The second week of September will bring a prolonged period of unseasonable warmth to the Front Range along with minimal rainfall. The early to mid-week period will actually have slight chances for rain, but late-week will have much drier air and gusty winds leading to elevated fire danger. Temperatures will remain close to 90 degrees every single day in the extended, with some influx of wildfire smoke at times from the Pacific Northwest. Read on for all the details.
August brought welcomed change to the Front Range with the elusive American Southwest Monsoon finally making a late appearance. While much of the area ended with below normal rainfall in August, it was notably wetter than months prior leading to a slight improvement in the regional drought. It was also hot in August, with overall temperatures and the number of 90-degree days landing above normal. Here’s a quick and colorful graphical recap of our weather during August and how it relates to climatology.
Our scorching hot, two-week-long heatwave will finally come to an end later this week, but not before we endure a few more days. A cold front is slated to arrive into the Denver area late Wednesday finally knocking us out of the 90s. This front will also come with an enhanced chance of rainfall, though monsoon moisture is still largely lacking. Despite daily chances for rain this week, our existing fires will continue to smolder and the risk of new fire ignitions remains uncomfortably high.
The North American Monsoon is responsible for pumping subtropical moisture into the southwestern United States every summer, moisture which ultimately supplies the fuel for Colorado’s daily summertime thunderstorms — rain we desperately need in the Front Range right now following months scarce precipitation and worsening drought. However, the arrival and intensity of the summer monsoon varies substantially from year to year, especially in our area. In this long-range outlook, we discuss the developing dire drought situation, the current state of the monsoon, what’s happening with El Niño, and what to expect for weather in the coming months across Front Range Colorado.
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