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Denver weather: What is ‘fake fall?’ The 90-degree days aren’t over



DENVER (KDVR) — Coming to the end of August, Denver is seeing cooler temperatures and leaves starting to change colors, but the summer heat isn’t over just yet.

Denver has been rainy and in the 70s at the end of August, but the Pinpoint Weather team said that heading into September, even when the leaves change colors, there are still 90-degree days on the forecast — this current weather is just part of “fake fall.”

What is ‘fake fall?’

FOX31’s Pinpoint Weather Meteorologist Travis Michels said that fake fall is just like when Denver gets “three springs,” where there’s snow, then nice temperatures, then snow again.

Fake fall is when the temperatures start to dip at the end of summer, and it may feel like fall. However, those temperatures will rise again, and probably dip and rise again, before the fall weather is truly in Denver.

Michels said that while temperatures are in the mid-70s at the end of August, September is still expected to see a few 90-degree days. According to National Weather Service records, Denver usually hits at least 90 degrees multiple times in September over the past 15 years.

The daily record highs in September are almost all at or above 90 degrees, except for one day with a record high of 89 degrees.

In 2024, September recorded several above-90-degree days, and it was even hot in October, when there were still 80-degree days on the forecast. That said, 2024 was one of the hottest summers and one of the hottest Octobers in history.

Michels said temperatures should start to cool down to fall temperatures by the end of September.

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