Category: Climatology (Page 50 of 63)

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.

Early-season Arctic outbreak produced a foot of snow and historic cold

October 30, 2019 / BoulderCAST Team

From start to finish, the early season Arctic airmass which overtook eastern Colorado this week has been truly remarkable! The prolonged period of fluffy snow and historically cold temperatures may not be matched the rest of this winter. We take a look back at the wild ride Mother Nature took us on over the last five days and check the snow totals from the second snow event wrapping up Wednesday morning.

“First Snow” Contest entries are in, but no white stuff on the horizon…

October 1, 2019 / BoulderCAST Team

Thanks to everyone that entered our 2019 First Snow Contest. We briefly review the entries, which actually favor a later date than Boulder’s climatology would suggest. Contest prizes and recognition will be awarded in the days following our first dumping of snow, BIG or SMALL!

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

September 25, 2019 / BoulderCAST Team

5th Annual BoulderCAST First Snow Contest
*CONTEST IS NOW CLOSED TO ENTRIES*

Are you eager for the first snow of the season? Have you already waxed your skis and purchased your Epic Pass? Our first big snow could be right around the corner! We provide a brief overview of Boulder’s first snowfall climatology, discuss the snowfall forecast for the next ten days, and then pose a 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 of our first snow win.

This week in weather: September 16, 2019

September 16, 2019 / Ben Castellani

Two strong Pacific storm systems are moving ashore this week but unfortunately will pass mainly north of Colorado. This will result in continued warm conditions with little opportunity for rainfall or Mountain snow as we conclude the summer season.

Was Monday really the hottest September day ever in Boulder?

September 6, 2019 / BoulderCAST Team

Labor Day 2019 was Denver’s first 100-degree day ever to occur in September. It was also the latest 100-degree day observed, remarkably by more than two full weeks. The previous record high for September 2nd was 95 degrees. On Monday, this temperature was eclipsed before the lunch hour, with the prior record eventually being obliterated by 5 degrees later in the afternoon. The city of Boulder officially hit the century mark on Monday, too. The extreme heat had impressive historical significance here as well, with one small asterisk. Unlike Denver, Boulder actually only tied all of the existing records, as 100 degrees had already been observed on the very same day back in 1983. We investigate the validity of the triple digit observation this week and the one more than three decades ago.

August 2019 Outlook: A lingering monsoon and not too hot

August 1, 2019 / BoulderCAST Team

It’s hard to believe that August is now upon us! Where is the summer going? June and the first half of July were cooler than normal with summer barely making an appearance. The heat has really ramped up over the last three weeks though, including a ten-day stretch of 90-degree weather in Boulder. Should we expect more of the same in August? Read on as we examine Boulder’s climatology and consider the current state of the atmosphere to give our outlook for the next month.

Will monsoon season arrive late this year to Colorado?

June 20, 2019 / Ben Castellani

Monsoon lovers may have to wait awhile for our daily dosage of summer-time thunderstorms. Mid and long-range weather models predict a delay in the onset of monsoon season across the American Southwest. We discuss why this won’t necessarily impact Colorado all that much, at least compared to other states such as Arizona.

A quick look at the upcoming weather for May

May 2, 2019 / Ben Castellani

We’ve entered the month of May and Spring is now in full-swing. We review May’s climatology and highlight a few aspects of the weather to watch in what is typically our gloomiest month of the year.