Records & anomalies

City Weather Records — Hottest & Coldest Days

The single most extreme days each city has ever recorded — the all-time record high and record low, with the dates they were set — paired with a live anomaly readout that answers “is it normal to be this hot?” by measuring today’s temperature against the month’s normal high. Built from NOAA’s 1991–2020 normals and the nearest long-term weather station’s full daily record, across 75 major U.S. cities. Open data, no app.

City weather records

The largest U.S. metros by population. Each links to its full records page at /records/[state]/[city] — live anomaly first, all-time records below.