Several eastern states are experiencing an unusual August, with temperatures in some areas running 5 to 7 degrees Fahrenheit below average so far this month, according to PRISM weather data.

Meteorologist Mark Margavage predicted that mean temperatures in the region are likely to be significantly below average for the month of August, depending on the path Tropical Storm Erin takes.

Why It Matters

This unexpected cool spell in August disrupts the typical summer weather pattern in a region that usually experiences peak summer heat during August.

What To Know

A map of daily mean temperature anomalies from August 1 to 11, based on PRISM data, reveals cooler-than-usual areas along portions of the East Coast.

The largest cool anomalies are centered over Virginia and the Carolinas, extend

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