Last updated October 15, 2021
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Southwest US Heat Wave June 2016

United States

In mid-June 2016 temperatures began soaring across the Southwest, breaking records. This historic heatwave may have peaked around June 20/21, when temperatures extended up to 125˚, but it extended through June due to a record-breaking hot dome of high pressure sitting over the region.

As the climate warms, the most extreme heat events are becoming dramatically more frequent.

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surface temperature map