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October Weather at Grand Canyon National Park Airport Arizona, United States

Daily high temperatures decrease by 12°F, from 70°F to 58°F, rarely falling below 46°F or exceeding 78°F.

Daily low temperatures decrease by 9°F, from 37°F to 28°F, rarely falling below 18°F or exceeding 46°F.

For reference, on July 3, the hottest day of the year, temperatures at Grand Canyon National Park Airport typically range from 47°F to 85°F, while on January 4, the coldest day of the year, they range from 16°F to 43°F.

Average High and Low Temperature in October at Grand Canyon National Park Airport

Average High and Low Temperature in October at Grand Canyon National Park AirportOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313110°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FSepNovOct 170°FOct 170°F37°F37°FOct 3158°FOct 3158°F28°F28°FOct 1166°FOct 1166°F33°F33°FOct 2162°FOct 2162°F30°F30°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in October at Grand Canyon National Park Airport

Average Hourly Temperature in October at Grand Canyon National Park AirportOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNovNowNowfreezingfreezingvery coldvery coldcoldcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Hacıbektaş, Turkey (6,851 miles away) is the far-away foreign place with temperatures most similar to Grand Canyon National Park Airport (view comparison).

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The month of October at Grand Canyon National Park Airport experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 18% to 28%.

The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 82% of the time.

For reference, on February 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 41%, while on September 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 84%.

Cloud Cover Categories in October at Grand Canyon National Park Airport

Cloud Cover Categories in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 182%Oct 182%Oct 3172%Oct 3172%Oct 1179%Oct 1179%Oct 2175%Oct 2175%NowNowclearmostly clearmostly cloudyovercastpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Grand Canyon National Park Airport, the chance of a wet day over the course of October is essentially constant, remaining around 10% throughout.

For reference, the year's highest daily chance of a wet day is 28% on August 3, and its lowest chance is 4% on June 14.

Over the course of October at Grand Canyon National Park Airport, the chance of a day with only rain decreases from 10% to 7%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in October at Grand Canyon National Park Airport

Probability of Precipitation in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%22%22%24%24%SepNovOct 111%Oct 111%Oct 3110%Oct 3110%Oct 1110%Oct 1110%Oct 219%Oct 219%NowNowsnowmixedrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during October at Grand Canyon National Park Airport is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 2.2 inches.

Average Monthly Rainfall in October at Grand Canyon National Park Airport

Average Monthly Rainfall in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inSepNovOct 10.9 inOct 10.9 inOct 310.6 inOct 310.6 inOct 110.8 inOct 110.8 inOct 210.7 inOct 210.7 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of October at Grand Canyon National Park Airport, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 5 minutes, implying an average daily decrease of 2 minutes, 9 seconds, and weekly decrease of 15 minutes, 5 seconds.

The shortest day of the month is October 31, with 10 hours, 42 minutes of daylight and the longest day is October 1, with 11 hours, 47 minutes of daylight.

Hours of Daylight and Twilight in October at Grand Canyon National Park Airport

Hours of Daylight and Twilight in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSepNovnightnightdaydayOct 111 hr, 47 minOct 111 hr, 47 minOct 3110 hr, 42 minOct 3110 hr, 42 minOct 1611 hr, 14 minOct 1611 hr, 14 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month at Grand Canyon National Park Airport is 6:24 AM on October 1 and the latest sunrise is 27 minutes later at 6:50 AM on October 31.

The latest sunset is 6:11 PM on October 1 and the earliest sunset is 38 minutes earlier at 5:33 PM on October 31.

Daylight saving time is not observed at Grand Canyon National Park Airport during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:12 AM and sets 14 hours, 36 minutes later, at 7:48 PM, while on December 21, the shortest day of the year, it rises at 7:35 AM and sets 9 hours, 43 minutes later, at 5:18 PM.

