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April Weather at Denver International Airport Colorado, United States

Daily high temperatures increase by 7°F, from 58°F to 65°F, rarely falling below 41°F or exceeding 79°F.

Daily low temperatures increase by 8°F, from 32°F to 40°F, rarely falling below 21°F or exceeding 50°F.

For reference, on July 13, the hottest day of the year, temperatures at Denver International Airport typically range from 61°F to 88°F, while on December 30, the coldest day of the year, they range from 20°F to 42°F.

Average High and Low Temperature in April at Denver International Airport

Average High and Low Temperature in April at Denver International AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303010°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FMarMayApr 158°FApr 158°F32°F32°FApr 3065°FApr 3065°F40°F40°FApr 1161°FApr 1161°F35°F35°FApr 2163°FApr 2163°F38°F38°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in April at Denver International Airport

Average Hourly Temperature in April at Denver International AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMarMayNowNowfreezingvery coldvery coldcoldcoolcomfortablecool
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Ankara, Turkey (6,316 miles away) is the far-away foreign place with temperatures most similar to Denver International Airport (view comparison).

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© Esri, et al.

Compare Denver International Airport to another city:

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The month of April at Denver International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 45% throughout the month.

The clearest day of the month is April 28, with clear, mostly clear, or partly cloudy conditions 56% of the time.

For reference, on March 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on September 13, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.

Cloud Cover Categories in April at Denver International Airport

Cloud Cover Categories in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 155%Apr 155%Apr 3055%Apr 3055%Apr 1155%Apr 1155%Apr 2154%Apr 2154%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Denver International Airport, the chance of a wet day over the course of April is increasing, starting the month at 17% and ending it at 23%.

For reference, the year's highest daily chance of a wet day is 29% on July 22, and its lowest chance is 5% on December 19.

Over the course of April at Denver International Airport, the chance of a day with only rain increases from 9% to 19%, the chance of a day with mixed snow and rain decreases from 5% to 3%, and the chance of a day with only snow decreases from 3% to 1%.

Probability of Precipitation in April at Denver International Airport

Probability of Precipitation in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%5%5%10%10%15%15%20%20%25%25%30%30%MarMayApr 117%Apr 117%Apr 3023%Apr 3023%Apr 1120%Apr 1120%Apr 2120%Apr 2120%NowNowsnowmixedrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during April at Denver International Airport is increasing, starting the month at 0.7 inches, when it rarely exceeds 1.4 inches or falls below 0.2 inches, and ending the month at 1.6 inches, when it rarely exceeds 3.1 inches or falls below 0.4 inches.

Average Monthly Rainfall in April at Denver International Airport

Average Monthly Rainfall in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inMarMayApr 10.7 inApr 10.7 inApr 301.6 inApr 301.6 inApr 111.0 inApr 111.0 inApr 211.3 inApr 211.3 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during April at Denver International Airport is decreasing, starting the month at 3.2 inches, when it rarely exceeds 7.6 inches or falls below 0.2 inches, and ending the month at 1.2 inches, when it rarely exceeds 3.8 inches.

Average Monthly Snowfall in April at Denver International Airport

Average Monthly Snowfall in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 inMarMayApr 13.2 inApr 13.2 inApr 301.2 inApr 301.2 inApr 112.6 inApr 112.6 inApr 211.8 inApr 211.8 inNowNow
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Over the course of April at Denver International Airport, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 12 minutes, implying an average daily increase of 2 minutes, 28 seconds, and weekly increase of 17 minutes, 19 seconds.

The shortest day of the month is April 1, with 12 hours, 40 minutes of daylight and the longest day is April 30, with 13 hours, 52 minutes of daylight.

Hours of Daylight and Twilight in April at Denver International Airport

Hours of Daylight and Twilight in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 40 minApr 112 hr, 40 minApr 3013 hr, 52 minApr 3013 hr, 52 minApr 1613 hr, 19 minApr 1613 hr, 19 minNowNow
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.

The latest sunrise of the month at Denver International Airport is 6:42 AM on April 1 and the earliest sunrise is 42 minutes earlier at 6:00 AM on April 30.

The earliest sunset is 7:23 PM on April 1 and the latest sunset is 29 minutes later at 7:52 PM on April 30.

Daylight saving time is observed at Denver International Airport during 2022, but it neither starts nor ends during April, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:30 AM and sets 15 hours, 0 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 7:16 AM and sets 9 hours, 21 minutes later, at 4:37 PM.

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

Sunrise & Sunset with Twilight and Daylight Saving Time in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay6:00 AM6:00 AMApr 307:52 PMApr 307:52 PM6:42 AM6:42 AMApr 17:23 PMApr 17:23 PM6:26 AM6:26 AMApr 117:33 PMApr 117:33 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of April. 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.

The figure below presents a compact representation of key lunar data for April 2022. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in April at Denver International Airport

