October weather forecast
Grand Canyon National Park, AZ

The famed Horseshoe bend at the iconic Grand Canyon National Park, Arizona
The famed Horseshoe bend at the iconic Grand Canyon National Park, Arizona

Weather in October

October, like September, in Grand Canyon National Park, Arizona, is another warm autumn month, with an average temperature fluctuating between 81°F (27.2°C) and 55°F (12.8°C).

Temperature

In October, the average high-temperature drops from a hot 93°F (33.9°C) in September to a warm 81°F (27.2°C). The average low-temperature, in Grand Canyon National Park, is 55°F (12.8°C).

Rainfall

In Grand Canyon National Park, Arizona, during 2 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Grand Canyon National Park, during the entire year, the rain falls for 33 days and collects up to 9.69" (246mm) of precipitation.

Snowfall

February through November are months without snowfall in Grand Canyon National Park.

Daylight

The average length of the day in October is 11h and 15min.
On the first day of the month, sunrise is at 6:23 am and sunset at 6:12 pm. On the last day of October, in Grand Canyon National Park, sunrise is at 6:50 am and sunset at 5:33 pm MST.

Sunshine

In October, the average sunshine is 9h.

UV index

The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in October transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in October in Grand Canyon National Park?

In October, in Grand Canyon National Park, Arizona, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 55°F (12.8°C).

How many days does it rain in October in Grand Canyon National Park?

In Grand Canyon National Park, in October, during 2 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

When it does not snow in Grand Canyon National Park?

In Grand Canyon National Park, snow does not fall in February through November.

How many hours of daylight does Grand Canyon National Park have in October?

The average day length in October in Grand Canyon National Park, Arizona, is 11h and 15min.

When is the sunrise / sunset in October in Grand Canyon National Park?

On the first day of October in Grand Canyon National Park, Arizona, sunrise is at 6:23 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 5:33 pm MST.

How long on average sun shines in October in Grand Canyon National Park?

In Grand Canyon National Park, Arizona, the average sunshine duration in October is 9h.

What is the UV index intensity in October in Grand Canyon National Park?

The average daily maximum UV index in October is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average rainfall days
Average snowfall
Average sunshine
Average UV index

Average temperature in October
Grand Canyon National Park, AZ

Average temperature in October - Grand Canyon National Park, AZ
  • Average high temperature in October: 81°F

The warmest month (with the highest average high temperature) is July (104°F).
The months with the lowest average high temperature are January and December (55°F).

  • Average low temperature in October: 55°F

The month with the highest average low temperature is July (74°F).
The coldest month (with the lowest average low temperature) is January (35°F).

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Average rainfall in October
Grand Canyon National Park, AZ

Average rainfall in October - Grand Canyon National Park, AZ
  • Average rainfall in October: 0.9"

The wettest month (with the highest rainfall) is August (1.5").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in October
Grand Canyon National Park, AZ

Average rainfall days in October - Grand Canyon National Park, AZ
  • Average rainfall days in October: 2 days

The month with the highest number of rainy days is August (5 days).
The months with the least rainy days are May and June (1 days).

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Average snowfall in October
Grand Canyon National Park, AZ

Average snowfall in October - Grand Canyon National Park, AZ
  • Average snowfall in October: 0"

The months with the highest snowfall are January and December (0.1").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average daylight in October /
Average sunshine in October
Grand Canyon National Park, AZ

Average daylight in October / Average sunshine in October - Grand Canyon National Park, AZ
  • Average daylight in October: 11h and 15min

The month with the longest days is June (Average daylight: 14h and 35min).
The month with the shortest days is December (Average daylight: 9h and 45min).

  • Average sunshine in October: 9h

The month with the most sunshine is June (Average sunshine: 13h).
The months with the least sunshine are January and December (Average sunshine: 7h).

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Average UV index in October
Grand Canyon National Park, AZ

Average UV index in October - Grand Canyon National Park, AZ
  • Average UV index in October: 5

The months with the highest UV index are June and July (UV index 11).
The month with the lowest UV index is December (UV index 2).

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