Sunrise & Sunset with Twilight in October at Grand Canyon National Park Airport

Sunrise & Sunset with Twilight in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSepNov6:24 AM6:24 AMOct 16:11 PMOct 16:11 PM6:50 AM6:50 AMOct 315:33 PMOct 315:33 PM6:32 AM6:32 AMOct 115:57 PMOct 115:57 PM6:41 AM6:41 AMOct 215:44 PMOct 215:44 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of October. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in October at Grand Canyon National Park Airport

Solar Elevation and Azimuth in October at Grand Canyon National Park AirportOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNov0010102020203030405000010102020303030405060NowNow
northeastsouthwest
Solar elevation and azimuth over the course of October 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for October 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in October at Grand Canyon National Park Airport

Moon Rise, Set & Phases in October at Grand Canyon National Park AirportOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 26:56 PMSep 26:56 PMSep 177:35 PMSep 177:35 PMOct 211:50 AMOct 211:50 AMOct 174:27 AMOct 174:27 AMNov 15:48 AMNov 15:48 AMNov 152:29 PMNov 152:29 PMNov 3011:22 PMNov 3011:22 PM5:32 AM5:32 AM6:59 PM6:59 PM6:30 PM6:30 PM6:49 AM6:49 AM6:17 AM6:17 AM6:10 PM6:10 PM5:24 PM5:24 PM6:51 AM6:51 AM7:03 AM7:03 AM5:29 PM5:29 PM5:03 PM5:03 PM8:13 AM8:13 AM6:57 AM6:57 AM4:38 PM4:38 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
1%5:20 AME5:48 PMW-11:36 AMS252,375 mi
2
0%6:17 AME6:10 PMW-12:14 PMS252,597 mi
3
1%7:13 AME6:33 PMWSW-12:53 PMS252,390 mi
4
4%8:11 AMESE6:57 PMWSW-1:34 PMS251,740 mi
5
9%9:10 AMESE7:26 PMWSW-2:18 PMS250,620 mi
6
15%10:12 AMESE8:00 PMWSW-3:05 PMS248,991 mi
7
23%11:14 AMESE8:40 PMSW-3:57 PMS246,822 mi
8
32%12:14 PMSE9:29 PMSW-4:52 PMS244,111 mi
9
42%1:11 PMSE10:27 PMSW-5:49 PMS240,903 mi
10
50%2:02 PMSE11:32 PMWSW-6:47 PMS237,309 mi
11
64%2:46 PMESE--7:44 PMS233,520 mi
12
75%-12:42 AMWSW3:23 PMESE8:39 PMS229,802 mi
13
85%-1:55 AMWSW3:56 PMESE9:31 PMS226,474 mi
14
92%-3:08 AMWSW4:26 PME10:22 PMS223,874 mi
15
98%-4:21 AMW4:55 PME11:13 PMS222,306 mi
16
99%-5:35 AMW5:24 PME--
17
100%-6:51 AMWNW5:56 PMENE12:04 AMS221,977 mi
18
99%-8:08 AMWNW6:32 PMENE12:58 AMS222,958 mi
19
95%-9:25 AMWNW7:15 PMENE1:54 AMS225,155 mi
20
88%-10:40 AMNW8:06 PMNE2:54 AMS228,329 mi
21
79%-11:48 AMNW9:04 PMNE3:56 AMS232,141 mi
22
69%-12:46 PMNW10:07 PMNE4:56 AMS236,210 mi
23
58%-1:33 PMWNW11:12 PMENE5:53 AMS240,189 mi
24
50%-2:11 PMWNW-6:45 AMS243,798 mi
25
38%12:16 AMENE2:42 PMWNW-7:33 AMS246,849 mi
26
28%1:18 AMENE3:08 PMWNW-8:17 AMS249,240 mi
27
20%2:17 AMENE3:32 PMW-8:57 AMS250,936 mi
28
13%3:14 AME3:54 PMW-9:36 AMS251,958 mi
29
7%4:10 AME4:15 PMW-10:14 AMS252,364 mi
30
3%5:07 AME4:37 PMWSW-10:53 AMS252,228 mi
31
1%6:04 AMESE5:02 PMWSW-11:33 AMS251,629 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy at Grand Canyon National Park Airport is essentially constant during October, remaining around 0% throughout.

