Des Moines finally gets a hard freeze – one of the latest in fall history
Our first 28-degree low arrived weeks later than usual.
Our first 28-degree low arrived weeks later than usual.
Our first 28-degree low arrived weeks later than usual.
Great news for anyone still dealing with pesky bugs that just haven't died yet – the Des Moines area finally got a hard freeze.
A "hard freeze" commonly refers to temperatures of 28 degrees or colder.
Temperatures in the metro finally hit that mark Friday night, eventually bottoming out at 25 degrees early Saturday morning.
That's extremely late in the season.
Oct. 28 is the median date for Des Moines' first hard freeze of fall in the most recent 30-year period.
Nov. 22 is nearly four weeks behind schedule. It's also the second latest hard freeze on record.
Latest hard freezes in Des Moines
- Nov. 26, 2009
- Nov. 22, 2024
- Nov. 20, 2015
- Nov. 19, 2016
- Nov. 17, 1902
Records in Des Moines date back to the 1870s.
Fall freezes trending later
The previous list showed an interesting statistic. Four of the five latest hard freezes in the Des Moines area happened in the last 15 years.
Over the last several decades, central Iowa has had to wait longer each fall for temperatures to drop to 28 degrees.
For example, from 1961-1990, Des Moines' first hard freeze usually occurred around Oct. 24.
Fast forward to 1991-2020, and that date has shifted back to Oct. 28.
Four days seem insignificant, but it's not when you're dealing with 30-year averages.