October 2021 Weather History at Denver International Airport Colorado, United States

This report shows the past weather for Denver International Airport, providing a weather history for October 2021. It features all historical weather data series we have available, including the Denver International Airport temperature history for October 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Denver International Airport Temperature History October 2021

Temperature history in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313110°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FSepNov
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in October 2021 at Denver International Airport

Hourly Temperature in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNovcoldcoolwarmhotvery cold
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 hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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© Esri, et al.

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Cloud Cover in October 2021 at Denver International Airport

Cloud Cover in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in October 2021 at Denver International Airport

Daily Precipitation in October 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inSepNov
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in October 2021 at Denver International Airport

Observed Weather in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Tue, Oct 12 Thunderstorm with Light Ice Pellets and Rain, Thunderstorm with Light Rain, Light Rain0.04 in-TSPLRA, -TSRA, -RA
Fri, Oct 15 Light Snow0.01 in-SN
Tue, Oct 26 Light Rain0.03 in-RA

Hours of Daylight and Twilight in October 2021 at Denver International Airport

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.

Sunrise & Sunset with Twilight and Daylight Saving Time in October 2021 at Denver International Airport

Sunrise & Sunset with Twilight and Daylight Saving Time in October 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNov6:55 AM6:55 AMOct 16:40 PMOct 16:40 PM7:26 AM7:26 AMOct 315:57 PMOct 315:57 PM7:05 AM7:05 AMOct 116:24 PMOct 116:24 PM7:15 AM7:15 AMOct 216:10 PMOct 216:10 PM
The solar day over the course of October 2021. 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.

Moon Rise, Set & Phases in October 2021 at Denver International Airport

Moon Rise, Set & Phases in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovOct 65:06 AMOct 65:06 AMOct 208:57 AMOct 208:57 AMNov 43:15 PMNov 43:15 PM7:04 AM7:04 AM7:02 PM7:02 PM6:07 PM6:07 PM7:09 AM7:09 AM7:07 AM7:07 AM6:00 PM6:00 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 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
26%1:18 AMENE4:34 PMWNW-8:59 AMS243,172 mi
2
17%2:23 AMENE5:09 PMWNW-9:50 AMS239,688 mi
3
10%3:31 AMENE5:40 PMWNW-10:39 AMS236,079 mi
4
4%4:41 AMENE6:08 PMW-11:27 AMS232,647 mi
5
1%5:51 AME6:35 PMW-12:16 PMS229,694 mi
6
0%7:04 AME7:02 PMW-1:05 PMS227,474 mi
7
3%8:18 AMESE7:32 PMWSW-1:56 PMS226,157 mi
8
8%9:34 AMESE8:05 PMWSW-2:50 PMS225,807 mi
9
16%10:51 AMESE8:44 PMWSW-3:47 PMS226,374 mi
10
26%12:06 PMESE9:31 PMWSW-4:49 PMS227,712 mi
11
37%1:17 PMSE10:27 PMSW-5:52 PMS229,622 mi
12
50%2:19 PMSE11:30 PMSW-6:55 PMS231,888 mi
13
61%3:10 PMESE--7:54 PMS234,322 mi
14
71%-12:38 AMWSW3:52 PMESE8:50 PMS236,785 mi
15
81%-1:48 AMWSW4:26 PMESE9:41 PMS239,191 mi
16
88%-2:56 AMWSW4:55 PMESE10:28 PMS241,495 mi
17
94%-4:02 AMWSW5:21 PME11:12 PMS243,678 mi
18
98%-5:06 AMW5:44 PME11:54 PMS245,722 mi
19
99%-6:08 AMW6:07 PME--
20
100%-7:09 AMW6:30 PMENE12:36 AMS247,598 mi
21
100%-8:10 AMWNW6:55 PMENE1:17 AMS249,254 mi
22
97%-9:12 AMWNW7:23 PMENE2:00 AMS250,612 mi
23
93%-10:13 AMWNW7:55 PMENE2:44 AMS251,571 mi
24
88%-11:13 AMWNW8:32 PMENE3:31 AMS252,019 mi
25
80%-12:10 PMNW9:16 PMNE4:19 AMS251,844 mi
26
72%-1:03 PMNW10:07 PMNE5:09 AMS250,954 mi
27
63%-1:50 PMNW11:04 PMENE6:00 AMS249,296 mi
28
50%-2:31 PMWNW-6:50 AMS246,874 mi
29
43%12:06 AMENE3:07 PMWNW-7:40 AMS243,764 mi
30
33%1:11 AMENE3:38 PMWNW-8:28 AMS240,119 mi
31
23%2:18 AMENE4:07 PMWNW-9:16 AMS236,171 mi

Humidity Comfort Levels in October 2021 at Denver International Airport

Humidity Comfort Levels in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in October 2021 at Denver International Airport

Wind Speed in October 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphSepNov
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in October 2021 at Denver International Airport

Hourly Wind Speed in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2021 at Denver International Airport

Hourly Wind Direction in 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in October 2021 at Denver International Airport

Atmospheric Pressure in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgSepNov
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Number of Reports by Day in October 2021 at Denver International Airport Fall 2021

regularspecialcorrection
The number of reports per day.

Reports by Hour in October 2021 at Denver International Airport Fall 2021

Reports by Hour in October 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at Denver International Airport in October 2021.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

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.

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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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