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DC at record pace for 100-degree days

There have been three days at or above 100 through Friday, surpassing the old record of two to date.

Temperature gauge showing 146.4 pointed at a deck on a very hot Friday.
A deck that's much hotter than the scorching air. (Janet Stevens/CW app)

It might feel like summer has been going on forever already given recent weather, but believe it or not, it's still on the earlyish side for days at or above 100.

[Analysis of 100-degree days in Washington, DC]

DC now has three of them. One in June, then the last two days. Saturday is expected to make it a fourth, proper since it is the Fourth. It'll likely be a record for Independence Day.

Graph and data for 100-degree days in DC this year. Avg to date is 0.2 and we've had 3.
(Capital Weather)

To date, 2026 is now in the lead for most days at or above 100. Four other years have seen two days through July 3: 1959, 1901, 1898 and 1874.

The lead should be short-lived. In 2012, a string of 100s was around the corner, and by July 8 its count was up to five, the most through the date.

DC averages about a day at or above 100 per year, but mainly they come in chunks during hotter summers, and the city can go several years without. In 2025, there were none. In 2024, there were six.

Thankfully, there are no reliable forecasts of 100 in the near future for us once we get past this spell. Of course, the last time we had them in June and July — 2024 — there were more in August.

Ian Livingston

Ian Livingston

Information lead with two decades as forecaster. Journalist covering global weather and climate.

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