CHICAGO (FOX 32 News) -
Autumn weather came with authority on Saturday behind a strong cold front. The cool weather persisted through the weekend, with the coolest temperatures observed this morning, accompanied by a frost in many places. Earlier today, Rockford dropped to 31° and Chicago O'Hare to 37°.
The first freeze of the season (32 or lower) occurs, on average, on October 15th for Chicago. The earliest freeze on record occurred on September 22nd, 1995 when the mercury dipped to 32. The latest freeze on record occurred on November 24th, 1931 where the temperature dropped to 30.
The first hard freeze (killing frost, 28 degrees or lower) occurs on October 27th. The earliest hard freeze to occur was October 2, 1974 where the mercury dipped to 28. The latest hard freeze occurred on December 3rd, 1899 where the low temp dropped to 27.
This was the first September freeze in Rockford since September 29, 2003.
This was the earliest freeze in Rockford in 17 years, since September 22, 1995.
The low of 37° at Chicago was the earliest 37° or lower since September 22, 1995.
Below is a list of low temperatures observed this morning around the Chicago area.
MT CARROLL 26
ELIZABETH 28
AURORA AIRPORT 29
MCHENRY 30
MOLINE AIRPORT 30
PAXTON 2WSW 30
PERRY 30
PRINCEVILLE 2W 30
ALTONA 31
COAL CITY 4NNW 31
FREEPORT 31
MARSEILLES 31
NEOGA 4NW 31
ROCKFORD AIRPORT 31
CHICAGO DUPAGE AIRPORT 32
DWIGHT 32
KEWANEE 32
ROCHELLE 32
WHEATON 32
EFFINGHAM 3SW 33
ELGIN 33
PITTSFIELD 33
SPRINGFIELD CAPITAL AIRPORT 33
SULLIVAN 3S 33
BARRINGTON 34
CHAMPAIGN WILLARD AIRPORT 34
CHICAGO WHEELING AIRPORT 34
GRIGGSVILLE 34
LAWRENCEVILLE-VINCENNES AIRPORT 34
MORRISONVILLE 34
MT VERNON 34
MUNDELEIN 34
NORMAL 4NE 34
PARIS SEWAGE PLANT 34
PAW PAW 34
PRAIRIE CITY 2S 34
RAMSEY 34
ROBINSON WTYE 34
WINCHESTER 34
CHICAGO BOTANIC GARDENS 35
DECATUR AIRPORT 35
DEKALB NIU 35
LA HARPE 35
MONMOUTH 35
OLNEY 2S 35
SIDELL 5NW 35
WAUKEGAN AIRPORT 35
WHITE HALL 35
CARBONDALE AIRPORT 36
JERSEYVILLE 36
KANKAKEE 36
MATTOON AIRPORT 36
MORRIS 36
PANA SEWAGE PLANT 36
SPRINGFIELD NE 36
VANDALIA 36
AURORA 37
CHICAGO OHARE AIRPORT 37
GALESBURG 37
JOLIET LOCK AND DAM 37
OTTAWA 37
PEORIA INTERNATIONAL AIRPORT 37
STREATOR 37
TUSCOLA 37
BLOOMINGTON AIRPORT 38
CAHOKIA AIRPORT 38
FLORA 38
JACKSONVILLE 38
KASKASKIA LOCKS 38
OGDEN 38
PARK FOREST 38
QUINCY AIRPORT 38
QUINCY LOCK AND DAM 38
SMITHLAND LOCK AND DAM 38
WINDSOR SEWAGE PLANT 38
BLOOMINGTON 5W 39
CARLYLE 39
MINONK 39
BENTLEY 40
CAIRO 3N 40
PERU 40
BROOKPORT DAM 41
CHICAGO MIDWAY AIRPORT 42
GRAND CHAIN DAM 42
