September 2019 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 2019. It features all historical weather data series we have available, including the Denver International Airport temperature history for September 2019. You can drill down from year to month and even day level reports by clicking on the graphs.

Denver International Airport Temperature History September 2019

Temperature history in September 2019 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 2019 at Denver International Airport

Hourly Temperature in September 2019 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoolwarmhotcoldcomfortable
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 2019 at Denver International Airport

Cloud Cover in September 2019 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 2019 at Denver International Airport

Daily Precipitation in September 2019 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 in1.4 in1.4 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in September 2019 at Denver International Airport

Snow Depth in September 2019 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 inAugOct
The daily measured snow depth, where available.

Observed Weather in September 2019 at Denver International Airport

Observed Weather in September 2019 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
Thu, Sep 5 Thunderstorm, Thunderstorm without Precipitation, Light Rain0.00 inTS, -RA
Fri, Sep 6 Distant Lightning, Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Showers, Light Rain0.14 inVCTS, -TSRA, -RA
Sat, Sep 7 Distant Lightning, Thunderstorm in the Vicinity, Light Rain0.00 inVCTS, -RA
Sun, Sep 8 Distant Lightning, Heavy Thunderstorm with Showers, Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Thunderstorm with Showers, Thunderstorm without Precipitation, Heavy Rain, Rain, Light Rain, Haze, Smoke, Mist0.17 inTS, VCTS, +TSRA, -TSRA, TSRA, -RA, HZ, BR
Mon, Sep 9 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Showers, Light Rain, Fog, Mist, Patches of Fog0.09 in-TSRA, FG, BR
Wed, Sep 11 Distant Lightning, Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm without Precipitation0.00 inTS, VCTS
Wed, Sep 18 Distant Lightning, Thunderstorm in the Vicinity, Light Rain0.00 inVCTS, -RA
Sat, Sep 21 Light Rain0.01 in-RA
Sun, Sep 22 Light Rain0.00 in
Sun, Sep 29 Fog, Fog in the Vicinity, Patches of Fog, Shallow Fog0.00 inFG, VCFG

Hours of Daylight and Twilight in September 2019 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 2019 at Denver International Airport

Sunrise & Sunset with Twilight in September 2019 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 AMAugOct6:26 AM6:26 AMSep 17:30 PMSep 17:30 PM6:53 AM6:53 AMSep 306:42 PMSep 306:42 PM6:35 AM6:35 AMSep 117:14 PMSep 117:14 PM6:45 AM6:45 AMSep 216:57 PMSep 216:57 PM
The solar day over the course of September 2019. 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 2019 at Denver International Airport

Moon Rise, Set & Phases in September 2019 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 304:38 AMAug 304:38 AMSep 1310:34 PMSep 1310:34 PMSep 2812:27 PMSep 2812:27 PM6:27 AM6:27 AM8:12 PM8:12 PM7:24 PM7:24 PM6:54 AM6:54 AM6:31 AM6:31 AM7:14 PM7:14 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.
Sep 2019IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
9%8:58 AME9:20 PMW-3:11 PMS224,795 mi
2
17%10:11 AME9:52 PMW-4:03 PMS227,743 mi
3
27%11:23 AMESE10:26 PMWSW-4:55 PMS231,299 mi
4
38%12:31 PMESE11:02 PMWSW-5:47 PMS235,124 mi
5
50%1:38 PMESE11:42 PMWSW-6:40 PMS238,908 mi
6
60%2:40 PMESE--7:33 PMS242,411 mi
7
70%-12:26 AMWSW3:37 PMESE8:26 PMS245,466 mi
8
79%-1:15 AMWSW4:28 PMESE9:18 PMS247,978 mi
9
86%-2:08 AMWSW5:13 PMESE10:08 PMS249,916 mi
10
92%-3:04 AMWSW5:52 PMESE10:56 PMS251,289 mi
11
97%-4:01 AMWSW6:26 PMESE11:42 PMS252,134 mi
12
98%-4:59 AMWSW6:56 PMESE--
13
100%-5:57 AMWSW7:24 PME12:26 AMS252,492 mi
14
100%-6:54 AMW7:50 PME1:08 AMS252,400 mi
15
99%-7:52 AMW8:15 PME1:50 AMS251,876 mi
16
96%-8:50 AMW8:41 PME2:31 AMS250,919 mi
17
91%-9:48 AMW9:08 PMENE3:12 AMS249,513 mi
18
84%-10:48 AMWNW9:37 PMENE3:55 AMS247,635 mi
19
76%-11:49 AMWNW10:11 PMENE4:40 AMS245,271 mi
20
67%-12:51 PMWNW10:51 PMENE5:28 AMS242,434 mi
21
50%-1:53 PMWNW11:37 PMENE6:20 AMS239,182 mi
22
45%-2:53 PMWNW-7:14 AMS235,638 mi
23
34%12:32 AMENE3:49 PMWNW-8:11 AMS232,000 mi
24
23%1:35 AMENE4:40 PMWNW-9:10 AMS228,539 mi
25
14%2:45 AMENE5:25 PMWNW-10:08 AMS225,579 mi
26
6%3:59 AMENE6:04 PMWNW-11:05 AMS223,443 mi
27
2%5:15 AMENE6:40 PMW-12:00 PMS222,402 mi
28
0%6:31 AME7:14 PMW-12:55 PMS222,612 mi
29
2%7:46 AME7:47 PMW-1:48 PMS224,079 mi
30
6%9:00 AME8:21 PMWSW-2:41 PMS226,655 mi

Humidity Comfort Levels in September 2019 at Denver International Airport

Humidity Comfort Levels in September 2019 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 2019 at Denver International Airport

Wind Speed in September 2019 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2019 at Denver International Airport

Hourly Wind Speed in September 2019 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 2019 at Denver International Airport

Hourly Wind Direction in 2019 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 2019 at Denver International Airport

Atmospheric Pressure in September 2019 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 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 2019 at Denver International Airport Fall 2019

Number of Reports by Day in September 2019 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030002020404060608080100100AugOct
regularspecialcorrection
The number of reports per day.

Reports by Hour in September 2019 at Denver International Airport Fall 2019

Reports by Hour in September 2019 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 2019.

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.