Records Broken on June 30, 2026
US weather stations that set a new daily high- or low-temperature record on June 30, 2026, measured against 55+ years of NOAA history.
YOSEMITE PARK HQ, CA broke a cold record that had stood since 1970 — 56 years. The old mark was 43°F; the new one is 36°F.
Biggest Heat Records
Biggest Cold Records
Records by State
How we count records: A station sets a daily record when its high or low for the date beats every prior reading at that station for the same calendar day. We only count stations with at least 30 years of history for that day and filter readings flagged by NOAA's quality-control process. Data: NOAA NCEI GHCN-Daily. Recent days may rise as late-reporting stations are added.
What the multiple is not: Nearby stations break records together, so a single day's total varies far more than independent counting would suggest. Treat the multiple as a description of the day, not a significance test. Records are measured against each station's own history since 1970, not all-time state or national marks.