Best time to visit Grand Junction

Find the best time to visit Grand Junction and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

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 time to visit Grand Junction is May and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 2°C maximum daytime temperature in January in Grand Junction2
    Jan
  • 8°C maximum daytime temperature in February in Grand Junction8
    Feb
  • 13°C maximum daytime temperature in March in Grand Junction13
    Mar
  • 19°C maximum daytime temperature in April in Grand Junction19
    Apr
  • 24°C maximum daytime temperature in May in Grand Junction24
    May
  • 31°C maximum daytime temperature in June in Grand Junction31
    Jun
  • 34°C maximum daytime temperature in July in Grand Junction34
    Jul
  • 32°C maximum daytime temperature in August in Grand Junction32
    Aug
  • 27°C maximum daytime temperature in September in Grand Junction27
    Sep
  • 20°C maximum daytime temperature in October in Grand Junction20
    Oct
  • 11°C maximum daytime temperature in November in Grand Junction11
    Nov
  • 4°C maximum daytime temperature in December in Grand Junction4
    Dec

Hours of Sunshine (daily)

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 34°C with high heat and humidity.

Which month has the most rain in Grand Junction?

In terms of rainfall, October is usually the wettest month in Grand Junction with 25mm on average. There are normally 5 days in October with some rain.

When is it sunniest in Grand Junction?

The sunniest time of year in Grand Junction is normally June with bright sunshine on average for 81% of daylight hours; that's 12 hours of sunshine per day.

Best time to visit

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)

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