Oct 27, 2025 - News
Colorado's first freezes are coming later in the year
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This year's first freeze arrived two weeks later than normal, and fresh data shows that's the new norm.
Why it matters: It's another indication of fall warming amid climate change, which affects farmers, gardeners and allergy sufferers.
State of play: Denver saw its first freezing temperatures Oct. 19 when lows reached 32 at the airport.
- The city usually gets the first freeze around Oct. 7. "We had to wait another 12 days for the first freeze," Fox31 meteorologist Greg Perez says.
By the numbers: Compared to 1970, the first freeze is arriving five days later in Denver, according to a new report from Climate Central, a climate research group.
- In Colorado Springs, freezing temperatures now happen a week later.
Yes, but: In Grand Junction, the first freeze lands four days sooner compared to 1970.