Average Last Frost Dates for Illinois

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Last Frost Dates were calculated using daily climate data from the period between 1991-2020.

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List of Average Last Frost Dates for Locations in Illinois

LocationAverage Last Frost Dates
AddisonMay 11 - May 20
AlgonquinMay 11 - May 20
AlsipMay 1 - May 10
AltonApr. 11 - Apr. 20
Arlington HeightsMay 11 - May 20
AuroraMay 11 - May 20
BartlettMay 11 - May 20
BataviaMay 11 - May 20
BellevilleApr. 21 - Apr. 30
BellwoodMay 1 - May 10
BelvidereMay 11 - May 20
BensenvilleMay 11 - May 20
BerwynMay 1 - May 10
BloomingdaleMay 11 - May 20
BloomingtonMay 11 - May 20
Blue IslandMay 1 - May 10
BolingbrookMay 1 - May 10
BourbonnaisMay 1 - May 10
BradleyMay 1 - May 10
BridgeviewMay 1 - May 10
BrookfieldMay 1 - May 10
BurbankMay 1 - May 10
Calumet CityMay 1 - May 10
CarbondaleApr. 21 - Apr. 30
Carol StreamMay 11 - May 20
CarpentersvilleMay 11 - May 20
CaryMay 11 - May 20
ChampaignMay 1 - May 10
CharlestonMay 1 - May 10
ChicagoApr. 21 - Apr. 30
Chicago HeightsMay 1 - May 10
CiceroMay 1 - May 10
CollinsvilleApr. 11 - Apr. 20
Country Club HillsMay 1 - May 10
Crest HillMay 1 - May 10
Crystal LakeMay 11 - May 20
DanvilleMay 1 - May 10
DarienMay 1 - May 10
DarienMay 1 - May 10
DecaturMay 1 - May 10
DeerfieldMay 1 - May 10
DeKalbMay 1 - May 10
Des PlainesMay 1 - May 10
DixonMay 11 - May 20
DoltonMay 1 - May 10
Downers GroveMay 1 - May 10
East MolineMay 1 - May 10
East PeoriaMay 1 - May 10
EdwardsvilleApr. 11 - Apr. 20
ElginMay 11 - May 20
Elk Grove VillageMay 11 - May 20
ElmhurstMay 1 - May 10
Elmwood ParkMay 1 - May 10
EvanstonMay 1 - May 10
Evergreen ParkMay 1 - May 10
Fairview HeightsApr. 21 - Apr. 30
FrankfortMay 1 - May 10
Franklin ParkMay 1 - May 10
FreeportMay 11 - May 20
GalesburgMay 1 - May 10
GenevaMay 11 - May 20
Glen EllynMay 11 - May 20
Glendale HeightsMay 11 - May 20
GlenviewMay 1 - May 10
GodfreyApr. 11 - Apr. 20
Granite CityApr. 11 - Apr. 20
GrayslakeMay 11 - May 20
GurneeMay 11 - May 20
Hanover ParkMay 11 - May 20
HarveyMay 1 - May 10
Highland ParkMay 1 - May 10
HinsdaleMay 1 - May 10
Hoffman EstatesMay 11 - May 20
Homer GlenMay 1 - May 10
HomewoodMay 1 - May 10
HuntleyMay 11 - May 20
JacksonvilleMay 1 - May 10
JolietMay 1 - May 10
KankakeeMay 1 - May 10
La GrangeMay 1 - May 10
Lake ForestMay 1 - May 10
Lake in the HillsMay 11 - May 20
Lake ZurichMay 11 - May 20
LansingMay 1 - May 10
LemontMay 1 - May 10
LibertyvilleMay 11 - May 20
LisleMay 11 - May 20
LockportMay 1 - May 10
LombardMay 11 - May 20
Loves ParkMay 11 - May 20
Machesney ParkMay 11 - May 20
MacombMay 1 - May 10
MarionApr. 21 - Apr. 30
MattesonMay 1 - May 10
MattoonMay 1 - May 10
MaywoodMay 1 - May 10
McHenryMay 11 - May 20
Melrose ParkMay 1 - May 10
MokenaMay 1 - May 10
MolineMay 1 - May 10
MontgomeryMay 11 - May 20
MortonMay 1 - May 10
Morton GroveMay 1 - May 10
Mount ProspectMay 1 - May 10
MundeleinMay 11 - May 20
NapervilleMay 11 - May 20
New LenoxMay 1 - May 10
NilesMay 1 - May 10
NormalMay 11 - May 20
NorridgeMay 1 - May 10
North AuroraMay 11 - May 20
North ChicagoMay 1 - May 10
NorthbrookMay 1 - May 10
O'FallonApr. 21 - Apr. 30
Oak ForestMay 1 - May 10
Oak LawnMay 1 - May 10
Oak ParkMay 1 - May 10
Orland ParkMay 1 - May 10
OswegoMay 11 - May 20
OttawaMay 1 - May 10
PalatineMay 11 - May 20
Palos HillsMay 1 - May 10
Park ForestMay 1 - May 10
Park RidgeMay 1 - May 10
PekinMay 1 - May 10
PeoriaMay 1 - May 10
PlainfieldMay 1 - May 10
Prospect HeightsMay 1 - May 10
QuincyApr. 21 - Apr. 30
Rock IslandMay 1 - May 10
RockfordMay 11 - May 20
Rolling MeadowsMay 11 - May 20
RomeovilleMay 1 - May 10
RoselleMay 11 - May 20
Round LakeMay 11 - May 20
Round Lake BeachMay 11 - May 20
SchaumburgMay 11 - May 20
ShorewoodMay 1 - May 10
SkokieMay 1 - May 10
South ElginMay 11 - May 20
South HollandMay 1 - May 10
SpringfieldMay 1 - May 10
StreamwoodMay 11 - May 20
SycamoreMay 11 - May 20
Tinley ParkMay 1 - May 10
UrbanaMay 1 - May 10
Vernon HillsMay 1 - May 10
Villa ParkMay 1 - May 10
WashingtonMay 11 - May 20
WaukeganMay 11 - May 20
West ChicagoMay 11 - May 20
WestchesterMay 1 - May 10
WestmontMay 1 - May 10
WheatonMay 11 - May 20
WheelingMay 1 - May 10
WilmetteMay 1 - May 10
WoodridgeMay 1 - May 10
WoodstockMay 11 - May 20
YorkvilleMay 11 - May 20
ZionMay 11 - May 20
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