Category: Climatology (Page 38 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.

Mid-Summer Monsoon Update: Off to a slow start, but that is starting to change!

August 2, 2022 / BoulderCAST Team

After one of the driest starts to the summer monsoon season on record across the Front Range, things have started to change somewhat following a surge of monsoon rainfall in the final days of July. We review what has transpired so far this summer, look at where 2022 fits into the historical monsoon climatology, and discuss the temperature and precipitation outlook for the month of August.

This week in Colorado weather: August 1, 2022

August 1, 2022 / Ben Castellani

If you enjoyed the hot and mostly dry weather that dominated the month of July in the Front Range, you’re going to absolutely love the first week of August! High pressure will rebuild over the area this week keeping temperatures well above normal and acting to suppress thunderstorm development most days. The best chance of rain comes on Tuesday, but we also are watching the upcoming weekend when the remnant tropical moisture from Hurricane Frank reaches the area. Let’s take a look at the weather week ahead in Colorado!

Boulder surprisingly notched its first 100-degree day in over two years on Tuesday! Or did it?

July 20, 2022 / BoulderCAST Team

On a day which should have been slightly cooler than recent times on paper, Boulder officially reached 100 degrees Tuesday afternoon. However, other reliable weather sensors around the city came in several degrees cooler and more in-line with forecasts. We take a look at the temperatures measured around the area and weight on what will ultimately go down in the books as a record high temperature and the city’s first triple-digit reading in over two years.

This week in Colorado weather: July 18, 2022

July 18, 2022 / Ben Castellani

Another brutally hot week is expected across the Front Range with a ridge of high pressure staying the course over Colorado. With this, temperatures will remain above normal for the next six days or more, including a couple chances at reaching triple digits. Thunderstorms will be around throughout the week, but as usual they will be fairly spotty and will offer little reprieve from the ongoing heatwave and drought. A slight pattern shift early next week should revive the monsoon for the Desert Southwest, but whether that propagates into Colorado remains to be seen.

Back-to-back 100-degree days possible this weekend, more to come next week

July 8, 2022 / BoulderCAST Team

With the monsoon getting suppressed and a hot pattern taking hold this weekend, both Saturday and Sunday could get Boulder to the elusive 100-degree mark for the first time in nearly two years. We discuss the cause of this heatwave, how hot it will get around Boulder and Denver this weekend (and next week), and when we expect cooler temperatures to arrive.

June 2022 Graphical Weather Review: A month largely devoid of rainfall despite an early start to the monsoon

July 6, 2022 / BoulderCAST Team

June 2022 began soggy and snowy across the Front Range with a sizable precipitation event getting us off to a good start on the first of the month. However, the rest of the June was largely warm and dry despite an early start to monsoon season in the southwestern United States. Here’s a quick and colorful graphical recap of our weather during June and how it relates to climatology.

This week in Colorado weather: July 5, 2022

July 5, 2022 / Ben Castellani

We hope you had a great Fourth! The Southwest monsoon remains active through the middle part of the week with good chances for rain in Boulder and Denver, especially Tuesday and Wednesday. Unfortunately, the pattern shifts late in the week suppressing the flow of monsoon moisture into Colorado. This will cause drying for us, but also a spike into triple-digit temperatures for the weekend. Read on for our full outlook of the week and weekend ahead.

Summer 2022 Outlook: Monsoon season has begun early, but La Niña sticking around is worrisome for Colorado

June 29, 2022 / Ben Castellani

The arrival of the North American summer monsoon varies substantially from year to year, depending greatly on the weather patterns of Mexico, the southeast USA, and the tropical eastern Pacific Ocean. We don’t have to wonder anymore — the monsoon has already commenced in the last few days, about two weeks ahead of schedule. Hooray! We discuss the current state of the monsoon, what’s happening with that pesky La Niña, and what to expect in the coming months across Front Range Colorado.