Last night’s quick-hitting snowstorm hit with a bang in the southwest Denver Metro area and southern Foothills, with locally heavy snowfall up to 20″ falling in parts of Jefferson County. Elsewhere, snow amounts fell well in-line with our forecast, including some Front Range cities not receiving a single snowflake! We review how the storm unfolded, the snow totals from across the region and look ahead to the remarkably warm and sunny weather about to take center stage.
Category: Climatology (Page 1 of 54)
These posts contain information about the long-term weather patterns of Boulder County. Potential topics may include 30-day weather outlooks, El Nino/La Nina, and seasonal forecasts. You will find less about the day-to-day weather, with more focus on longer trends and patterns.
It’s been a brutally cold week in the Boulder-Denver area with temperatures remaining entirely below freezing since Saturday morning. Up until now, we haven’t had much snow to show for this Arctic plunge, but that changes later on Thursday as we finally get some moisture and a real storm system passing through to generate widespread snowfall across the Front Range. We discuss the latest forecast details, including how models have been trending the storm further south in recent runs which will make for a tricky forecast, one with a very sharp gradient in expected snowfall totals. Let’s take a look.
We hope you didn’t put your cold weather gear away for the season yet — another Arctic Blast will ooze into eastern Colorado this week! A strong Arctic high will entrench the region in bitter cold air through midweek, with highs during this period well below normal in the teens and 20s with lows in the single digits or slightly below zero. A few weather systems moving through in the westerly flow aloft will bring several chances for snow to the area, but for the most part accumulations will remain relatively light east of the Mountains. Temperatures will moderate by the end of the week and especially the weekend as ridging builds in from the west and the dense Arctic air retreats eastward with surprisingly warm weather not too far off on the horizon.
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Following a bitter cold and snowy January in the Front Range, the month of February so far has brought with it milder conditions. Last week we had our first 60-degree day in Boulder since just before Christmas, and even our first 70-degree day since late October. The warmer weather has been a welcomed reprieve, though it has rightfully confused some flowering plants across the area with early blooms. This warm weather was never going to last though — we’ve still got plenty of winter to go and this week will get us right back on-track with a two-part blast of Arctic air and snow headed for the Front Range. Read on for the latest details on the snowfall timing, amounts, and expected temperatures.
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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While Punxsutawney Phil and Flatiron Freddy both saw their shadows Sunday morning solidifying their predictions for six more weeks of winter, we’ll start off February with wildly above normal temperatures in the 60s to lower 70s here in the Front Range. However, we are watching an Arctic cold front that will peskily waver back and forth across northeast Colorado as the week progresses leading to fluctuating temperatures and plenty of uncertainty. The brunt of the cold air, though, likely will not plunge into our area until sometime next week alongside increasing chances for snowflakes.
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BoulderCAST Daily – Fri 02/21/25 | Clearing out and slowly warming
⦁❶⦁ Snow tapers off by midday, then expect slowly rising temperatures ⦁❷⦁ A …
BoulderCAST Daily – Wed 02/19/25 | A quiet & very cold Wednesday, but a potentially significant snowstorm is brewing for Thursday night!
⦁❶⦁ Bitter cold temperatures this morning near or slightly below zero for the …
BoulderCAST Daily – Tue 02/18/25 | The bitter cold Arctic air lingers for several more days, banded snow targets the northern Front Range tonight!
⦁❶⦁ Temperatures in the single digits this morning with very light snow falling …
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