Humidity Comfort Levels in October at Grand Canyon National Park Airport

Humidity Comfort Levels in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 160%Oct 160%Oct 10%Oct 10%Oct 310%Oct 310%drydrycomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Grand Canyon National Park Airport is essentially constant during October, remaining within 0.1 miles per hour of 7.3 miles per hour throughout.

For reference, on April 9, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 6.1 miles per hour.

Average Wind Speed in October at Grand Canyon National Park Airport

Average Wind Speed in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphSepNovOct 17.4 mphOct 17.4 mphOct 317.3 mphOct 317.3 mphOct 117.2 mphOct 117.2 mphOct 217.2 mphOct 217.2 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction at Grand Canyon National Park Airport during October is predominantly out of the south from October 1 to October 10 and the east from October 10 to October 31.

Wind Direction in October at Grand Canyon National Park Airport

Wind Direction in October at Grand Canyon National Park AirportWSEOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovNowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Grand Canyon National Park Airport typically lasts for 3.4 months (105 days), from around June 12 to around September 25, rarely starting before May 24 or after June 30, and rarely ending before September 7 or after October 14.

The month of October at Grand Canyon National Park Airport is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 35% to 0% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in October at Grand Canyon National Park Airport

Time Spent in Various Temperature Bands and the Growing Season in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 135%Oct 135%Oct 310%Oct 310%Oct 1115%Oct 1115%Oct 213%Oct 213%50%Sep 2550%Sep 2590%Sep 790%Sep 7NowNowfreezingvery coldcoldcoolcomfortablewarmfrigid
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Grand Canyon National Park Airport are gradually increasing during October, increasing by 142°F, from 2,219°F to 2,362°F, over the course of the month.

Growing Degree Days in October at Grand Canyon National Park Airport

Growing Degree Days in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312,100°F2,100°F2,200°F2,200°F2,300°F2,300°F2,400°F2,400°F2,500°F2,500°F2,600°F2,600°FSepNovOct 12,219°FOct 12,219°FOct 312,362°FOct 312,362°FOct 112,284°FOct 112,284°FOct 212,329°FOct 212,329°FNowNow
The average growing degree days accumulated over the course of October, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Grand Canyon National Park Airport is decreasing during October, falling by 1.5 kWh, from 5.6 kWh to 4.2 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in October at Grand Canyon National Park Airport

Average Daily Incident Shortwave Solar Energy in October at Grand Canyon National Park AirportOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSepNovOct 15.6 kWhOct 15.6 kWhOct 314.2 kWhOct 314.2 kWhOct 115.2 kWhOct 115.2 kWhOct 214.7 kWhOct 214.7 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Grand Canyon National Park Airport are 35.952 deg latitude, -112.147 deg longitude, and 6,568 ft elevation.

The topography within 2 miles of Grand Canyon National Park Airport contains only modest variations in elevation, with a maximum elevation change of 305 feet and an average elevation above sea level of 6,617 feet. Within 10 miles contains only modest variations in elevation (4,892 feet). Within 50 miles also contains extreme variations in elevation (10,850 feet).

The area within 2 miles of Grand Canyon National Park Airport is covered by trees (78%) and shrubs (22%), within 10 miles by trees (63%) and shrubs (35%), and within 50 miles by shrubs (73%) and trees (22%).

This report illustrates the typical weather at Grand Canyon National Park Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Grand Canyon National Park Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back are H.A. Clark Memorial Field, Flagstaff Pulliam Airport, Sedona Airport, Page Municipal Airport, Ernest A. Love Field, Winslow Municipal Airport, and Kingman Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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