Grand Junction weather in September (Colorado, United States of America)
Planning a trip to Grand Junction in September? Check out this comprehensive weather guide.
In Grand Junction the weather in September is generally perfect, with high temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 28°C. But by evening, they drop to around 12°C.
Grand Junction in September usually receives moderate rainfall, averaging around 32 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. When we look at the climate data from the last 30 years, we can expect around 7 days of rain.
The city usually sees around 293 hours of sunlight, indicating many sunny days.
If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Grand Junction. April, May, June, August and September typically offer the most agreeable circumstances. On the other hand, January and December tend to be characterized by conditions that may not be as optimal.
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
23%
Precipitation
32 mm
Rainy days
7 days
Humidity
39%
Windspeed
14 km/h
Sunshine
293 hours
Percentage Sunshine
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 Grand Junction 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 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 climate conditions. Find out where to go with our weather planner.
