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A map of the Eastern half of the united states with state boundaries overlaid in white and a red to white color gradient overlay corresponding to air temperature. The hottest temperature is a near black dark red, at 40 degrees Celsius. The coolest temperature on the scale is white corresponds to 10 degrees Celsius or less. The only area not in the red shade of the spectrum of 20 degrees of higher is in Canada. From Maine to Texas, the entire landscape is a deep red color.

Sizzling Start to Summer

The eastern United States sweltered under high heat and humidity in late June 2025, breaking temperature records across the Midwest and Northeast.

Image Credit: NASA Earth Observatory/ Wanmei Liang
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Image CreditNASA Earth Observatory/ Wanmei Liang
Size720x765px