Find the hottest summer day for thousands of U.S. stations with this interactive map.
How do this year's temperatures on the first day of summer compare to historical highs and lows? Compare your local conditions to these maps showing the warmest and coldest first days of summer for more than 4,000 U.S. locations.
A new analysis allows non-experts to view 2016 and year-to-date climate data for thousands of U.S. locations.