August 2023 ended up warmer and wetter than normal in Boulder — an uncommon pair of outcomes indeed. The summer monsoon failed to produce consistent precipitation across the state throughout the whole month (woefully dry in the middle), but most areas made out alright with drought still thankfully absent from eastern Colorado. The month had 14 90-degree days bringing the total count to 30 days year-to-date. Elsewhere, a DVD-sized hailstone that fell in far eastern Colorado was confirmed to be a new state record. Here’s a quick and colorful graphical recap of our weather during August and how it relates to climatology.
August 2023 Recap Graphics:
How does August 2023 fit into the last 74 years?
How does August 2023 fit into the last 12 months?
Updated 2023 90° Day Tracker
Final Summer 2023 “Monsoon” Rainfall Tracker
Drought Tracker (as of August 29th)
Our top posts of August 2023
August 2023 retold via our Twitter X timeline
Rainfall totals from Tuesday were generally under 0.25" for the Metro area, though one strong cell produced flooding near Lyons and Berthoud Tuesday evening with >1.5" of rain falling in under an hour #COWx pic.twitter.com/fy2lGi1OSD
— BoulderCAST Weather (@BoulderCAST) August 2, 2023
⚠️ Heads up! The thunderstorm risk comes earlier today across the Metro area, roughly 1-4PM. Some storms may be severe, but things explode mainly out east. Keep an eye to the sky early this afternoon! Chance of rain isn't all that high today though. Many of us miss out #COWx pic.twitter.com/R95FrUXhZe
— BoulderCAST Weather (@BoulderCAST) August 3, 2023
2023 is doing work! ☔️ #COwx #Boulder pic.twitter.com/mf21fqFIta
— BoulderCAST Weather (@BoulderCAST) August 3, 2023
Fell on Highway 36 about 8 miles ENE of Kirk, Colorado just as tornado was developing @nwsgoodland #cowx pic.twitter.com/7qsvGpSKiR
— Dan Fitts (@Dan_Fitts) August 9, 2023
COLORADO MONSTER, massive #tornado near Yuma, CO earlier! #cowx @JordanHallWX @SevereStudios pic.twitter.com/aYjycduFV2
— Sierra Lindsey (@Sierra_Lindsey3) August 9, 2023
It was a beautiful morning on Mt. Sneffels near Ouray, Colorado. The monsoon storms moved in quickly in the afternoon though! ⛈️ #cowx #monsoon #14er #mountsneffels #ouray #Colorado pic.twitter.com/rf2I2xJDuk
— BoulderCAST Weather (@BoulderCAST) August 10, 2023
Another stunning afternoon at Hanging Lake near Glenwood Springs. Crowd was relatively minimal thanks to the permit system… #cowx #hanginglake pic.twitter.com/84efcGyEKW
— BoulderCAST Weather (@BoulderCAST) August 12, 2023
Happy Sunday! The stratus clouds are now solidly locked in until sometime Monday! #cowx #Boulder pic.twitter.com/6IQGml4d5X
— BoulderCAST Weather (@BoulderCAST) August 13, 2023
*Premium* Tuesday will be the first of MANY 90 degree days in a row: https://t.co/3ZBjA5UZ6o #COwx #Colorado #Boulder #Denver #Heatwave
— BoulderCAST Weather (@BoulderCAST) August 15, 2023
Colorado Forecast Update: Hurricane Hilary’s remnants, a bit of smoke, staying mostly dry, and continued near-record heat 🌡️📈: https://t.co/T4euXcxgRv #COwx #Denver #Boulder #Coloado #HeatWave #HurricaneHilary #Monsoon #Smoke #CAwx #NVwx #WAwx pic.twitter.com/gUDKVyOTcB
— BoulderCAST Weather (@BoulderCAST) August 17, 2023
Just another Friday in paradise! #boulder #cowx pic.twitter.com/co8YwPWcm8
— BoulderCAST Weather (@BoulderCAST) August 18, 2023
A Red Flag Warning, an Air Quality Alert and a Heat Advisory are in effect for #Denver on Monday. However, #Boulder only has the Air Quality Alert for elevated ozone… 🏭🚗 #COwx
— BoulderCAST Weather (@BoulderCAST) August 21, 2023
🌀 The remnants of once-Hurricane Hilary fully missed #Colorado and have been swept rapidly into the Pacific Northwest. However, the leftovers of another soon-to-be-named tropical system, seen here in the Gulf of Mexico, will be a player for us later in the week! #COwx pic.twitter.com/N4IhQ1vViA
— BoulderCAST Weather (@BoulderCAST) August 21, 2023
🥵 For the second time in three days, #Boulder broke a daily record high temperature on Monday. We hit 98°F, eclipsing the prior record for August 21st of 97° set in 1960! #COwx pic.twitter.com/xAMHZqAoaS
— BoulderCAST Weather (@BoulderCAST) August 22, 2023
🌀 Nice spin to residual low pressure from Harold, now located over northeast Arizona. It will slowly be migrating into Colorado over the next 24 hours! #COwx #AZwx pic.twitter.com/EFnFXRdQpS
— BoulderCAST Weather (@BoulderCAST) August 24, 2023
⚠️ Flood Watch posted! It's effect from Friday AM to Saturday AM for the Front Range 🌊
Still this isn't a true upslope storm — there will be winners & losers due to the scattered nature of the t-storms. The ones that hit will hit HARD though over the next 36 hours! #COwx pic.twitter.com/ZPFkPbxRbU
— BoulderCAST Weather (@BoulderCAST) August 24, 2023
Still a good deal of uncertainty in how this rainfall event plays out through Saturday morning. Most of us will probably land between 0.75" and 1.5" of rainfall, with locally higher (and lower) totals. Won't be surprised to see 2-4" in hardest hit locations, though #COwx pic.twitter.com/aioFEQQVfP
— BoulderCAST Weather (@BoulderCAST) August 25, 2023
Right now from the summit of Bear Peak in #Boulder! 💨〰️☔ #cowx pic.twitter.com/E6LECw2ARx
— BoulderCAST Weather (@BoulderCAST) August 25, 2023
Fact: There has never been a hurricane inside the boundaries of Colorado in recorded history. https://t.co/aj7CsHUClj
— BoulderCAST Weather (@BoulderCAST) August 29, 2023
We have landfall! #flwx #idalia pic.twitter.com/1Thq4c8mqd
— BoulderCAST Weather (@BoulderCAST) August 30, 2023
Autumn is nearing, but we're staring down yet another lengthy heatwave. Monsoon moisture returns this weekend, but mainly stays across western Colorado. Plus Category 3 Idalia has made landfall this AM. This & more in today's *Premium* discussion: https://t.co/wnpWAo2bF6 #Cowx
— BoulderCAST Weather (@BoulderCAST) August 30, 2023
🥵 Up to 90°F at 12PM in #Boulder, 30th 90° day of the year. Our summers are getting hotter… #COWx pic.twitter.com/IL4Ana1EnS
— BoulderCAST Weather (@BoulderCAST) August 31, 2023
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