Denver's history of 90-degree days

We're four days into a stretch of 90° heat, marking the hottest week yet this year in Denver.

Driving the news: Highs are expected to reach at least 90° every day through at least Thursday.

• Yes, but: That's still short of the records in 2012 and 2008, when the National Weather Service counted 24 straight days of 90s both years.

Flashback: Last year, Denver broke the annual record with 75 90° days. The previous record was set in 2012 at 73 days.

Of note: Unlike the East Coast — where a heatwave is defined as three or more days of 90° heat — our city has no definition, 9News reports.

• Now meteorologist Chris Bianchi is asking how you think heatwaves should be defined in Denver through a survey on Twitter.