Climate and Average Weather Year Round in Ault Colorado, United States
In Ault, the summers are warm and mostly clear and the winters are freezing, dry, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 16°F to 87°F and is rarely below 0°F or above 96°F.
Based on the tourism score, the best time of year to visit Ault for warm-weather activities is from mid June to late August.
Climate in Ault
Average Temperature in Ault
The hot season lasts for 3.3 months, from June 5 to September 15, with an average daily high temperature above 77°F. The hottest day of the year is July 13, with an average high of 87°F and low of 59°F.
The cold season lasts for 3.1 months, from November 21 to February 26, with an average daily high temperature below 48°F. The coldest day of the year is December 30, with an average low of 16°F and high of 38°F.
Average High and Low Temperature in Ault
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Ault
In Ault, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Ault begins around June 3 and lasts for 4.7 months, ending around October 27. On July 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 75% of the time, and overcast or mostly cloudy 25% of the time.
The cloudier part of the year begins around October 27 and lasts for 7.2 months, ending around June 3. On March 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 48% of the time, and clear, mostly clear, or partly cloudy 52% of the time.
Cloud Cover Categories in Ault
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Ault varies throughout the year.
The wetter season lasts 4.5 months, from April 6 to August 23, with a greater than 17% chance of a given day being a wet day. The chance of a wet day peaks at 28% on May 25.
The drier season lasts 7.5 months, from August 23 to April 6. The smallest chance of a wet day is 6% on January 12.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Ault changes throughout the year.
Rain alone is the most common for 9.0 months, from February 18 to November 20. The highest chance of a day with rain alone is 28% on May 26.
Snow alone is the most common for 3.0 months, from November 20 to February 18. The highest chance of a day with snow alone is 5% on December 7.
Daily Chance of Precipitation in Ault
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Ault experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 7.3 months, from March 20 to October 29, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 19, with an average total accumulation of 1.9 inches.
The rainless period of the year lasts for 4.7 months, from October 29 to March 20. The least rain falls around December 19, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall in Ault
The sliding 31-day liquid-equivalent quantity of snowfall in Ault does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall in Ault
The length of the day in Ault varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 16 minutes of daylight; the longest day is June 20, with 15 hours, 5 minutes of daylight.
Hours of Daylight and Twilight in Ault
The earliest sunrise is at 5:27 AM on June 14, and the latest sunrise is 2 hours, 8 minutes later at 7:35 AM on November 6. The earliest sunset is at 4:31 PM on December 7, and the latest sunset is 4 hours, 2 minutes later at 8:33 PM on June 27.
Daylight saving time (DST) is observed in Ault during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.
Sunrise & Sunset with Twilight and Daylight Saving Time in Ault
The figure below presents a compact representation of key lunar data for 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.
Moon Rise, Set & Phases in Ault
The perceived humidity level in Ault, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels in Ault
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Ault experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.9 months, from November 11 to May 8, with average wind speeds of more than 8.7 miles per hour. The windiest day of the year is January 18, with an average hourly wind speed of 10.6 miles per hour.
The calmer time of year lasts for 6.1 months, from May 8 to November 11. The calmest day of the year is August 19, with an average hourly wind speed of 6.8 miles per hour.
Average Wind Speed in Ault
The predominant average hourly wind direction in Ault varies throughout the year.
The wind is most often from the north for 3.3 weeks, from April 25 to May 18, with a peak percentage of 32% on April 29. The wind is most often from the west for 1.4 months, from May 18 to June 29 and for 8.4 months, from August 13 to April 25, with a peak percentage of 28% on May 18. The wind is most often from the east for 1.5 months, from June 29 to August 13, with a peak percentage of 30% on July 30.
Wind Direction in Ault
Best Time of Year to Visit
To characterize how pleasant the weather is in Ault throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Ault for general outdoor tourist activities is from mid June to late August, with a peak score in the first week of July.
Tourism Score in Ault
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Ault for hot-weather activities is from late June to mid August, with a peak score in the second week of July.
Beach/Pool Score in Ault
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
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.
Time Spent in Various Temperature Bands and the Growing Season in Ault
Based on growing degree days alone, the first spring blooms in Ault should appear around April 5, only rarely appearing before March 22 or after April 21.
Growing Degree Days in Ault
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 2.9 months, from May 9 to August 7, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is June 22, with an average of 7.9 kWh.
The darker period of the year lasts for 3.3 months, from November 2 to February 11, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest day of the year is December 21, with an average of 2.3 kWh.
Average Daily Incident Shortwave Solar Energy in Ault
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%).
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).
Time zones for airports and weather stations are provided by AskGeo.com .