Holy hot river! Potomac water temperature highest on record last week


The Potomac river at Little Falls (USGS)

I just downloaded the USGS temperature series for the Potomac River at Little Falls back to 1988 [as far back as it goes]. Amazing stuff.

Highest Max water temperature: 7/22/11, 35.4°C [96 F]

Highest Min water temperature: 7/24/11, 32.7°C [91 F]

Highest Mean water temperature: 7/23/11, 33.5°C [93 F]

That’s veritably bath water...

Data available here.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.

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