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The number of days this year that the official reading at Phoenix Sky Harbor Airport reached at least 110 degrees Fahrenheit, as of Sunday, Sept. 10, surpassing the previous record of 53 days set in 2020. The Arizona city has experienced the hottest three months since record-keeping began in 1895; the daily average temperature in June, July and August was 97 degrees Fahrenheit.

(Associated Press — Sept. 10, 2023)

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