Thornton weather in September (Colorado, United States of America)
Curious about the September weather in Thornton? Here's what the weather might have in store during this month.
In Thornton the weather in September is generally perfect, with high temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 27°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 10°C.
Thornton in September usually receives moderate rainfall, averaging around 40 mm for the month. Typically around 6 days of rainfall is expected.
The city usually sees around 270 hours of sunlight, indicating many sunny days.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. May and September generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Thornton climate page with graphs.
Thornton, monthly averages in September
Min Temperature
10°C
Max Temperature
27°C
Chance of Rain
21%
Precipitation
40 mm
Rainy days
6 days
Humidity
50% *
Windspeed
14 km/h *
Sunshine
270 hours *
Percentage Sunshine
73% *
Where to go in the United States of America in September
Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Thornton in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Thornton.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
