evidence: More than 7,000 daily temperature records across the United States were broken this summer, a Washington Post analysis of data from the National Oceanic and Atmospheric Administration revealed. In the third-hottest summer on record, more than 400 monthly records and 27 all-time records also fell. Daily temperature records, meaning the highest temperature ever recorded at a particular station on a particular calendar date, are broken more frequently than monthly records, which indicate the highest temperature ever recorded during a whole month. Breaking all-time records — the hottest temperature recorded at a station in its entire history — is even rarer. [...] Over the past two decades of summers, far more record highs have been broken than record lows. This summer, more than three times as many high records were broken than low ones.