Chicago Police Department arrests per clock hour · weekdays (Mon–Thu) vs. weekends (Fri–Sun)
Weekend peak
2 AM · 532
Weekday peak
12 AM · 523
12 AM–4 AM share of arrests
37%
Source: City of Chicago open data portal, Chicago Police Department Arrests table (aggregated by the project; no row-level data was kept) · January 2022 to 2026-10-16 · as of Oct 20, 2026Chart by duiarrested.com