July Weather in Grand Junction

Last updated: March 2, 2024

The weather in Grand Junction, United States, during July is characterized by an average temperature of 25°C (77°F). Highs can soar to 37°C (98°F), while lows may dip to 12°C (53°F). Typically, the humidity level in Grand Junction throughout July hovers around 39%.

12°C (53°F)

Minimum temperature

25°C (77°F)

Average temperature

37°C (98°F)

Maximum temperature

39%

Humidity

Precipitation and Sunshine hours

In July, Grand Junction averages 34 mm (1.3 inches) of rainfall, typically over the course of 7 rainy days. The month enjoys an average of 14 hours 33 minutes of daylight, with the sun shining for approximately 12 hours 19 minutes each day. Additionally, there is a 55% probability of sunny days during this period.

34 mm (1.3 inches)

Precipitation

7 rainy days

Rainy days

12 hours 19 minutes

Sunshine hours

55%

Chance of sun

UV Index

In July, the UV Index in Grand Junction reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 9 11 12 12 10 7 5 2 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 25 min 30 min 45 min

Compare Grand Junction's Climate with Cities Worldwide