Climate Illinois
Climate normals and climate locations across Illinois.
1991–2020 normals156 climate locations
Climate locations in Illinois
Select a location for monthly normals, daily climate data, climate history and station information.
AlbionAledoAltonAltonaAnnaAntiochAthensAuroraAvonBarringtonBaylisBellevilleBentonBloomingtonBradleyBrookportBrownstownBurbankCahokiaCairoCarbondaleCarlinvilleCarlyleCarmiCarthageCentraliaChampaignCharlestonChenoaChicagoChicagoChicago-O Hare International AirportComptonCongervilleDanvilleDecaturDixonDu QuoinDwightEffinghamElginElizabethElk Grove VillageFairfieldFairmountFarmer CityFloraFreeportFultonGalesburgGalvaGeneseoGibson CityGladstoneGlenviewGolcondaGoldenGrayvilleGriggsvilleHarrisburgHavanaHennepinHidalgoHillsboroHoopestonHutsonvilleJacksonvilleJerseyvilleJolietKankakeeKewaneeKnoxvilleLa HarpeLaconLake VillaLawrencevilleLebanonLincolnLisleLoamiLouisvilleMarengoMarionMarseillesMason CityMattoonMcLeansboroMinonkModocMolineMonmouthMorrisMorrisonMorrisonvilleMount CarmelMount CarrollMount VernonMoweaquaMundeleinNashvilleNeogaNew BostonNewtonNormalNorthbrookOlive BranchOlneyOttawaPalestinePanaParisPark ForestPaw PawPaxtonPeoriaPeruPiper CityPittsfieldPoloPontiacPrairie CityPrincetonPrincevilleQuincyRantoulRobinsonRochelleRock IslandRockfordRomeovilleRosiclareRushvilleSalemSaybrookShelbyvilleSimpsonSpartaSpringfieldStocktonStreamwoodSugar GroveSullivanTiskilwaTuscolaUrbanaVandaliaVirdenWalnutWaterlooWatsekaWaukeganWest ChicagoWheatonWhite HallWinchesterWindsor
Climate Chicago - Illinois
| Month | HighºF | LowºF | Precipinch | Wet days | Sunshineh |
|---|---|---|---|---|---|
| Jan | 32 | 18 | 2.05 | 10 | 135 |
| Feb | 36 | 21 | 1.93 | 8 | 136 |
| Mar | 46 | 30 | 2.72 | 11 | 187 |
| Apr | 59 | 41 | 3.62 | 11 | 215 |
| May | 70 | 52 | 4.13 | 11 | 281 |
| Jun | 81 | 63 | 4.06 | 10 | 311 |
| Jul | 84 | 68 | 4.02 | 9 | 318 |
| Aug | 82 | 66 | 3.98 | 9 | 283 |
| Sep | 75 | 57 | 3.31 | 8 | 226 |
| Oct | 63 | 46 | 3.23 | 10 | 193 |
| Nov | 48 | 34 | 3.43 | 11 | 113 |
| Dec | 36 | 23 | 2.56 | 11 | 106 |
Climate summary
What is the average weather in Chicago, Illinois?
Chicago experiences a humid continental climate, marked by a very large seasonal temperature contrast. The inland location amplifies these swings, bringing warm summers and cold winters. The area is fairly wet, with precipitation spread relatively evenly throughout the year, though summers are wetter and winters are the driest season. Residents enjoy over 2,500 hours of sunshine annually.