Thornton, CO Weather


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The most pleasant months of the year for Thornton are September, June and May. In Thornton, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Thornton with an average high temperature of 90.1°, which ranks it as warmer than most places in Colorado. March is the snowiest month in Thornton with 8.9 inches of snow, and 9 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Thornton, CO

9 AM PST

Mostly Sunny then Slight Chance Showers And Thunderstorms

64°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayMostly Sunny then Slight Chance Showers And Thunderstorms76° / 48°ENE 5 to 13 mph
FridayMostly Cloudy then Chance Showers And Thunderstorms66° / 44°NW 10 to 15 mph
SaturdayRain50° / 40°NNW 6 to 20 mph
SundayShowers And Thunderstorms Likely57° / 39°NNE 7 to 10 mph
MondaySunny69° / 44°WSW 7 to 12 mph
TuesdaySunny75° / 48°S 8 to 12 mph
WednesdayMostly Sunny then Slight Chance Showers And Thunderstorms78° / 50°SSE 7 to 10 mph

Weather Highlights

Summer High: the July high is around 90 degrees
Winter Low: the January low is 18
Rain: averages 16 inches of rain a year
Snow: averages 46 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Thornton area is 8.5 (10=best), which means it is more comfortable than most places in Colorado.

8.5 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January47° 18°
February48° 20°
March56° 27°
April63° 34°
May73° 44°
June83° 53°
July90° 59°
August88° 57°
September79° 48°
October67° 36°
November54° 25°
December45° 17°
Hot, Freezing, Rainy, Snowy Days: Thornton
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03044
February02654
March02375
April01283
May1190
June8080
July17080
August12080
September4160
October0951
November02354
December03044

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Thornton
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Good place. Very suburbany (similar to the Springs). The houses are very small and old and yet still very expensive (albeit cheaper than southern Denver). Actually lots  More

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Over 4 years ago

I like Denver metro, but some cities aren’t too great. Thornton being one of them. Moved here because of highway access, and convenience to DIA for business travel. Am  More

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Over 9 years ago

The quality of life here in not good. The traffic is bad all the time. To try to get to the mountains takes forever! Also most lakes along the front range you can't even  More

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