Excessive Heat — Washington, Maryland

2025-06-23 · Washington, Maryland

Event narrative

The ASOS at Hagerstown Regional Airport, KHGR, observed a peak head index of 108F. The RAWS at Antietam Battlefield, ANBM2, observed a peak head index of 112F.

Wider weather episode

A large area of high pressure across the region brought extreme heat and humidity to the Mid-Atlantic.

Source: NOAA Storm Events Database, event_id 1259467. Narrative written by the NWS forecast office that issued the report.