June 2023 dropped more than 5″ of rain on Boulder for the second straight month, concluding as the 4th wettest June since the late 1800s. Temperatures ended up nearly 4°F below normal as well, including a monthly minimum temperature of 42°F which occurred in the middle of the afternoon on June 12th as several inches of small hailstones lay melting on the ground. Other Front Range headlines in June included minimal Canadian wildfire smoke, the Highlands Ranch EF1 tornado, and the pummeling of giant hail at Red Rocks. Here’s a quick and colorful graphical recap of our weather during June and how it relates to climatology.
June 2023 Recap Graphics:
How does June 2023 fit into the last 74 years?
How does June 2023 fit into the last 12 months?
Our top posts of June 2023
June 2023 retold via our Twitter timeline
💦 The Front Range leading the country with the best chance to see above normal precipitation in June according to the @NWSCPC. Not surprising considering we are poised to receive 1-2" of rain in the first several days of the month, and #Boulder's June normal is only 1.94"! #COWx pic.twitter.com/Jxu0IoA1FL
— BoulderCAST Weather (@BoulderCAST) June 1, 2023
Upslope rains continue… #COwx pic.twitter.com/914VKSg389
— BoulderCAST Weather (@BoulderCAST) June 4, 2023
A definitively rainy, soggy, and foggy day in #Boulder! ☔ #cowx pic.twitter.com/e54M2d7Pwm
— BoulderCAST Weather (@BoulderCAST) June 4, 2023
Above the clouds or in the clouds? You decide! ☁️ #cowx #Boulder pic.twitter.com/GOiBmScogo
— BoulderCAST Weather (@BoulderCAST) June 5, 2023
The out-of-the-ordinary deep southeasterly flow which has been so prevalent over Colorado the last 10 days remains today. The clouds overhead now sure are wispy! 🥰#COwx pic.twitter.com/4RNLhoxMMA
— BoulderCAST Weather (@BoulderCAST) June 8, 2023
A few sprinkles today, but most of the storms missed #Boulder! #cowx pic.twitter.com/gn1Lr4IWIz
— BoulderCAST Weather (@BoulderCAST) June 11, 2023
Accumulating hail and heavy rain pummeling downtown #Boulder! #COwx pic.twitter.com/p4XnkZ1OKo
— BoulderCAST Weather (@BoulderCAST) June 12, 2023
The snow table doesn't usually serve much purpose in June, but here we are… #COWX #Boulder pic.twitter.com/VVv9Z9gPVV
— BoulderCAST Weather (@BoulderCAST) June 12, 2023
Classic Boulder! https://t.co/PgTiRa2DbE
— BoulderCAST Weather (@BoulderCAST) June 12, 2023
Heavy rain and melting hail brought air temperatures down to 44° in #Boulder earlier this afternoon, the coldest reading on June 12th since 2009 (which was a clear sky morning low, not a midday temperature!) #COwx pic.twitter.com/tXpm5HdYlL
— BoulderCAST Weather (@BoulderCAST) June 12, 2023
Brief heavy rain inbound, #Boulder! #COwx pic.twitter.com/IlNBg1maCN
— BoulderCAST Weather (@BoulderCAST) June 15, 2023
🌡️ARE YOU READY FOR THE HEAT? Today begins the streak of warm and more seasonal weather for Front Range Colorado! Though our average his this time of year is 83°F, #Boulder has had just three 80-degree days so far in 2023, the least amount through June 17th in 120 years! #cowx pic.twitter.com/joupnWgbP2
— BoulderCAST Weather (@BoulderCAST) June 18, 2023
Interesting to see the native prairie just as green as the irrigated farmland coming into DIA… #COwx pic.twitter.com/8xKJ1P7Tun
— BoulderCAST Weather (@BoulderCAST) June 20, 2023
The entire Metro area has been "upgraded" one risk category by the SPC just now. Denver's second Enhanced Risk day of 2023 is taking shape 3PM to Midnight. Expecting to see lots of hail (golf balls to tennis balls possible) and a few tornadoes! #COWx #Hail #Colorado #Tornado pic.twitter.com/QJ4kdOEsCq
— BoulderCAST Weather (@BoulderCAST) June 21, 2023
A Severe Thunderstorm Watch is in effect for expected fireworks with golf ball+ sized hail and isolated tornadoes the greatest risks. Main threat in Boulder is 3-9PM. In Denver it's 5PM-1AM. Protect your cars and gardens if possible! #COWX pic.twitter.com/jMEaDwEyge
— BoulderCAST Weather (@BoulderCAST) June 21, 2023
The shear number of discrete supercells across eastern Colorado as the sun goes down this evening is remarkable 😲🎇 #cowx pic.twitter.com/cAM2mWlWAM
— BoulderCAST Weather (@BoulderCAST) June 22, 2023
Tonight was the scariest night of my life. It started pelting people with hail at Red Rocks and my sister and I luckily found shelter under a sign. I am bleeding and have huge bumps on my head from the hail. Hoping everyone made it out safely. pic.twitter.com/jong1SBuYd
— nicole (@nikkitbfh) June 22, 2023
Highlands Ranch #tornado!
