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

Denver International Airport Temperature History April 2021

Temperature history in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303010°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FMarMay
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 April 2021 at Denver International Airport

Hourly Temperature in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMaycoldvery coldwarmfreezing
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 April 2021 at Denver International Airport

Cloud Cover in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 2021 at Denver International Airport

Daily Precipitation in April 2021 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inMarMay
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in April 2021 at Denver International Airport

Snow Depth in April 2021 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 inMarMay
The daily measured snow depth, where available.

Observed Weather in April 2021 at Denver International Airport

Observed Weather in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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, Apr 6 Light Snow and Rain, Rain and Snow, Rain, Light Rain, Mist0.15 in-SNRA, RASN, RA, -RA, BR
Thu, Apr 15 Heavy Snow, Snow, Light Snow, Light Snow and Rain, Light Rain, Haze, Fog, Freezing Fog, Mist0.42 in+SN, SN, -SN, -SNRA, -RA, HZ, FG, FZFG, BR
Fri, Apr 16 Light Snow, Freezing Fog, Mist0.07 in-SN, FZFG, BR
Sat, Apr 17 Light Snow0.00 in-SN
Mon, Apr 19 Heavy Snow, Snow, Light Snow, Light Freezing Drizzle and Snow, Freezing Drizzle, Light Freezing Drizzle, Fog, Freezing Fog, Mist0.22 in+SN, SN, -SN, -FZDZSN, FZDZ, -FZDZ, FG, FZFG, BR
Tue, Apr 20 Light Snow, Mist0.02 in-SN, BR
Wed, Apr 21 Snow, Light Snow, Haze, Fog, Mist0.13 inSN, -SN, HZ, FG, BR
Thu, Apr 22 Haze, Mist0.00 inHZ, BR
Sat, Apr 24 Fog, Mist, Patches of FogFG, BR, BCFG
Tue, Apr 27 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Rain, Light Rain, Mist0.72 inVCTS, -TSRA, TSRA, +RA, RA, -RA, BR
Wed, Apr 28 Light Rain, Light Drizzle0.21 in-RA, -DZ

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

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

Moon Rise, Set & Phases in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 2812:49 PMMar 2812:49 PMApr 118:31 PMApr 118:31 PMApr 269:32 PMApr 269:32 PM6:13 PM6:13 PM7:07 AM7:07 AM6:35 AM6:35 AM7:19 PM7:19 PM7:31 PM7:31 PM6:34 AM6:34 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.
Apr 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
82%-9:20 AMWSW-4:18 AMS226,147 mi
2
72%12:31 AMESE10:05 AMWSW-5:18 AMS228,512 mi
3
60%1:41 AMESE10:59 AMSW-6:20 AMS231,351 mi
4
50%2:42 AMSE11:59 AMWSW-7:21 AMS234,401 mi
5
37%3:34 AMESE1:03 PMWSW-8:19 AMS237,444 mi
6
27%4:17 AMESE2:09 PMWSW-9:13 AMS240,327 mi
7
18%4:52 AMESE3:15 PMWSW-10:03 AMS242,957 mi
8
11%5:22 AMESE4:18 PMWSW-10:49 AMS245,295 mi
9
5%5:48 AME5:20 PMW-11:33 AMS247,326 mi
10
2%6:12 AME6:20 PMW-12:14 PMS249,048 mi
11
0%6:35 AME7:19 PMW-12:55 PMS250,449 mi
12
0%6:58 AME8:18 PMWNW-1:35 PMS251,502 mi
13
3%7:22 AMENE9:18 PMWNW-2:17 PMS252,157 mi
14
7%7:48 AMENE10:18 PMWNW-3:00 PMS252,346 mi
15
12%8:18 AMENE11:17 PMWNW-3:45 PMS251,989 mi
16
20%8:53 AMENE--4:32 PMS251,006 mi
17
28%-12:16 AMWNW9:35 AMENE5:22 PMS249,341 mi
18
37%-1:11 AMNW10:23 AMNE6:13 PMS246,977 mi
19
48%-2:02 AMNW11:18 AMENE7:05 PMS243,953 mi
20
50%-2:48 AMWNW12:20 PMENE7:57 PMS240,381 mi
21
69%-3:28 AMWNW1:26 PMENE8:48 PMS236,452 mi
22
79%-4:03 AMWNW2:35 PMENE9:38 PMS232,433 mi
23
88%-4:34 AMWNW3:46 PMENE10:28 PMS228,654 mi
24
95%-5:04 AMW4:59 PME11:18 PMS225,470 mi
25
97%-5:32 AMW6:14 PME--
26
100%-6:02 AMW7:31 PMESE12:10 AMS223,215 mi
27
100%-6:34 AMWSW8:50 PMESE1:04 AMS222,137 mi
28
98%-7:11 AMWSW10:09 PMESE2:01 AMS222,353 mi
29
93%-7:55 AMWSW11:25 PMESE3:02 AMS223,818 mi
30
85%-8:47 AMWSW-4:06 AMS226,339 mi

Humidity Comfort Levels in April 2021 at Denver International Airport

Humidity Comfort Levels in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 2021 at Denver International Airport

Wind Speed in April 2021 at Denver International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphMarMay
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in April 2021 at Denver International Airport

Hourly Wind Speed in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in April 2021 at Denver International Airport

Atmospheric Pressure in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgMarMay
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 April 2021 at Denver International Airport Spring 2021

Number of Reports by Day in April 2021 at Denver International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030005050100100MarMay
regularspecialcorrection
The number of reports per day.

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

Reports by Hour in April 2021 at Denver International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 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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