days	402 ft
Carmel 3 E	Apr 21	Oct 21	183 days	752 ft
Castleton 2 S	Apr 18	Oct 26	190 days	824 ft
Chalmers 5 W	Apr 25	Oct 17	173 days	720 ft
Columbia City	Apr 27	Oct 17	171 days	834 ft
Columbus	Apr 11	Oct 25	195 days	609 ft
Crane Nsa	Apr 9	Oct 31	202 days	730 ft
Crawfordsville 6 SE	Apr 27	Oct 12	167 days	836 ft
Decatur 1 N	Apr 23	Oct 19	178 days	785 ft
Delphi 2 N	Apr 22	Oct 17	179 days	556 ft
Dubois S In Forage Fm	Apr 25	Oct 15	172 days	690 ft
Elnora	Apr 9	Oct 25	197 days	480 ft
Elwood	Apr 24	Oct 18	175 days	866 ft
English	Apr 17	Oct 19	184 days	510 ft
Evansville Museum	Mar 29	Nov 10	225 days	374 ft
Evansville Regional Airport	Apr 4	Oct 29	206 days	400 ft
Farmersburg Tv-2	Apr 8	Oct 27	201 days	548 ft
Farmland 5 NNW	Apr 25	Oct 16	173 days	965 ft
Fort Wayne Intl Airport	Apr 24	Oct 21	178 days	791 ft
Francesville	Apr 26	Oct 17	173 days	680 ft
Frankfort Disposal	Apr 21	Oct 21	181 days	824 ft
Franklin Wastewater Plant	Apr 20	Oct 19	180 days	720 ft
Freelandville	Apr 9	Oct 30	202 days	550 ft
Garrett	Apr 29	Oct 17	171 days	880 ft
Garrett 1 S	May 2	Oct 10	159 days	870 ft
Goshen 3sw	Apr 26	Oct 21	175 days	875 ft
Goshen Muni Airport	Apr 28	Oct 19	171 days	827 ft
Greencastle 1 W	Apr 27	Oct 15	169 days	735 ft
Greenfield	Apr 19	Oct 22	185 days	869 ft
Greensburg	Apr 15	Oct 26	194 days	937 ft
Hartford City 4 ESE	Apr 22	Oct 22	181 days	924 ft
Huntington	May 1	Oct 14	166 days	725 ft
Indiana Dunes Nl	Apr 22	Oct 27	188 days	680 ft
Indianapolis	Apr 15	Oct 26	193 days	790 ft
Indianapolis Eagle Creek Airport	Apr 12	Oct 29	198 days	823 ft
Indianapolis Nwfo	Apr 12	Oct 27	196 days	790 ft
Indianapolis SE Side	Apr 20	Oct 21	183 days	845 ft
Jamestown 2 E	Apr 23	Oct 19	178 days	962 ft
Jt Myers Locks & Dam	Apr 5	Oct 31	209 days	340 ft
Kentland	Apr 23	Oct 14	175 days	695 ft
Knox Wastewater Plant	Apr 26	Oct 19	174 days	690 ft
Kokomo 3 WSW	Apr 27	Oct 18	174 days	822 ft
Lafayette 8 S	Apr 20	Oct 20	182 days	732 ft
Lafayette Purdue Univ Airport	Apr 26	Oct 18	173 days	599 ft
Lagrange	Apr 26	Oct 21	176 days	900 ft
Lakeville	May 1	Oct 13	163 days	841 ft
Laporte	Apr 19	Oct 27	191 days	809 ft
Logansport Cicott St.	Apr 20	Oct 23	185 days	600 ft
Lowell	Apr 29	Oct 16	171 days	665 ft
Madison Sewage Plant	Apr 11	Oct 31	201 days	460 ft
Marion 2 N	Apr 26	Oct 20	175 days	790 ft
Martinsville 2 SW	Apr 24	Oct 15	173 days	592 ft
Milan 5 NE	Apr 30	Oct 16	168 days	975 ft
Mount Vernon	Apr 7	Oct 28	202 days	357 ft
