Category: Climatology (Page 1 of 69)

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.

El Niño Is Coming — But Colorado Likely Faces a Hyperactive Fire Season First

Colorado headlines have been buzzing about a looming “Super El Niño,” but the story behind the hype is far more layered than the headlines let on. Before leaning into the dramatic graphics and sweeping claims, it’s worth unpacking where this narrative actually came from and why one overzealous model run has taken on a life of its own. More importantly, we must consider what this all really means for our state as we limp into summer with record‑low snowpack, deepening drought, and a fire season that has already been sharpening its teeth. The truth is far more nuanced than the current online discourse suggests.

Continue reading

This Week in Colorado Weather: April 20, 2026

The atmosphere is gearing up for a dramatic mid‑week pivot, and the Front Range is about to feel every bit of it. We start the week under a warm, bone‑dry ridge that will send temperatures soaring and fire danger spiking—especially by Wednesday, when downslope winds and exceptional dryness are set to collide. But just as quickly, the pattern will flip. A pair of incoming troughs will drag us into a cooler, unsettled stretch of weather heading into the weekend, with several chances for much‑needed moisture and even the prospect of a few snowflakes mixing in at times. It’s a true tale of two patterns this week! Read on for all the details.

Continue reading

Winter Storm Recap: That brief burst of heavy snow was great, but the drought marches on

Friday delivered one of those classic Colorado curveballs. The storm showed up fashionably late, then hit harder than expected once it finally got going. It left behind a fast‑melting blanket of spring snow and cleared out almost as quickly as it arrived. In today’s update, we break down the wild midday burst of snow, take a look at how the forecast held up, and highlight why the real headline may have been what happened — or didn’t happen — after the flakes stopped.

Continue reading

Colorado Winter Weather Update: From Fire Danger to Snowflakes in Just 12 Hours, Then Comes a Hard Freeze

A sharp pattern shift is lining up for the Front Range to end the week, and it’s going to feel a lot different than the stretch of mild, breezy days we’ve been riding lately. Thursday brings one more round of elevated fire danger, but by tonight a much colder airmass barrels in and sets the stage for a quick burst of snowflakes Friday morning — followed by a hard freeze Friday night that may end up being the most impactful part of the whole event. Here’s what to expect as winter makes a brief, timely return to the Denver-Boulder area.

Continue reading

March 2026 Graphical Weather Review: The warmest March on record by a massive margin (and warmer than all but a few Aprils)

March 2026 delivered one of Colorado’s most jarring spring months on record with temperatures skyrocketing to unprecedented levels as the region shattered long‑standing warmth records for weeks on end. Western snowpack rapidly declined during this multi-week heatwave, reaching historic lows in a majority of basins across the West, including every major basin in Colorado. Brief interjections of snow occurred during the month across the Front Range, but most the state ended with well below normal precipitation. Here’s a quick and colorful graphical recap of our weather during March and how it relates to climatology.

Continue reading

This Week in Colorado Weather: March 30, 2026

March is supposed to bring hints of spring, not the kind of heat that rewrites the record books and eats away snowpack like it’s June. Yet here we are again, recapping another weekend of astonishing warmth, more broken records, and a dire Westwide snowpack situation that has become genuinely alarming. We walk through just how extreme the heatwave has been, why Colorado’s water outlook is now in uncharted territory, and what the coming early April pattern shift might (or might not) do to slow the damage that’s already been done. Let’s dig in.

Continue reading

This Week in Colorado Weather: March 23, 2026

As if last week’s record‑smashing heatwave wasn’t enough, the atmosphere has decided to double down this week. After a brief cooldown, we’re gearing up for another round of exceptional warmth—with Colorado’s snowpack plunging to levels more typical of early summer than March. In today’s update, we break down the new records already in the books, the alarming snowpack decline, and what to expect as a second pulse of historic warmth takes aim at the Front Range.

Continue reading

« Older posts