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Spring Weather at Denver International Airport Colorado, United States

Daily high temperatures increase by 25°F, from 51°F to 76°F, rarely falling below 35°F or exceeding 87°F.

Daily low temperatures increase by 23°F, from 27°F to 49°F, rarely falling below 14°F or exceeding 57°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 the Spring at Denver International Airport

Average High and Low Temperature in the Spring at Denver International AirportMarAprMay0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FWinterSummerMar 151°FMar 151°F27°F27°FMay 3176°FMay 3176°F49°F49°FApr 158°FApr 158°F32°F32°FMay 166°FMay 166°F40°F40°F
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 spring temperatures. 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 the Spring at Denver International Airport

Average Hourly Temperature in the Spring at Denver International AirportMarAprMay12 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 AMWinterSummerfreezingfreezingvery coldcoldcoolcomfortablewarm
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 spring at Denver International Airport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 46% to 38%. The highest chance of overcast or mostly cloudy conditions is 46% on March 4.

The clearest day of the spring is May 31, with clear, mostly clear, or partly cloudy conditions 62% 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 the Spring at Denver International Airport

Cloud Cover Categories in the Spring at Denver International AirportMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerSep 1375%Sep 1375%Mar 155%Mar 155%May 3162%May 3162%Apr 155%Apr 155%May 155%May 155%clearmostly clearpartly 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 the spring is very rapidly increasing, starting the season at 9% and ending it at 26%.

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 the spring at Denver International Airport, the chance of a day with only rain increases from 3% to 26%, the chance of a day with mixed snow and rain decreases from 2% to 0%, and the chance of a day with only snow decreases from 3% to 0%.

Probability of Precipitation in the Spring at Denver International Airport

Probability of Precipitation in the Spring at Denver International AirportMarAprMay0%0%5%5%10%10%15%15%20%20%25%25%30%30%WinterSummerMay 2327%May 2327%Mar 19%Mar 19%Apr 117%Apr 117%May 124%May 124%snowmixedrain
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the spring at Denver International Airport is rapidly increasing, starting the season at 0.3 inches, when it rarely exceeds 0.6 inches, and ending the season at 1.7 inches, when it rarely exceeds 3.0 inches or falls below 0.6 inches.

The highest average 31-day accumulation is 1.8 inches on May 17.

Average Monthly Rainfall in the Spring at Denver International Airport

Average Monthly Rainfall in the Spring at Denver International AirportMarAprMay0.0 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 inWinterSummerMay 171.8 inMay 171.8 inMar 10.3 inMar 10.3 inMay 311.7 inMay 311.7 inApr 10.7 inApr 10.7 inMay 11.6 inMay 11.6 in
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 the spring at Denver International Airport is decreasing, starting the season at 2.6 inches, when it rarely exceeds 6.2 inches or falls below 0.3 inches, and ending the season at 0.1 inches, when it rarely exceeds 0.4 inches.

The highest average 31-day accumulation is 3.4 inches on March 19.

Average Monthly Snowfall in the Spring at Denver International Airport

Average Monthly Snowfall in the Spring at Denver International AirportMarAprMay0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 inWinterSummerMar 193.4 inMar 193.4 inMar 12.6 inMar 12.6 inMay 310.1 inMay 310.1 inApr 13.2 inApr 13.2 inMay 11.1 inMay 11.1 in
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 the spring at Denver International Airport, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 3 hours, 28 minutes, implying an average daily increase of 2 minutes, 17 seconds, and weekly increase of 16 minutes, 1 second.

The shortest day of the spring is March 1, with 11 hours, 20 minutes of daylight and the longest day is May 31, with 14 hours, 48 minutes of daylight.

Hours of Daylight and Twilight in the Spring at Denver International Airport

Hours of Daylight and Twilight in the Spring at Denver International AirportMarAprMay0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerMar 2012 hr, 7 minMar 2012 hr, 7 minnightnightdaydayMay 3114 hr, 48 minMay 3114 hr, 48 minMay 113 hr, 55 minMay 113 hr, 55 min
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 spring at Denver International Airport is 7:11 AM on March 14 and the earliest sunrise is 1 hour, 39 minutes earlier at 5:32 AM on May 31.

