Heat stress in Aurora
High-plains sun at altitude on Denver's eastern edge: hot, dry afternoons push heat stress above what the mild air suggests.
Light precautions for intense activity. Keep water handy.
Wet-bulb globe temperature via the Liljegren (2008) method. This page is cached and refreshes in the background, so the live badge below can be a few minutes ahead of it.
View Aurora on the live mapReading heat stress in Aurora
Wet-bulb globe temperature (WBGT) is the heat measure that actually tracks danger to the body. Unlike the plain air temperature on your phone, it folds in humidity, wind, and direct sun: the factors that decide whether your sweat can still cool you. It’s the standard the military, athletic associations, and occupational-safety bodies use to call when outdoor activity is no longer safe.
That matters in Aurora because high-plains sun at altitude on Denver's eastern edge: hot, dry afternoons push heat stress above what the mild air suggests. The number above is the live outdoor WBGT for the city right now; tap through to the live map to inspect any neighborhood, scrub the forecast hour by hour, and see the 7-day outlook.
How hot Aurora usually gets
Across 2015–2024, Aurora averaged a 86°F daily high in summer: 94th hottest of the 174 metros we track, and July is typically the warmest month.
Summer runs warm rather than extreme: about 33 days a year reach 90°F, and 100°F is essentially unheard of.
At about 45% summer humidity, the air is damp enough to blunt how well sweat cools you on the worst afternoons.
A bad day runs well past a normal one, with 101°F recorded against a 86°F summer average.
Daily high temperatures and humidity from ERA5 reanalysis, 2015–2024 (hottest day in the sample: 2024-07-12). These are climate averages for context: the reading at the top of this page is the live one.
For school sports, CHSAA (Colorado High School Activities Association) publishes CHSAA Sports Medicine Advisory Handbook: Heat Illness / Monitoring Environment, which uses wet-bulb globe temperature. Colorado’s activity zones appear beside the live reading in the app. Our Colorado heat policy page has the details, the source and the date we last checked it.
Heat in Aurora: common questions
How hot does it usually get in Aurora?
Across 2015–2024, Aurora averaged a 86°F daily high through summer, with about 33 days a year at or above 90°F. July is typically the hottest month, and the hottest day in that sample reached 101°F. Figures are from ERA5 daily reanalysis.
When is the hottest time of year in Aurora?
July has the highest average daily high in Aurora. Summer humidity averages about 45%, enough to blunt how well sweat cools you on the hottest afternoons. Use the forecast on this page to plan around the specific days that matter.
Does Colorado have a heat policy for school sports?
CHSAA (Colorado High School Activities Association) publishes CHSAA Sports Medicine Advisory Handbook: Heat Illness / Monitoring Environment, which uses wet-bulb globe temperature. Colorado’s activity zones appear beside the live reading in the app. Our WBGT is a modeled estimate rather than the on-site device reading a policy may call for, so check the association's own document for current requirements.
What is the WBGT in Aurora right now?
The reading at the top of this page is the current wet-bulb globe temperature for Aurora, Colorado, computed from live weather by the Liljegren (2008) method and labeled with how recently it updated. For an exact reading at your own neighborhood, plus an hour-by-hour forecast, open the live map.
Why is WBGT more useful than the temperature for Aurora?
Air temperature ignores humidity, wind, and sun: the things that decide whether heat is dangerous. Aurora's climate (high-plains sun at altitude on Denver's eastern edge: hot, dry afternoons push heat stress above what the mild air suggests.) is exactly why a single "feels-like" or thermometer reading can understate the real risk. WBGT captures all of it in one number.
When is heat most dangerous in Aurora?
July is the peak month in Aurora, and within a day heat stress is highest in the early-to-mid afternoon when sun load is greatest. About 33 days a year reach 90°F, so most of the risk sits in a handful of afternoons rather than across the whole season. Use the forecast on this page to find the window that works.
Put Aurora’s live heat stress on your site
A self-updating WBGT badge for schools, teams, camps, and local sites: it always shows the current reading and links back here.
<iframe src="https://wetbulbtracker.com/embed/aurora-co" width="340" height="150" style="border:0" title="Live WBGT: Aurora, CO" loading="lazy"></iframe>Paste it into any website. The badge updates itself and links back here. Add ?theme=light for light sites.