The month of January offered a bit of a mixed bag of weather, showcasing the kinds of extremes our weather is known for. While we saw a period of bitter cold, the month ended with a string of mild days.

The first few days of the month were nice enough, with calm, dry conditions and temperatures above normal. From there, we entered a period dominated by colder than normal mercury readings. Most notable, Arctic air that arrived on the 12^th and sent the thermometer down.

• January 2024 in pictures – view the monthly photo slideshow

The following three days saw highs only in the single digits and four mornings with below zero lows. During that period we also received our most notable snowfalls of the month although they did not amount to much. Thornton received 1.8 inches on the 13^th and 2.5 inches on the 15^th.

The last half of the month saw things turn warmer with above normal readings for the final 10 days of the month. The last four days were very nice with readings of 60+ degrees.

In the end, Thornton’s January 2024 average temperature came in at 28.7 degrees. That was 1.9 degrees below our running 18-year average for January of 30.6 degrees. Temperatures ranged from a high of 62.5 degrees on the 28^th down to a low of -12.2 degrees on the 16^th.

Out at Denver International Airport where the Mile High City’s official measurements are taken, they saw an average temperature for the month of 28.2 degrees. This was well below their long term January average of 31.7 degrees.

January is rarely a wet month and it was not in 2024. Thornton saw a mere 0.25 inches of snowmelt. This was a good bit below our January average of 0.42 inches.

Denver received more precipitation than us, but not by much. They saw 0.28 inches in their bucket, a good bit below their January average of 0.38 inches.

Snowfall for the month was respectable but as indicated above, dry. Thornton had a January total of 5.4 inches. This was 0.9 inches below our 18-year average for January of 6.3 inches.

Out at the airport, Denver saw less than us recording only 3.6 inches. This was well below the Mile High City’s January average of 6.4 inches.

Click here to view Thornton’s complete January 2024 climate summary report.