Grand Junction weather in September (Colorado, United States of America)

How's the weather trend in Grand Junction as September approaches? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

For September, the weather in Grand Junction is generally perfect, featuring high temperatures and low rainfall. The temperature during the day can rise to approximately 28°C. At night, it falls to around 12°C.

Precipitation

Grand Junction in September usually receives low rainfall, averaging around 29 mm for the month. Climate statistics over the past 30 years suggest around 7 days of rain.

Average sunshine

The city usually sees around 293 hours of sunlight, indicating many sunny days.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Grand Junction. April, May, June, August, September and October typically offer the best circumstances. While January and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Grand Junction climate page with graphs.

 

Grand Junction, monthly averages in September

Min Temperature 12°C  

Max Temperature 28°C  

Chance of Rain 22%  

Precipitation 29 mm  

Rainy days 7 days  

Humidity 39% *  

Windspeed 14 km/h *  

Sunshine 293 hours *  

Percentage Sunshine *  

* Data from: Grand Junction, the United States of America (6 KM, 3 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

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.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Grand Junction.

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 travel conditions. Find out where to go with our weather planner.