Moon Rise, Set & Phases in April at Denver International AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 210:35 AMMar 210:35 AMMar 181:18 AMMar 181:18 AMApr 112:25 AMApr 112:25 AMApr 1612:56 PMApr 1612:56 PMApr 302:29 PMApr 302:29 PMMay 1510:15 PMMay 1510:15 PMMay 305:31 AMMay 305:31 AM6:52 AM6:52 AM6:00 PM6:00 PM6:39 PM6:39 PM7:36 AM7:36 AM6:46 AM6:46 AM6:58 PM6:58 PM6:37 PM6:37 PM6:27 AM6:27 AM6:00 AM6:00 AM7:59 PM7:59 PM7:55 PM7:55 PM5:58 AM5:58 AM5:31 AM5:31 AM8:57 PM8:57 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.
Apr 2022IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%7:09 AME8:03 PMW-1:34 PMS241,311 mi
2
3%7:33 AMENE9:07 PMWNW-2:17 PMS243,825 mi
3
7%7:58 AMENE10:11 PMWNW-3:01 PMS246,241 mi
4
13%8:26 AMENE11:15 PMWNW-3:46 PMS248,373 mi
5
20%8:57 AMENE--4:34 PMS250,030 mi
6
29%-12:16 AMWNW9:34 AMENE5:22 PMS251,045 mi
7
38%-1:15 AMNW10:17 AMNE6:13 PMS251,289 mi
8
48%-2:09 AMNW11:07 AMNE7:03 PMS250,691 mi
9
50%-2:57 AMNW12:03 PMNE7:53 PMS249,250 mi
10
67%-3:38 AMWNW1:04 PMENE8:42 PMS247,036 mi
11
77%-4:13 AMWNW2:08 PMENE9:30 PMS244,195 mi
12
85%-4:44 AMWNW3:13 PMENE10:16 PMS240,935 mi
13
92%-5:11 AMWNW4:20 PMENE11:01 PMS237,511 mi
14
97%-5:36 AMW5:27 PME11:46 PMS234,206 mi
15
99%-6:01 AMW6:37 PME--
16
100%-6:27 AMW7:49 PMESE12:33 AMS231,296 mi
17
100%-6:55 AMWSW9:04 PMESE1:22 AMS229,019 mi
18
97%-7:27 AMWSW10:21 PMESE2:15 AMS227,536 mi
19
91%-8:06 AMWSW11:37 PMESE3:13 AMS226,913 mi
20
83%-8:54 AMSW-4:15 AMS227,116 mi
21
73%12:48 AMSE9:51 AMSW-5:20 AMS228,028 mi
22
61%1:51 AMSE10:58 AMSW-6:24 AMS229,484 mi
23
50%2:42 AMESE12:09 PMWSW-7:26 AMS231,307 mi
24
38%3:23 AMESE1:22 PMWSW-8:22 AMS233,347 mi
25
27%3:57 AMESE2:33 PMWSW-9:14 AMS235,495 mi
26
18%4:25 AMESE3:41 PMW-10:02 AMS237,685 mi
27
10%4:50 AME4:47 PMW-10:47 AMS239,884 mi
28
5%5:13 AME5:51 PMW-11:30 AMS242,068 mi
29
1%5:36 AME6:55 PMWNW-12:13 PMS244,211 mi
30
0%6:00 AMENE7:59 PMWNW-12:56 PMS246,265 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy at Denver International Airport is essentially constant during April, remaining around 0% throughout.

For reference, on July 24, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April at Denver International Airport

Humidity Comfort Levels in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 160%Apr 160%Apr 10%Apr 10%Apr 300%Apr 300%NowNowdrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Denver International Airport is gradually decreasing during April, decreasing from 9.4 miles per hour to 8.5 miles per hour over the course of the month.

For reference, on April 1, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on August 19, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.

The highest daily average wind speed during April is 9.4 miles per hour on April 1.

Average Wind Speed in April at Denver International Airport

Average Wind Speed in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphMarMayApr 19.4 mphApr 19.4 mphApr 308.5 mphApr 308.5 mphApr 119.3 mphApr 119.3 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Denver International Airport throughout April is predominantly from the west, with a peak proportion of 38% on April 1.

Wind Direction in April at Denver International Airport

Wind Direction in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMayNowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Denver International Airport typically lasts for 4.8 months (147 days), from around May 6 to around September 30, rarely starting before April 15 or after June 7, and rarely ending before September 7 or after October 25.

The month of April at Denver International Airport is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 1% to 36% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in April at Denver International Airport

Time Spent in Various Temperature Bands and the Growing Season in April at Denver International Airportgrowing seasonApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 11%Apr 11%Apr 3036%Apr 3036%Apr 116%Apr 116%Apr 2118%Apr 2118%50%May 650%May 6NowNowfreezingvery coldcoldcoolcomfortablewarmfrigid
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Denver International Airport are gradually increasing during April, increasing by 127°F, from 98°F to 225°F, over the course of the month.

Growing Degree Days in April at Denver International Airport

Growing Degree Days in April at Denver International AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303050°F50°F100°F100°F150°F150°F200°F200°F250°F250°F300°F300°FMarMayApr 198°FApr 198°FApr 30225°FApr 30225°FApr 11134°FApr 11134°FApr 21177°FApr 21177°FNowNow
The average growing degree days accumulated over the course of April, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Denver International Airport is gradually increasing during April, rising by 1.0 kWh, from 5.7 kWh to 6.7 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April at Denver International Airport

Average Daily Incident Shortwave Solar Energy in April at Denver International AirportApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMarMayApr 15.7 kWhApr 15.7 kWhApr 306.7 kWhApr 306.7 kWhApr 116.1 kWhApr 116.1 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Denver International Airport are 39.859 deg latitude, -104.673 deg longitude, and 5,407 ft elevation.

The topography within 2 miles of Denver International Airport contains only modest variations in elevation, with a maximum elevation change of 210 feet and an average elevation above sea level of 5,342 feet. Within 10 miles contains only modest variations in elevation (682 feet). Within 50 miles contains significant variations in elevation (7,356 feet).

The area within 2 miles of Denver International Airport is covered by shrubs (92%), within 10 miles by shrubs (37%) and grassland (34%), and within 50 miles by grassland (45%) and cropland (21%).

This report illustrates the typical weather at Denver International Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Denver International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Buckley Air Force Base; Denver / Stapleton International, Co.; Arapahoe County Airport; Erie Municipal; Rocky Mountain Metropolitan Airport; Boulder Municipal Airport; Greeley-Weld County Airport; and Vance Brand Airport.

Other Data

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.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

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.

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