October Weather in Grand Junction

Last updated: March 2, 2024

The weather in Grand Junction, United States, during October is characterized by an average temperature of 9°C (49°F). Highs can soar to 25°C (78°F), while lows may dip to -7°C (19°F). Typically, the humidity level in Grand Junction throughout October hovers around 72%.

-7°C (19°F)

Minimum temperature

9°C (49°F)

Average temperature

25°C (78°F)

Maximum temperature

72%

Humidity

Precipitation and Sunshine hours

In October, Grand Junction averages 55 mm (2.2 inches) of rainfall, typically over the course of 8 rainy days. The month enjoys an average of 11 hours 7 minutes of daylight, with the sun shining for approximately 8 hours 58 minutes each day. Additionally, there is a 57% probability of sunny days during this period.

55 mm (2.2 inches)

Precipitation

8 rainy days

Rainy days

8 hours 58 minutes

Sunshine hours

57%

Chance of sun

UV Index

In October, the UV Index in Grand Junction reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 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 0 1 2 3 5 6 7 6 5 3 1 1 0
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Grand Junction's Climate with Cities Worldwide