October 2025 was definitively warm and dry throughout the Front Range with the primary storm track remaining well north across Wyoming and Montana. The only real precipitation event during the month occurred on October 6th with some locations picking up more than one half inch of rain. Our first frost of the season occurred about two weeks later than normal, and to this day we’re still waiting for those magical first snowflakes across the lower elevations. Here’s a quick and colorful graphical recap of our weather during October and how it relates to climatology.
Category: Tropical Weather (Page 1 of 19)
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This week will feature a dynamic stretch of autumn weather in the Front Range including dramatic temperature swings, another influx of tropical moisture, and a midweek warm surge that could push us near 80°F. Following all of that, a late-week trough will bring a chilly front and our best shot at rain, plus there’s a weekend wildcard that might even produce some snow. Curious what’s driving all this weather? We break down the atmospheric setup, moisture sources, and ensemble model data in our latest weekly outlook.
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September 2025 brought a classic Colorado blend to Boulder and the Front Range: near-normal temps, wetter-than-average skies, and a lively mix of sunshine and storms. A standout precipitation event around the 23rd delivered soaking rain in the lowlands and the first real coating of snow to the Mountains. The month eased us gently into autumn, with crisp mornings, comfortable afternoons, and brilliant foliage lighting up the higher terrain. And yes—who could forget that dramatic wave of Canadian wildfire smoke that swept through, reminding us how connected we are to the broader arid landscape of western North America. Here’s a quick and colorful graphical recap of our weather during September and how it relates to climatology.
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