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

Denver International Airport Temperature History May 2021

Temperature history in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FAprJun
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 May 2021 at Denver International Airport

Hourly Temperature in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJuncoldcoolhotvery coldwarm
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 May 2021 at Denver International Airport

Cloud Cover in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 May 2021 at Denver International Airport

Daily Precipitation in May 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inAprJun
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in May 2021 at Denver International Airport

Snow Depth in May 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 inAprJun
The daily measured snow depth, where available.

Observed Weather in May 2021 at Denver International Airport

Observed Weather in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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, May 2 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Rain, Light Rain, Mist, Squall0.09 inTS, VCTS, -TSRA, RA, -RA, BR, SQ
Mon, May 3 Rain, Light Rain, Mist0.65 inRA, -RA, BR
Tue, May 4 Distant Lightning, Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm without Precipitation, Light Rain0.01 inIWCA12, IWC17, IWCA90, TS, IWCIV01, VCTS, IWCA91, IWC61, IWCA61, -RA
Wed, May 5 Light Rain, Mist0.00 inIWC61, IWCA61, -RA, IWCA10, BR
Sat, May 8 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Rain, Light Rain0.11 inTS, VCTS, -TSRA, RA, -RA
Sun, May 9 Light Rain, Mist0.08 in-RA, BR
Mon, May 10 Light Snow, Light Rain, Light Drizzle, Mist0.19 in-SN, -RA, -DZ, BR
Tue, May 11 Light Snow, Light Snow and Rain, Rain, Light Rain, Mist0.24 in-SN, -SNRA, RA, -RA, BR
Fri, May 14 Light Rain0.00 in-RA
Sat, May 15 MistBR
Sun, May 16 Light Rain, Mist, Patches of Fog0.02 in-RA, BR, BCFG
Mon, May 17 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Light Rain, Haze, Mist0.09 inVCTS, -TSRA, -RA, HZ, BR
Tue, May 18 Light Rain, Mist, Patches of Fog0.14 in-RA, BR, BCFG
Thu, May 20 Light Rain0.00 in-RA
Fri, May 21 Light Rain0.00 in-RA
Sat, May 22 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Mist0.99 inTS, VCTS, +TSRA, -TSRA, BR
Sun, May 23 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Heavy Rain, Rain, Light Rain, Mist0.31 inVCTS, -TSRA, +RA, RA, -RA, BR
Mon, May 24 Fog, Mist, Patches of FogFG, BR, BCFG
Tue, May 25 Thunderstorm in the Vicinity, Light Rain0.00 inVCTS, -RA
Sat, May 29 Mist0.00 inBR
Sun, May 30 Thunderstorm in the Vicinity, Heavy Rain, Light Rain, Light Drizzle, Fog, Mist0.71 inVCTS, +RA, -RA, -DZ, FG, BR
Mon, May 31 Patches of FogBCFG

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

The solar day over the course of May 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 May 2021 at Denver International Airport

Moon Rise, Set & Phases in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 269:32 PMApr 269:32 PMMay 111:01 PMMay 111:01 PMMay 265:15 AMMay 265:15 AM7:31 PM7:31 PM6:34 AM6:34 AM5:52 AM5:52 AM8:11 PM8:11 PM7:39 PM7:39 PM5:43 AM5:43 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.
May 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
75%12:33 AMSE9:47 AMSW-5:10 AMS229,610 mi
2
64%1:30 AMESE10:53 AMWSW-6:11 AMS233,284 mi
3
50%2:17 AMESE12:00 PMWSW-7:09 AMS237,035 mi
4
42%2:55 AMESE1:07 PMWSW-8:01 AMS240,599 mi
5
32%3:27 AMESE2:11 PMWSW-8:49 AMS243,796 mi
6
23%3:54 AMESE3:13 PMW-9:33 AMS246,520 mi
7
15%4:18 AME4:13 PMW-10:14 AMS248,726 mi
8
9%4:40 AME5:13 PMW-10:55 AMS250,412 mi
9
4%5:03 AME6:12 PMW-11:35 AMS251,599 mi
10
1%5:26 AMENE7:11 PMWNW-12:16 PMS252,318 mi
11
0%5:52 AMENE8:11 PMWNW-12:58 PMS252,590 mi
12
1%6:20 AMENE9:11 PMWNW-1:42 PMS252,422 mi
13
4%6:53 AMENE10:10 PMWNW-2:29 PMS251,800 mi
14
8%7:33 AMENE11:07 PMNW-3:18 PMS250,696 mi
15
15%8:18 AMNE11:59 PMNW-4:09 PMS249,075 mi
16
23%9:11 AMNE--5:00 PMS246,915 mi
17
32%-12:46 AMWNW10:10 AMENE5:51 PMS244,219 mi
18
42%-1:27 AMWNW11:13 AMENE6:41 PMS241,038 mi
19
50%-2:03 AMWNW12:19 PMENE7:30 PMS237,481 mi
20
64%-2:34 AMWNW1:28 PMENE8:19 PMS233,728 mi
21
75%-3:03 AMWNW2:37 PME9:07 PMS230,032 mi
22
84%-3:31 AMW3:49 PME9:55 PMS226,701 mi
23
92%-3:59 AMW5:03 PME10:47 PMS224,070 mi
24
98%-4:29 AMWSW6:20 PMESE11:42 PMS222,446 mi
25
99%-5:03 AMWSW7:39 PMESE--
26
100%-5:43 AMWSW8:58 PMESE12:41 AMS222,048 mi
27
99%-6:31 AMWSW10:12 PMSE1:45 AMS222,957 mi
28
95%-7:29 AMSW11:17 PMSE2:51 AMS225,087 mi
29
88%-8:34 AMWSW-3:56 AMS228,194 mi
30
79%12:11 AMESE9:44 AMWSW-4:57 AMS231,936 mi
31
69%12:54 AMESE10:53 AMWSW-5:54 AMS235,942 mi

Humidity Comfort Levels in May 2021 at Denver International Airport

Humidity Comfort Levels in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 May 2021 at Denver International Airport

Wind Speed in May 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphAprJun
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in May 2021 at Denver International Airport

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

Atmospheric Pressure in May 2021 at Denver International Airport

Atmospheric Pressure in May 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 inHgAprJun
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 May 2021 at Denver International Airport Spring 2021

Number of Reports by Day in May 2021 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131005050100100AprJun
regularspecialcorrection
The number of reports per day.

Reports by Hour in May 2021 at Denver International Airport Spring 2021

Reports by Hour in May 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAprJun
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 May 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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