Tweet: Rockford's 57 consecutive hours below zero January 29-February 1, 2019
by NWS Chicago on Twitter
#Rockford's 57 consecutive hours below zero from 4:29pm on 1/29 to almost 2am this AM (2/1) is the 9th longest such streak since 1929-30. This is an unofficial ranking list since the data does not extend back to entire period of record (to 1905). #ilwx pic.twitter.com/nuUrtbSjkh
— NWS Chicago (@NWSChicago) February 1, 2019