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.
Category: Monthly Recap (Page 1 of 3)
August 2025 was on track to be our third scorcher in a row — hot, dry, and smoky — until a late-month shift brought in a welcome stretch of cooler, wetter weather. That pattern change helped balance things out across the Front Range, with most areas landing close to average for rainfall and just slightly warmer than normal overall. Still, it wasn’t all relief: the month packed in plenty of wildfire smoke and a few record-breaking heat days that served to remind us that summer wasn’t done yet. Here’s a quick and colorful graphical recap of our weather during August and how it relates to climatology.
NOTE: This monthly recap was delayed due to missing data in the August 2025 climate record for Boulder which has since been partially filled with best-guess approximations.
July 2025 was our second consecutive hot and dry month. The summer monsoon has been very stingy so far, leaving Boulder and much of the Denver region parched with drought conditions returning to parts of the Front Range. July didn’t hold back on extremes either: record-breaking heat at times scorched the region, plowable hail hammered Gunbarrel, and a rare funnel cloud spun up over the Foothills of Boulder County. Here’s a quick and colorful graphical recap of our weather during July and how it relates to climatology.
June 2025 started out cool and rainy in the Front Range, but precipitation became much more scarce as the month wore on, with our landscape drying out and fire danger creeping up over time. The month also featured several rounds of damaging severe weather and multiple sizzling heat waves. Here’s a quick and colorful graphical recap of our weather during June and how it relates to climatology.
May 2025 brought cool, rainy days to the Front Range, nurturing lush, green landscapes ahead of what is expected to be a hot and dry summer. The month also featured striking weather events, including a few picturesque tornadoes nearby and multiple rounds of snow blanketing the high Foothills. Here’s a quick and colorful graphical recap of our weather during May and how it relates to climatology.
April 2025 was a mild and mostly dry month across the Front Range, with almost all of the precipitation coming via a mid-month snowstorm that blanketed Boulder in 8 inches of slop. Here’s a quick and colorful graphical recap of our weather during April and how it relates to climatology.
March 2025 was characterized by warm temperatures and largely dry conditions in the Front Range. The month saw a mix of seasonal weather patterns, including occasional gusty winds and a few minor snow events. While March finished as one of our all-time least snowy on record, the region experienced a much-needed deluge of rain during the final weekend of the month which will help to stave off drought for a little while longer. Here’s a quick and colorful graphical recap of our weather during March and how it relates to climatology.
Hot on the heels of an extremely warm and dry end to 2024, January landed on the complete opposite end of the spectrum with well above normal snowfall and very cold conditions across much of Colorado, including here in Boulder. Here’s a quick and colorful graphical recap of our weather during January and how it relates to climatology.
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