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Spring Weather in Ault Colorado, United States

Daily high temperatures increase by 26°F, from 50°F to 76°F, rarely falling below 35°F or exceeding 87°F.

Daily low temperatures increase by 25°F, from 25°F to 49°F, rarely falling below 13°F or exceeding 56°F.

For reference, on July 13, the hottest day of the year, temperatures in Ault typically range from 59°F to 87°F, while on December 30, the coldest day of the year, they range from 16°F to 38°F.

Average High and Low Temperature in the Spring in Ault

Average High and Low Temperature in the Spring in AultMarAprMay0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FWinterSummerMar 150°FMar 150°F25°F25°FMay 3176°FMay 3176°F49°F49°FApr 158°FApr 158°F31°F31°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 in Ault

Average Hourly Temperature in the Spring in AultMarAprMay12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 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.

Göreme, Turkey (6,405 miles away) and Bījār, Iran (6,878 miles) are the far-away foreign places with temperatures most similar to Ault (view comparison).

Compare Ault to another city:

Clouds

The spring in Ault experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 48% to 39%. The highest chance of overcast or mostly cloudy conditions is 48% on March 4.

The clearest day of the spring is May 31, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on March 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on July 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.

Cloud Cover Categories in the Spring in Ault

Cloud Cover Categories in the Spring in AultMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerJul 275%Jul 275%Mar 152%Mar 152%May 3161%May 3161%Apr 153%Apr 153%May 153%May 153%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.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ault, 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 27%.

For reference, the year's highest daily chance of a wet day is 28% on May 25, and its lowest chance is 6% on January 12.

Over the course of the spring in Ault, the chance of a day with only rain increases from 5% to 27%, the chance of a day with mixed snow and rain remains an essentially constant 2% throughout, and the chance of a day with only snow decreases from 3% to 0%.

Probability of Precipitation in the Spring in Ault

Probability of Precipitation in the Spring in AultMarAprMay0%0%5%5%10%10%15%15%20%20%25%25%30%30%WinterSummerMay 2528%May 2528%Mar 19%Mar 19%Apr 115%Apr 115%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 in Ault is rapidly increasing, starting the season at 0.3 inches, when it rarely exceeds 0.9 inches, and ending the season at 1.8 inches, when it rarely exceeds 3.2 inches or falls below 0.6 inches.

The highest average 31-day accumulation is 1.9 inches on May 19.

Average Monthly Rainfall in the Spring in Ault

Average Monthly Rainfall in the Spring in AultMarAprMay0.0 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 191.9 inMay 191.9 inMar 10.3 inMar 10.3 inApr 10.7 inApr 10.7 inMay 11.7 inMay 11.7 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 liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day liquid-equivalent snowfall during the spring in Ault is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.6 inches or falling below -0.0 inches.

The highest average 31-day liquid-equivalent accumulation is 0.2 inches on March 19.

Average Monthly Liquid-Equivalent Snowfall in the Spring in Ault

Average Monthly Liquid-Equivalent Snowfall in the Spring in AultMarAprMay0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inWinterSummerMar 190.2 inMar 190.2 inMar 10.2 inMar 10.2 inMay 310.0 inMay 310.0 inApr 10.2 inApr 10.2 inMay 10.1 inMay 10.1 in
The average liquid-equivalent 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.

Sun

Over the course of the spring in Ault, 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, 34 minutes, implying an average daily increase of 2 minutes, 21 seconds, and weekly increase of 16 minutes, 27 seconds.

The shortest day of the spring is March 1, with 11 hours, 19 minutes of daylight and the longest day is May 31, with 14 hours, 52 minutes of daylight.

Hours of Daylight and Twilight in the Spring in Ault

Hours of Daylight and Twilight in the Spring in AultMarAprMay0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerMar 2012 hr, 7 minMar 2012 hr, 7 minnightnightdaydayMay 3114 hr, 52 minMay 3114 hr, 52 minMay 113 hr, 58 minMay 113 hr, 58 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 in Ault is 7:11 AM on March 14 and the earliest sunrise is 1 hour, 41 minutes earlier at 5:30 AM on May 31.

The earliest sunset is 5:50 PM on March 1 and the latest sunset is 2 hours, 32 minutes later at 8:23 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 5:28 AM and sets 15 hours, 5 minutes later, at 8:33 PM, while on December 21, the shortest day of the year, it rises at 7:19 AM and sets 9 hours, 16 minutes later, at 4:35 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring in Ault

Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring in AultMarAprMay2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer5:30 AM5:30 AMMay 318:23 PMMay 318:23 PM6:32 AM6:32 AMMar 15:50 PMMar 15:50 PM6:41 AM6:41 AMApr 17:23 PMApr 17:23 PM5:57 AM5:57 AMMay 17:55 PMMay 17:55 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.