KFTG – Super-Res Velocity 1, 3:36 PM pic.twitter.com/phSssfoobC
— BoulderCAST Weather (@BoulderCAST) June 22, 2023
One supercell carved quite a path of destruction today! #COWx pic.twitter.com/2EyTgxCeZA
— BoulderCAST Weather (@BoulderCAST) June 23, 2023
🔥Today is the 11 year anniversary of the Flagstaff Fire in #Boulder. It was sparked by a monsoon lightning strike amidst a terrible statewide drought. In the end, the wildfire burned about 350 acres and forever changed the landscape of Bear and South Boulder Peaks! #COWx pic.twitter.com/Cl69x1bZPs
— BoulderCAST Weather (@BoulderCAST) June 26, 2023
🔥💨 Under Red Flag conditions,the #SpringCreekFire in western Colorado has exploded this afternoon. The high-altitude brown smoke plume is racing towards the #Boulder–#Denver Metro area and should be visible in the western and northwestern sky before sunset! #COwx #COonFire pic.twitter.com/T8e5W9kBkm
— BoulderCAST Weather (@BoulderCAST) June 27, 2023
There's a huge difference in fuel-moisture west to east across Colorado right now. The soggy spring east of the Continental Divide was not mirrored in the Western Slope. The drier last few months are contributing to the #SpringCreekFire and continued elevated fire danger. #COwx pic.twitter.com/fSGuxE26nH
— BoulderCAST Weather (@BoulderCAST) June 27, 2023
🥵 Well, we made it! 90° on the dot was the official high in #Boulder on Tuesday, the first time in the 90s in more than nine months. This is tied for the 23rd latest first 90 degree day (data back to 1893) and is the latest timing since 2014! #COWx pic.twitter.com/FMAynW9bnC
— BoulderCAST Weather (@BoulderCAST) June 28, 2023
*Parts* of #Denver upgraded to Enhanced Risk by the SPC for the 3rd time in 2023. Big hail and tornadoes possible anywhere in our area from 2-7PM, the threat shifts further east through the evening.
Seems the orange region is missing a few vertices, but apparently not… #COWx pic.twitter.com/oGV5qka0Ab
— BoulderCAST Weather (@BoulderCAST) June 29, 2023
The usual interstate shenanigans on I-25 with cars blocking the interstate to park under the I-70 overpass to hide from hail! Southbound was completely blocked for a while… #COWx #DEnver pic.twitter.com/XinIt5bZ50
— BoulderCAST Weather (@BoulderCAST) June 29, 2023
Spread the word, share Colorado weather:
Go Premium, get all the perks.
Daily Forecast Updates
Get our daily forecast discussion every morning delivered to your inbox.
All Our Model Data
Access to all our Colorado-centric high-resolution weather model graphics. Seriously — every one!
Ski & Hiking Forecasts
6-day forecasts for all the Colorado ski resorts, plus more than 120 hiking trails, including every 14er.
Smoke Forecasts
Wildfire smoke concentration predictions up to 72 hours into the future.
Exclusive Content
Weekend outlooks every Thursday, bonus storm updates, historical data and much more!
No Advertisements
Enjoy ad-free viewing on the entire site.
