Which is the hottest month in Grand Junction?

The hottest time of year in Grand Junction is normally July. Expect maximum daytime temperatures to reach 31°C with moderate heat and humidity.

Which month has the most rain in Grand Junction?

In terms of rainfall, May is usually the wettest month in Grand Junction with 71mm on average. There are normally 10 days in May with some rain.

When is it sunniest in Grand Junction?

The sunniest time of year in Grand Junction is normally September with bright sunshine on average for 73% of daylight hours; that's 9 hours of sunshine per day.

Best time to visit Grand Junction

Q: When is the best time to visit Grand Junction?

The best times to visit Grand Junction, Colorado are in March, April, May, June, July, August, September and October Daily hours of sunshine = 8 hours or more.

The best times to visit Grand Junction, Colorado are in March, April, May, June, July, August, September and October based on our default weather conditions. Update your weather preferences to see which months best match.

Grand Junction by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Grand Junction?

The best times to visit Grand Junction, Colorado are in March, April, May, June, July, August, September and October based on the following average weather conditions.

Daily hours of sunshine = 8 hours or more [remove]

Change the criteria to reflect your weather preferences.

4
Jan
4.5
Feb
5
Mar
5
Apr
5
May
5
Jun
5
Jul
5
Aug
5
Sep
5
Oct
4
Nov
4
Dec

Change criteria

Hours of Sunshine (daily)

6
Jan
7
Feb
8
Mar
9
Apr
11
May
12
Jun
12
Jul
11
Aug
10
Sep
8
Oct
6
Nov
6
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Colorado (Grand Junction) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)