Muncie Delaware Co Airport	Apr 16	Oct 25	190 days	937 ft
N Manchester Wastewater Plant	Apr 26	Oct 19	174 days	760 ft
N Vernon 2 ESE	Apr 21	Oct 21	180 days	743 ft
New Castle 3 SW	Apr 27	Oct 17	173 days	991 ft
Newburgh L&d	Apr 3	Nov 2	214 days	380 ft
Northern Indiana WFO	Apr 24	Oct 24	182 days	951 ft
Oolitic Purdue Ex Fm	Apr 20	Oct 20	181 days	652 ft
Paoli	Apr 21	Oct 18	178 days	560 ft
Patoka Lake	Apr 10	Nov 1	204 days	561 ft
Perrysville 4 WNW	Apr 23	Oct 14	171 days	611 ft
Petersburg 61 Brg	Apr 20	Oct 22	186 days	472 ft
Plymouth	Apr 25	Oct 21	178 days	815 ft
Portland 1 SW	Apr 28	Oct 15	171 days	910 ft
Princeton 1 W	Apr 13	Oct 25	194 days	480 ft
Rensselaer	Apr 23	Oct 18	177 days	630 ft
Richmond Wtr Wks	Apr 24	Oct 20	180 days	1,005 ft
Rochester	Apr 23	Oct 21	180 days	760 ft
Rockville	Apr 30	Oct 12	164 days	689 ft
Rushville	Apr 19	Oct 23	185 days	948 ft
S Bend	Apr 23	Oct 23	181 days	710 ft
Saint Meinrad	Apr 11	Oct 26	197 days	510 ft
Salem	Apr 17	Oct 22	186 days	785 ft
Scottsburg	Apr 18	Oct 20	185 days	570 ft
Seymour 2 N	Apr 16	Oct 21	187 days	570 ft
Shakamak State Park	Apr 14	Oct 26	193 days	549 ft
Shelbyville Muni Airport	Apr 14	Oct 23	191 days	804 ft
Shelbyville Sewage Plant	Apr 17	Oct 22	187 days	752 ft
Shoals 8 S	Apr 15	Oct 23	189 days	477 ft
South Bend Michiana Regional Airport	May 1	Oct 19	170 days	773 ft
Spencer	Apr 20	Oct 20	180 days	549 ft
Stendal	Apr 6	Oct 30	206 days	635 ft
Tell City	Apr 5	Nov 1	208 days	390 ft
Terre Haute Caa Airport	Apr 14	Oct 24	192 days	575 ft
Terre Haute Hulman Regional Airport	Apr 16	Oct 18	183 days	575 ft
Terre Haute Indiana State	Apr 15	Oct 19	187 days	507 ft
Tipton 5 SW	Apr 23	Oct 17	174 days	890 ft
Valparaiso Porter Co Muni Airport	Apr 20	Oct 26	187 days	770 ft
Valparaiso Wtr Wks	Apr 22	Oct 25	185 days	800 ft
Vevay	Apr 9	Nov 1	204 days	495 ft
Vincennes 5 NE	Apr 11	Oct 26	197 days	452 ft
W Lafayette 6 NW	Apr 26	Oct 12	169 days	708 ft
Wabash	Apr 23	Oct 21	181 days	665 ft
Wanatah 2 WNW	Apr 29	Oct 13	166 days	735 ft
Warsaw	Apr 28	Oct 18	170 days	815 ft
Washington 1 W	Apr 10	Oct 25	197 days	482 ft
Wheatfield	Apr 25	Oct 17	173 days	665 ft
Whitestown	Apr 21	Oct 20	180 days	941 ft
Winamac 2sse	Apr 25	Oct 18	173 days	690 ft
Winchester Airport 3 E	Apr 20	Oct 21	183 days	1,110 ft
Woodburn 3n	Apr 27	Oct 19	174 days	710 ft
Young America	Apr 25	Oct 17	174 days	773 ft

Sources

NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.

Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.