When Can Cheyenne Expect Its First Freeze?
It's been a warm month in Cheyenne but it won't be long before the first freeze of the season arrives.
According to 1991-2021 statistics from the National Weather Service in Cheyenne, the average date of the first freeze in the capital city is Sept. 29.
The earliest first freeze over the last 30 years was Sept. 7, 2020, and the latest was Oct. 25, 2010.
Last year's first freeze didn't occur until Oct. 12, and, despite the recent cooldown, it looks like this year's first freeze may hold off until later in October as well.
The NWS says "increased cloud cover and moisture should keep the nighttime temperatures fairly warm through early next week, but uncertainty increases significantly after that."
8PM 9/28 - We are starting to get into the time of year where temperatures below freezing are increasingly likely. While a few locations (including Laramie) briefly dropped below freezing during the cold snap on September 11th/12th, most locations haven't seen a freeze since the spring! Here's a look at some statistics for when we usually see the first freeze of the fall at a few locations. In the last 30 years, the first freeze comes right around now on average for Cheyenne and Scottsbluff, but can vary widely from early September to late October. Looking ahead, increased cloud cover and moisture should keep the nighttime temperatures fairly warm through early next week, but uncertainty increases significantly after that. Are you looking forward to the chill or holding out for a few more weeks of the growing season?