Thornton (CO) Weather and Climate: A Comprehensive Guide
Thornton experiences great temperature shifts.
The city's weather can transition from very warm days
to cold weather.
It's weather is marked by below-average rain/snowfall.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
The climate in Thornton is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 32°C in July to a chilly 7°C in the coolest month, December.
Nights are cooler, with lows often dropping to around -8°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Thornton maintains relatively dry conditions year-round, recording average annual precipitation of 424 mm. The climate in Thornton shows significant variation throughout the year. Expect moderate rainfall in May, with an average of 72 mm of precipitation over 12 rainy days. In contrast, January offers drier and sunnier days, with around 12 mm of snow/rainfall over 4 snowy/rainy days. For more details, please visit our Thornton Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Thornton serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.8 hours of sunshine daily, and embrace the darker days in November, offering only 6.5 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is moderate throughout the year in Thornton.
The city experiences its highest humidity in December, reaching 56%. In July, the humidity drops to its lowest level at 46%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The mean wind speed varies between 4 m/s and 5 m/s throughout the year. It is lowest in January, February, May, June, July, August, September, October, November and December and highest during March and April.
The mean monthly wind speed over the year (meters per second)
broken clouds and no rain broken clouds and no rain partly cloudy and no rainForecast for Thornton (CO)
5 m/s
4 m/s
4 m/s
The best time of year to visit Thornton in the United States of America
Other facts from our historical weather data:The hottest season / summer takes place in June, July, August and September.
Yes, the months of January and November are very dry.
July has an average maximum temperature of 32°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 7°C.
May tops the wettest month list with 72 mm of rainfall.
January is the driest month with 12 mm of precipitation.
July is the sunniest month with an average of 323 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
