Temperatures and precipitation ended up about as close to normal as possible for July in Boulder. The month began active with numerous severe weather outbreaks, some of which produced landspout tornadoes in parts of Denver. The last few weeks turned up the heat with a total of fifteen 90-degree days during the month. Here’s a quick and colorful graphical recap of our weather during July and how it relates to climatology.
July 2023 Recap Graphics:
How does July 2023 fit into the last 74 years?
How does July 2023 fit into the last 12 months?
2023 90° Day Tracker
Summer 2023 “Monsoon” Rainfall Tracker
Our top posts of July 2023
July 2023 retold via our Twitter X timeline
Yet Another Active Week in Colorado Weather! We've got recold cold inbound, another wave of damaging hail, and an update on the delayed monsoon: https://t.co/T9lseZJBo8 #COwx #Hail #colorado #Denver #Boulder #DenverWeather pic.twitter.com/GWiU6E4cj4
— BoulderCAST Weather (@BoulderCAST) July 3, 2023
As we've said all along, today was never to be a complete wash out forecast. Go ahead and have your cookouts and launch those fireworks of questionable legality. Just plan for a storm or two through the evening, some with big hail. Too many cities pushing ejection buttons. #cowx
— BoulderCAST Weather (@BoulderCAST) July 4, 2023
💦New daily rainfall record has been set in #Boulder for July 5th: 0.49" (and counting)
Old record: 0.41" from 2010 #COwx
— BoulderCAST Weather (@BoulderCAST) July 5, 2023
#Boulder's official high was 71° for today, 2° shy of the coldest ever July 5th! 🥶
*This official value is a bit deceiving as it actually occurred at 6:01 PM on July 4th, just before the torrential rain arrived. The "real" daytime high today was a "frigid" 60°! #COwx pic.twitter.com/mArzGCU73R
— BoulderCAST Weather (@BoulderCAST) July 6, 2023
4th time this year that Denver is in Enhanced Risk for severe weather. The sun is shining, but still doesn't look like a great setup in our immediate area with big cap. Best chance of huge hail comes from 5-10PM this evening. Highest risk SE of Denver & off towards Kansas #COwx pic.twitter.com/3dA26OaSI8
— BoulderCAST Weather (@BoulderCAST) July 6, 2023
Three landspout touchdowns near east Aurora and DIA on Thursday. Otherwise, nothing across northeast Colorado. Impressive baseball- and softball-sized hail reported on the southeast Plains though! #COwx #tornado #hail #Colorado pic.twitter.com/TJDvWdxAE2
— BoulderCAST Weather (@BoulderCAST) July 7, 2023
🌪️ One last day of severe storms today before we transition to a hot/drier pattern which everyone has been waiting for! Storms today could produce 1 to 2" hail and weak landspout tornadoes. Best chance will be east of Interstate 25 anytime from Noon to 8PM! #COwx pic.twitter.com/NaHJFPh7SG
— BoulderCAST Weather (@BoulderCAST) July 8, 2023
This Week in Colorado Weather: HOT!🥵🌞
Get ready for summer! A largely hot and dry forecast will be in the cards this week as an anomalous ridge of high pressure develops to our south pumping in air from the Deserts: https://t.co/1uBP0HqGiK #COwx #Colorado #Denver #Boulder pic.twitter.com/TT96n0tHAO
— BoulderCAST Weather (@BoulderCAST) July 10, 2023
Canadian wildfire #smoke will be looming just off to the northeast of Colorado through Monday, but high pressure and northwest flow will keep it from moving our way 😎 #COWx pic.twitter.com/ensEkSBplX
— BoulderCAST Weather (@BoulderCAST) July 15, 2023
Mass of Canadian smoke across the Midwest showing up nicely on GOES-East this evening, along with a few severe thunderstorms in Colorado's Front Range #COWx #Denver #Colorado #smoke pic.twitter.com/W5bRC9V0in
— BoulderCAST Weather (@BoulderCAST) July 15, 2023
Just brutal heat out there today across the Southwest. Observed 125° in Death Valley, 120° Lake Havasu, 118°F in Phoenix, 117° in Palm Springs, and 115° in Las Vegas. A lesser-version of this heat comes our way Monday with record highs likely in the Front Range! #COWx #CAwx #AZwx pic.twitter.com/HEd3fLcKAK
— BoulderCAST Weather (@BoulderCAST) July 16, 2023
*NEW POST* This Week in Colorado Weather: Scorching heat followed by our first monsoonal surge, plus a risk of severe storms 🌡️➡️⛈️
Let’s take a look at what should be yet another interesting week: https://t.co/dUDt4Us1R3 #COwx #Boulder #Denver #Colorado #Monsoon #HeatWave pic.twitter.com/yXVYvQamoD
— BoulderCAST Weather (@BoulderCAST) July 17, 2023
Fun Fact: Eastern Colorado is one of a few places where the heat index (i.e. the “Feels Like” temperature) is actually lower than the real temperature due to our low humidity which allows for rapid evaporation of sweat 🥵 #COWx pic.twitter.com/qpHr7FJW9b
— BoulderCAST Weather (@BoulderCAST) July 17, 2023
Official high was 97F in #Boulder today, one degree shy of the record high for the date. Still the hottest day yet in 2023!
Fun fact: the record high today (98) is only 9 degrees above the average high (89), the smallest such difference of any day in the calendar year! #cowx pic.twitter.com/L3VcAPnzgP
— BoulderCAST Weather (@BoulderCAST) July 18, 2023
🌡️ Colorado is set to end July under another heat dome with 90s returning on Sunday. Several days next week are likely to push close to 100° in the Front Range #COwx pic.twitter.com/ZesMBhBX9p
— BoulderCAST Weather (@BoulderCAST) July 20, 2023
This Week in Colorado Weather: Blazing heat for a few days, but #monsoon moisture increases through the week bringing cooler temperatures & slightly better chances of late-day storms🌡️⛈️
Here's the latest: https://t.co/j8RWlXS0Qq #COwx #Colorado #Denver #Boulder #DenverWeather pic.twitter.com/CQh9tnlUwA
— BoulderCAST Weather (@BoulderCAST) July 24, 2023
Official high was 98 today, one degree shy of record high
There was also a trace of rain making for a seventh consecutive day with rainfall reported #cowx https://t.co/XbMEOBaL2S— BoulderCAST Weather (@BoulderCAST) July 26, 2023
⚠️ 4PM: Damaging hail heading for #Boulder! Bunker down! #cowx pic.twitter.com/W7uqpgyiOp
— BoulderCAST Weather (@BoulderCAST) July 28, 2023
⚠️Heads Up! It is a quiet start this morning, but a drenching evening is shaping up across the Front Range! Look for widespread monsoon storms developing from ~5PM-Midnight. Locally heavy rainfall will cause flash flooding with burn scars at the highest risk! 🌊⛈️#COwx #Monsoon pic.twitter.com/28ydXTP5ts
— BoulderCAST Weather (@BoulderCAST) July 31, 2023
Boom! https://t.co/XKZupSVPXT
— BoulderCAST Weather (@BoulderCAST) August 1, 2023
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