Category: Climatology (Page 2 of 52)

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.

Winter Weather Update: Christmas rain/snow showers develop after 3PM in the western Metro area, a few slushy inches possible in the Foothills

December 25, 2024 / Ben Castellani / 0 Comments

After days and days of warm and dry weather, things in the Front Range are taking an interesting turn right in time for Christmas. A trough of low pressure is moving into the Four Corners area right now with a mix of clouds and sunshine out ahead of it. Later in the day, a cold front will move through from the northeast leading to scattered showers spawning across the western Metro area. Mostly rain is expected for the lower elevations which will be largely too warm, but Foothills communities could pick up a few slushy inches this evening to nab a white Christmas after all! We discuss a bit of Christmas climatology for Boulder, the weather setup at hand today, the latest timing of the rain/snow showers, and just how much accumulation may fall this evening and where.

Win prizes by completing the BoulderCAST 2024 weather-themed holiday crossword puzzle!

December 24, 2024 / BoulderCAST Team

Hint: All of the clues are related to Boulder, Denver, and/or Colorado weather. OK, well most of the clues…

This Week in Colorado Weather: December 23, 2024

December 23, 2024 / Ben Castellani

This week’s weather in the Front Range will see a shift from the recent unseasonably warm temperatures to cooler conditions, with periodic light snow expected in the Mountains throughout the week. While a white Christmas is unlikely for the Denver Metro area, there will be a slight chance of rain or snow showers Wednesday evening and night. The late-week period will remain active with several disturbances bringing more light snow to the Mountains, but the lower elevations around Boulder and Denver will stay mostly dry with mild temperatures. We also look ahead to next week when we’ll likely see a longer-term transition to much colder and snowier weather for the New Year.

This Week in Colorado Weather: December 16, 2024

December 16, 2024 / Ben Castellani

As we rapidly approach the holiday season, the Front Range continues to experience unseasonably warm and dry conditions. This past weekend brought beautiful weather with temperatures warming into the 50s, accompanied by strong downslope winds at times. Looking ahead, the forecast remains mostly quiet with high pressure dominating the central Rockies, including Colorado. While a few bouts of wind are expected this week, precipitation will be nearly non-existent over the next seven to ten days, making a white Christmas highly unlikely for the Denver-Boulder area.

November 2024 Graphical Weather Review: Modest but widespread drought improvement in eastern Colorado thanks to one of our all-time wettest Novembers

December 6, 2024 / BoulderCAST Team

November 2024 was exceptionally moist across most of eastern Colorado, with some locations nabbing their wettest November on record. In Boulder, we received a respectable 2.64″ of moisture, good enough for 4th all-time since the late 1800s. While there is certainty still more work to do, the widespread wet weather allowed for modest drought improvement across much of the state. Despite a late and lackluster start to the snow season, Boulder and Denver have both surged above normal season-to-date. Here’s a quick and colorful graphical recap of our weather during November and how it relates to climatology.

Winter Weather Update: Rain changes to wet snow Tuesday night across the lower elevations, but it’s the Mountains that will really get hammered!

November 26, 2024 / BoulderCAST Team

Get ready, Colorado! A major winter storm is on the horizon, promising to blanket the Mountains with up to 30 inches of snow and transform ski resorts into powder paradises. But that’s not all—rain will turn to snow in the Denver Metro area Tuesday night, potentially disrupting the Wednesday morning commute. Curious about the full forecast and how it might impact your Thanksgiving plans? Read on as we discuss the timing of the change-over to snow, the expected snowfall totals for everyone and when travel may be most impacted.