September 2020 Weather History at Denver International Airport Colorado, United States

This report shows the past weather for Denver International Airport, providing a weather history for September 2020. It features all historical weather data series we have available, including the Denver International Airport temperature history for September 2020. You can drill down from year to month and even day level reports by clicking on the graphs.

Denver International Airport Temperature History September 2020

Temperature history in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303030°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FAugOct
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 September 2020 at Denver International Airport

Hourly Temperature in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoldcoolwarmhot
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 September 2020 at Denver International Airport

Cloud Cover in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2020 at Denver International Airport

Daily Precipitation in September 2020 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in September 2020 at Denver International Airport

Snow Depth in September 2020 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inAugOct
The daily measured snow depth, where available.

Observed Weather in September 2020 at Denver International Airport

Observed Weather in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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
Sun, Sep 6 Haze, SmokeHZ, FU
Mon, Sep 7 Distant Lightning, Thunderstorm in the Vicinity, Heavy Rain, Rain, Light Rain, Haze, Smoke0.11 inVCTS, RA, -RA, HZ
Tue, Sep 8 Snow, Light Snow, Light Rain and Snow, Light Snow and Rain, Light Rain, Light Drizzle, Fog, Mist0.70 inSN, -SN, -RASN, -SNRA, -RA, -DZ, FG, BR
Wed, Sep 9 Light Snow, Mist0.04 in-SN, BR
Thu, Sep 10 Light Rain, Mist0.01 in-RA, BR
Fri, Sep 11 Haze, Smoke, MistHZ, BR
Wed, Sep 16 Haze, SmokeHZ, FU
Thu, Sep 17 Haze, SmokeHZ, FU
Fri, Sep 18 Haze, SmokeHZ
Sun, Sep 20 Haze, Smoke0.00 inHZ
Tue, Sep 22 Distant Lightning, Thunderstorm in the VicinityVCTS
Sat, Sep 26 Haze, SmokeFU
Sun, Sep 27 Light Rain0.03 in-RA

Hours of Daylight and Twilight in September 2020 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 in September 2020 at Denver International Airport

Sunrise & Sunset with Twilight in September 2020 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct6:27 AM6:27 AMSep 17:29 PMSep 17:29 PM6:54 AM6:54 AMSep 306:41 PMSep 306:41 PM6:36 AM6:36 AMSep 117:12 PMSep 117:12 PM6:45 AM6:45 AMSep 216:56 PMSep 216:56 PM
The solar day over the course of September 2020. 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 September 2020 at Denver International Airport

Moon Rise, Set & Phases in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctSep 111:23 PMSep 111:23 PMSep 175:01 AMSep 175:01 AMOct 13:06 PMOct 13:06 PM7:43 PM7:43 PM6:41 AM6:41 AM6:44 AM6:44 AM7:41 PM7:41 PM7:02 PM7:02 PM7:31 AM7:31 AM
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.
Sep 2020IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
100%-5:40 AMWSW7:43 PMESE12:26 AMS246,328 mi
2
100%-6:41 AMWSW8:09 PME1:12 AMS248,181 mi
3
99%-7:41 AMW8:34 PME1:55 AMS249,772 mi
4
96%-8:40 AMW8:58 PME2:36 AMS251,013 mi
5
91%-9:38 AMW9:21 PME3:16 AMS251,801 mi
6
85%-10:36 AMWNW9:46 PMENE3:56 AMS252,026 mi
7
77%-11:35 AMWNW10:13 PMENE4:38 AMS251,589 mi
8
68%-12:34 PMWNW10:44 PMENE5:21 AMS250,415 mi
9
59%-1:34 PMWNW11:21 PMENE6:06 AMS248,473 mi
10
50%-2:34 PMWNW-6:55 AMS245,790 mi
11
38%12:04 AMENE3:32 PMWNW-7:47 AMS242,468 mi
12
28%12:55 AMENE4:26 PMWNW-8:41 AMS238,689 mi
13
19%1:55 AMENE5:15 PMWNW-9:37 AMS234,713 mi
14
11%3:02 AMENE5:58 PMWNW-10:33 AMS230,867 mi
15
4%4:13 AMENE6:36 PMWNW-11:28 AMS227,503 mi
16
1%5:28 AMENE7:10 PMWNW-12:22 PMS224,951 mi
17
0%6:44 AME7:41 PMW-1:15 PMS223,462 mi
18
3%7:59 AME8:12 PMW-2:08 PMS223,162 mi
19
8%9:15 AME8:44 PMWSW-3:01 PMS224,034 mi
20
17%10:31 AMESE9:19 PMWSW-3:55 PMS225,925 mi
21
27%11:45 AMESE9:57 PMWSW-4:51 PMS228,585 mi
22
38%12:57 PMESE10:41 PMWSW-5:49 PMS231,721 mi
23
50%2:04 PMESE11:31 PMWSW-6:48 PMS235,046 mi
24
61%3:04 PMESE--7:46 PMS238,322 mi
25
71%-12:27 AMWSW3:56 PMESE8:42 PMS241,376 mi
26
80%-1:28 AMWSW4:39 PMESE9:34 PMS244,104 mi
27
88%-2:30 AMWSW5:15 PMESE10:24 PMS246,458 mi
28
94%-3:32 AMWSW5:46 PMESE11:10 PMS248,425 mi
29
98%-4:34 AMWSW6:13 PMESE11:53 PMS250,010 mi
30
99%-5:34 AMW6:38 PME--

Humidity Comfort Levels in September 2020 at Denver International Airport

Humidity Comfort Levels in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2020 at Denver International Airport

Wind Speed in September 2020 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2020 at Denver International Airport

Hourly Wind Speed in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 2020 at Denver International Airport

Hourly Wind Direction in 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in September 2020 at Denver International Airport

Atmospheric Pressure in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 inHgAugOct
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 September 2020 at Denver International Airport Fall 2020

Number of Reports by Day in September 2020 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030002020404060608080100100AugOct
regularspecialcorrection
The number of reports per day.

Reports by Hour in September 2020 at Denver International Airport Fall 2020

Reports by Hour in September 2020 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
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 September 2020.

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.

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.