Moon

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 in Ault

Moon Rise, Set & Phases in the Spring in AultMarAprMay12 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 PM7:17 AM7:17 AM5:28 PM5:28 PM5:10 PM5:10 PM7:11 AM7:11 AM6:28 PM6:28 PM6:12 PM6:12 PM7:07 AM7:07 AM7:20 PM7:20 PM7:33 PM7:33 PM6:33 AM6:33 AM5:51 AM5:51 AM8:13 PM8:13 PM7:41 PM7:41 PM5:41 AM5:41 AM9:04 PM9:04 PM7:49 PM7:49 PM5:07 AM5:07 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.

Humidity

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 in Ault is essentially constant during the spring, remaining around 0% throughout.

For reference, on July 18, 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 in Ault

Humidity Comfort Levels in the Spring in AultMarAprMay0%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.

Wind

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 in Ault is decreasing during the spring, decreasing from 9.9 miles per hour to 7.9 miles per hour over the course of the season.

For reference, on January 18, the windiest day of the year, the daily average wind speed is 10.6 miles per hour, while on August 19, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

Average Wind Speed in the Spring in Ault

Average Wind Speed in the Spring in AultMarAprMay0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mphWinterSummerMar 19.9 mphMar 19.9 mphMay 317.9 mphMay 317.9 mphApr 110.1 mphApr 110.1 mphMay 19.1 mphMay 19.1 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Ault during the spring is predominantly out of the west from March 1 to April 25 and from May 18 to May 31 and the north from April 25 to May 18.

Wind Direction in the Spring in Ault

Wind Direction in the Spring in AultWNWMarAprMay0%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).

Growing Season

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 in Ault typically lasts for 5.1 months (157 days), from around May 1 to around October 5, rarely starting before April 12 or after May 19, and rarely ending before September 15 or after October 25.

During the spring in Ault, the chance that a given day is within the growing season is very rapidly increasing rising from 0% to 100% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Ault

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Aultgrowing seasonMarAprMay0%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%100%May 31100%May 31Apr 13%Apr 13%May 149%May 149%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 in Ault are increasing during the spring, increasing by 447°F, from 20°F to 467°F, over the course of the season.

Growing Degree Days in the Spring in Ault

Growing Degree Days in the Spring in AultMarAprMay100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°FWinterSummerMar 120°FMar 120°FMay 31467°FMay 31467°FApr 177°FApr 177°FMay 1205°FMay 1205°F
The average growing degree days accumulated over the course of the spring, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 in Ault is very rapidly increasing during the spring, rising by 3.2 kWh, from 4.3 kWh to 7.4 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Spring in Ault

Average Daily Incident Shortwave Solar Energy in the Spring in AultMarAprMay0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhWinterSummerMar 14.3 kWhMar 14.3 kWhMay 317.4 kWhMay 317.4 kWhApr 15.6 kWhApr 15.6 kWhMay 16.6 kWhMay 16.6 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.

Topography

For the purposes of this report, the geographical coordinates of Ault are 40.582 deg latitude, -104.732 deg longitude, and 4,934 ft elevation.

The topography within 2 miles of Ault contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 4,929 feet. Within 10 miles contains only modest variations in elevation (738 feet). Within 50 miles contains significant variations in elevation (9,219 feet).

The area within 2 miles of Ault is covered by cropland (97%), within 10 miles by cropland (55%) and grassland (40%), and within 50 miles by grassland (59%) and cropland (18%).

Data Sources

This report illustrates the typical weather in Ault, 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

There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Ault.

For each station, the records are corrected for the elevation difference between that station and Ault according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Ault is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ault and a given station.

The stations contributing to this reconstruction are: Greeley-Weld County Airport (KGXY, 54%, 18 kilometers, southeast); Fort Collins-Loveland Municipal Airport (KFNL, 31%, 28 kilometers, southwest); Cheyenne Airport (KCYS, 7%, 64 kilometers, north); Pumpkin Vine (KPUM, 3.5%, 80 kilometers, northwest); and Kimball Municipal Airport-Robert E Arraj Field (KIBM, 4.0%, 112 kilometers, northeast).

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.