Grand Junction Weather in September

September in Grand Junction sees daytime temperatures around 28°C (82°F) and lows of 12°C (54°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Grand Junction in September

Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. Historically, approximately 7 days this month are expected to have rain, averaging 32 mm (1.3 in). When rain does fall, showers tend to be light and brief. Most days will be dry.

Temperature in Grand Junction in September

September is one of the better months to visit Grand Junction. Expect 28°C (82°F) during the day and 12°C (54°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Grand Junction in September

The days are predominantly sunny, with an estimated total of around 293 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Grand Junction in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

So this is a great month to visit if you prefer dry days with pleasant temperatures.