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When to Expect the Warmest Day of the Year

Warmest Day

During the summer months, most areas in the United States approach their highest temperatures for the year. To give you a better idea of the warmest time of year for your area, NCEI has created “Warmest Day of the Year” maps with the help of Climate.gov for the contiguous United States, Alaska, Hawaii, and Puerto Rico. The maps are derived from the 1991–2020 U.S. Climate Normals, NCEI’s 30-year averages…

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