Weather At The Grand Canyon In October For Visitors

Cooler temperatures and perhaps even the first signs of snow at the rims can be seen in October, which is the Grand Canyon’s official start of fall. The backcountry (hiking, backpacking, and rafting) is at its peak because it’s the greatest month for such activities, although the crowds at the rims are thinner. While permits and Phantom Ranch reservations in the Canyon are exceedingly competitive, reservations at the rims are less difficult to obtain. The followings will tell you the weather at the grand canyon in October.

Weather In October

The daily high temperature drops 12 degrees Fahrenheit, from 70 to 58 degrees, rarely falling below 46 or above 78 degrees.

The daily minimum temperature dropped 9 degrees Fahrenheit, from 37 to 28 degrees, rarely falling below 19 or above 46 degrees.

For reference, The Fourth of July is the hottest day of the year, and temperatures in the Grand Canyon typically range from 47 degrees to 84 degrees, while January 4, the coldest day of the year, ranges from 16 degrees to 42 degrees.

Daylight In October

11 hours and 15 minutes per day on average in October

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

Sunshine In October

Sunlight hours per day in October: 9

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

Solar Energy In October

The total daily incident shortwave solar radiation that strikes the ground over a large area is covered in this section, taking into consideration seasonal variations in day length, the Sun’s position above the horizon, and absorption by clouds and other atmospheric components. UV and visible light both fall within the category of shortwave radiation.

In the month of October, the average daily incident shortwave solar energy in Grand Canyon decreased by 1.5 kWh, from 5.7 kWh to 4.2 kWh.

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Uv Index In October

October’s average UV index is 5.

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

Precipitation In October

A day that has at least 0.04 inches of liquid or liquid-equivalent precipitation is considered to be wet. In Grand Canyon, the likelihood of a rainy day in October is basically consistent, lasting at roughly 10% all month.

For comparison, the probability of a wet day is highest on August 4 at 27% and lowest on June 15 at 4% for the entire year.

In Grand Canyon, the likelihood of a day with only rain falls from 10% to 7% throughout the course of the month, while the likelihood of a day with both snow and rain is nearly constant at 1% and the likelihood of a day with only snow is essentially constant at 0%.

Humidity In October

The dew point serves as the foundation for determining the comfort level of humidity since it controls whether sweat will evaporate from the skin and cool the body. Higher dew points seem more humid, whereas lower dew points feel dryer. While the temperature may decrease at night, a humid day is generally followed by a muggy night because dew point changes more slowly than temperature, which frequently varies dramatically between night and day.

At Grand Canyon National Park Airport, the probability of a given day being humid is nearly zero throughout the month of October.

Clouds In October

In October, cloud levels increased at Grand Canyon National Park Airport, with the percentage of overcast or cloudy days increasing from 17 percent to 28 percent.

October 1 was the sunniest day of the month, with sunny days 83% of the time, mostly sunny, or partly cloudy.

For reference, February 19 was the most cloudy day of the year, with a 41 percent chance of being overcast or cloudy, while September 19 was the sunniest day of the year, with an 84 percent chance of being sunny, cloudy, or partly cloudy.

Wind In October

The wide-area hourly average wind vector (speed and direction) at 10 meters above the ground is covered in this section. Instantaneous wind speed and direction vary more considerably than hourly averages, and the wind experienced at any given site is strongly dependent on the local topography and other factors.

Throughout the month of October, the Grand Canyon’s average hourly wind speed remains almost steady, staying within 0.1 miles per hour of 7.1 miles per hour.

For comparison, the daily average wind speed on April 10, the windiest day of the year, is 9.5 miles per hour, while on August 13, the calmest day of the year, it is 6.0 miles per hour.

Rainfall In October

We display the rainfall accumulated over a sliding 31-day period centered on each day in order to highlight variety throughout the month rather than just the monthly average.

At Grand Canyon National Park Airport, the average sliding 31-day rainfall in October is relatively steady, staying about 0.8 inches the entire month and infrequently rising above 2.2 inches.

Snowfall In October

There is typically no snow in October.

January and December have the most snowfall (0.1″). February, March, April, May, June, July, August, September, and November are the months with the least amount of snowfall (0″).

Topography In October

Grand Canyon’s geographic coordinates are 36.054 degrees latitude, -112.139 degrees longitude, and 6,890 feet height for the purposes of this report.

Extreme height changes occur in the geography within two miles of Grand Canyon, with a maximum elevation shift of 3,451 feet and an average elevation of 6,465 feet above sea level. Additionally, there are significant height changes within ten miles (5,846 feet). Additionally, there are significant elevation fluctuations within 50 miles (8,635 feet).

Within two miles of the Grand Canyon, trees and shrubs make up 82% of the area, while shrubs make up 52% of the area within ten miles and 75% of the area within fifty miles (19 percent ).

Summary

The North Rim is still open (although technically it closes at the first serious snowfall after October 15, which is typically in November), Rim to Rim hiking is at its best, and rafting is still fantastic. These are just a few of the benefits of visiting in October. The temperatures inside the Canyon are becoming ideal for hiking and backpacking.