The earliest sunset is 5:51 PM on March 1 and the latest sunset is 2 hours, 30 minutes later at 8:20 PM on May 31.

Daylight saving time (DST) starts at 3:00 AM on March 14, 2021, shifting sunrise and sunset to be an hour later.

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 the Spring at Denver International Airport

Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring at Denver International AirportMarAprMay2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer5:32 AM5:32 AMMay 318:20 PMMay 318:20 PM6:31 AM6:31 AMMar 15:51 PMMar 15:51 PM6:42 AM6:42 AMApr 17:23 PMApr 17:23 PM5:58 AM5:58 AMMay 17:53 PMMay 17:53 PMMar 14DSTMar 14DSTSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the spring. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of key lunar data for the spring of 2021. 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 the Spring at Denver International Airport

Moon Rise, Set & Phases in the Spring at Denver International AirportMarAprMay12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerFeb 1112:06 PMFeb 1112:06 PMFeb 271:18 AMFeb 271:18 AMMar 133:22 AMMar 133:22 AMMar 2812:49 PMMar 2812:49 PMApr 118:31 PMApr 118:31 PMApr 269:32 PMApr 269:32 PMMay 111:01 PMMay 111:01 PMMay 265:15 AMMay 265:15 AMJun 104:53 AMJun 104:53 AMJun 2412:40 PMJun 2412:40 PM7:15 AM7:15 AM5:30 PM5:30 PM5:12 PM5:12 PM7:10 AM7:10 AM6:28 PM6:28 PM6:13 PM6:13 PM7:07 AM7:07 AM7:19 PM7:19 PM7:31 PM7:31 PM6:34 AM6:34 AM5:52 AM5:52 AM8:11 PM8:11 PM7:39 PM7:39 PM5:43 AM5:43 AM9:01 PM9:01 PM7:46 PM7:46 PM5:10 AM5:10 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.

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 the spring, 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 the Spring at Denver International Airport

Humidity Comfort Levels in the Spring at Denver International AirportMarAprMay0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%WinterSummerMar 10%Mar 10%May 310%May 310%Apr 10%Apr 10%May 10%May 10%drydrycomfortablecomfortable
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 decreasing during the spring, decreasing from 8.9 miles per hour to 7.8 miles per hour over the course of the season.

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 the spring is 9.4 miles per hour on April 1.

Average Wind Speed in the Spring at Denver International Airport

Average Wind Speed in the Spring at Denver International AirportMarAprMay0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphWinterSummerApr 19.4 mphApr 19.4 mphMar 18.9 mphMar 18.9 mphMay 317.8 mphMay 317.8 mphMay 18.4 mphMay 18.4 mph
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 the spring is predominantly from the west, with a peak proportion of 46% on March 1.

Wind Direction in the Spring at Denver International Airport

Wind Direction in the Spring at Denver International AirportMarAprMay0%100%20%80%40%60%60%40%80%20%100%0%WinterSummerwestsoutheastnorth
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.

During the spring at Denver International Airport, the chance that a given day is within the growing season is very rapidly increasing rising from 0% to 88% over the course of the season.

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

Time Spent in Various Temperature Bands and the Growing Season in the Spring at Denver International AirportMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerMar 10%Mar 10%88%May 3188%May 31Apr 11%Apr 11%May 139%May 139%0%Mar 110%Mar 11frigidfreezingvery coldcoldcoolwarmhotcomfortable
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 rapidly increasing during the spring, increasing by 466°F, from 33°F to 499°F, over the course of the season.

Growing Degree Days in the Spring at Denver International Airport

Growing Degree Days in the Spring at Denver International AirportMarAprMay100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°FWinterSummerMar 133°FMar 133°FMay 31499°FMay 31499°FApr 198°FApr 198°FMay 1231°FMay 1231°F
The average growing degree days accumulated over the course of the spring, 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 very rapidly increasing during the spring, rising by 3.2 kWh, from 4.4 kWh to 7.6 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Spring at Denver International Airport

Average Daily Incident Shortwave Solar Energy in the Spring at Denver International AirportMarAprMay0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhWinterSummerMar 14.4 kWhMar 14.4 kWhMay 317.6 kWhMay 317.6 kWhApr 15.7 kWhApr 15.7 kWhMay 16.7 kWhMay 16.7 kWh
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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