Category: Climatology (Page 8 of 56)

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.

Colorado Forecast Update: There’s still no clear-cut end to our relentless warm & dry spell in sight

October 3, 2024 / Ben Castellani

The Front Range is experiencing an exceptionally quiet and warm early autumn weather pattern that is expected to persist through the weekend and into next week. This prolonged dry spell is due to a stubborn ridge of high pressure over the southwestern United States, preventing any significant weather systems from reaching Colorado. Despite a couple of weak cold fronts, temperatures will remain well above normal throughout the extended, with record highs possible on Saturday. Unfortunately, there is no significant rain or snow in the pipeline, exacerbating the ongoing drought and increasing fire danger across the region. Here’s the latest on what is becoming a dire situation.

When will our first snow occur? Enter your prediction for a chance to win! ❄️☃️

October 2, 2024 / BoulderCAST Team

10th Annual BoulderCAST First Snowfall Contest

Are you eager for the first snowball fight of the season? Have you already waxed your skis and purchased your overpriced Epic Pass? Did you swap on your snow tires far too early again? The Front Range’s first big snow could be right around the corner! Mother Nature has been wreaking havoc on this contest recently — within just the last four years we’ve had our latest AND earliest snowfalls on record! What’s in store for 2024? We provide a brief overview of Boulder’s first snowfall climatology and then pose the question…“When will Boulder’s first measurable snow occur this year?” Submit your guess for a chance to win an assortment of prizes. Those who get closest to the date and amount of our first snow win.

*Sorry but the contest is now closed to entries*

September 2024 Graphical Weather Review: Yet another warm & dry month with further drought expansion in the Front Range

October 2, 2024 / BoulderCAST Team

September was an exceptionally warm month in the Front Range, with most areas landing more than four degrees above average. This was our fourth consecutive month that finished on the north side of normal. Outside of a single soaking rain event, the month was also extremely dry with drought expanding further across the area. Here’s a quick and colorful graphical recap of our weather during September and how it relates to climatology.

This Week in Colorado Weather: September 30, 2024

September 30, 2024 / Andy

This week’s weather will once again be excruciatingly quiet in the Front Range. It’ll be a roller-coaster ride in temperatures from the 70s to around 90 degrees, but no rain is in the forecast as high pressure ridging keeps things totally dry. Two dry cold fronts will pass through the area — one on Monday and another later in the week, but this won’t prevent us from nearing record heat on Wednesday. We also discuss the potential for tropical development in the days ahead and take a look at the devastating aftermath of Hurricane Helene in North Carolina.

This Week in Colorado Weather: September 23, 2024

September 23, 2024 / Ben Castellani

The Front Range experienced its first significant rainfall in five months, with some areas receiving up to an inch of rain over the weekend. The start of the work week will be relatively cool. However, a strong ridge pattern known as an omega block will bring warm and dry conditions from Wednesday onwards, with temperatures rising into the 80s and potentially reaching record highs by Thursday. While there is no hope for any snow in our forecast yet, our 10th Annual First Snow Contest will open to entries later this week. Read on for all the details.

Colorado Forecast Update: Widespread rain inbound for Boulder and Denver this weekend, several inches of snow for the Mountains (Updated)

September 20, 2024 / Ben Castellani

This weekend will surely feel a lot different than recent ones as the first autumn storm system of the year arrives into Colorado — conveniently aligning with the official first day of autumn on Sunday. While a fair amount of uncertainty remains in potential precipitation totals for the Front Range, everyone should see an extended period of light to moderate rainfall from late Saturday afternoon into Sunday morning. Fortunately it is still too warm for frozen precipitation across the lower elevations, but snow will fall in the Mountains accumulating up to several inches. Here’s our latest thoughts on what has turned out to be a tricky storm to forecast!