April Weather in Fort Lupton Colorado, United States
Daily high temperatures increase by 7°F, from 60°F to 67°F, rarely falling below 43°F or exceeding 79°F.
Daily low temperatures increase by 8°F, from 32°F to 40°F, rarely falling below 22°F or exceeding 49°F.
For reference, on July 13, the hottest day of the year, temperatures in Fort Lupton typically range from 59°F to 89°F, while on December 30, the coldest day of the year, they range from 18°F to 41°F.
Average High and Low Temperature in April in Fort Lupton
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 in Fort Lupton
The month of April in Fort Lupton experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 46% throughout the month.
The clearest day of the month is April 28, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on March 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 47%, while on September 12, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
Cloud Cover Categories in April in Fort Lupton
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. In Fort Lupton, the chance of a wet day over the course of April is rapidly increasing, starting the month at 17% and ending it at 25%.
For reference, the year's highest daily chance of a wet day is 28% on May 23, and its lowest chance is 7% on December 16.
Over the course of April in Fort Lupton, the chance of a day with only rain increases from 10% to 22%, the chance of a day with mixed snow and rain decreases from 5% to 2%, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in April in Fort Lupton
The average sliding 31-day rainfall during April in Fort Lupton is increasing, starting the month at 0.8 inches, when it rarely exceeds 1.8 inches or falls below 0.2 inches, and ending the month at 1.7 inches, when it rarely exceeds 3.3 inches or falls below 0.5 inches.
Average Monthly Rainfall in April in Fort Lupton
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 April in Fort Lupton is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in April in Fort Lupton
Over the course of April in Fort Lupton, 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, 29 seconds, and weekly increase of 17 minutes, 26 seconds.
The shortest day of the month is April 1, with 12 hours, 41 minutes of daylight and the longest day is April 30, with 13 hours, 54 minutes of daylight.
Hours of Daylight and Twilight in April in Fort Lupton
The latest sunrise of the month in Fort Lupton is 6:42 AM on April 1 and the earliest sunrise is 43 minutes earlier at 5:59 AM on April 30.
The earliest sunset is 7:23 PM on April 1 and the latest sunset is 30 minutes later at 7:53 PM on April 30.
Daylight saving time is observed in Fort Lupton during 2021, 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, 2 minutes later, at 8:31 PM, while on December 21, the shortest day of the year, it rises at 7:17 AM and sets 9 hours, 19 minutes later, at 4:37 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April in Fort Lupton
The figure below presents a compact representation of key lunar data for April 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 April in Fort Lupton
The chance that a given day will be muggy in Fort Lupton is essentially constant during April, remaining around 0% throughout.
For reference, on July 20, 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 in Fort Lupton
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Fort Lupton is gradually decreasing during April, decreasing from 9.1 miles per hour to 8.2 miles per hour over the course of the month.
For reference, on January 18, the windiest day of the year, the daily average wind speed is 9.5 miles per hour, while on August 19, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.
The highest daily average wind speed during April is 9.1 miles per hour on April 1.
Average Wind Speed in April in Fort Lupton
The hourly average wind direction in Fort Lupton throughout April is predominantly from the west, with a peak proportion of 41% on April 1.
Wind Direction in April in Fort Lupton
The growing season in Fort Lupton typically lasts for 5.3 months (160 days), from around April 30 to around October 8, rarely starting before April 11 or after May 18, and rarely ending before September 17 or after October 27.
The month of April in Fort Lupton 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 2% to 49% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April in Fort Lupton
The average accumulated growing degree days in Fort Lupton are gradually increasing during April, increasing by 136°F, from 103°F to 239°F, over the course of the month.
Growing Degree Days in April in Fort Lupton
The average daily incident shortwave solar energy in Fort Lupton is gradually increasing during April, rising by 1.0 kWh, from 5.7 kWh to 6.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April in Fort Lupton
For the purposes of this report, the geographical coordinates of Fort Lupton are 40.085 deg latitude, -104.813 deg longitude, and 4,905 ft elevation.
The topography within 2 miles of Fort Lupton contains only modest variations in elevation, with a maximum elevation change of 141 feet and an average elevation above sea level of 4,916 feet. Within 10 miles also contains only modest variations in elevation (472 feet). Within 50 miles contains only modest variations in elevation (9,928 feet).
The area within 2 miles of Fort Lupton is covered by cropland (52%), grassland (30%), and shrubs (14%), within 10 miles by grassland (44%) and cropland (35%), and within 50 miles by grassland (39%) and cropland (21%).
This report illustrates the typical weather in Fort Lupton, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Fort Lupton.
For each station, the records are corrected for the elevation difference between that station and Fort Lupton 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 Fort Lupton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Fort Lupton and a given station.
The stations contributing to this reconstruction are: Erie Municipal (KEIK, 44%, 22 kilometers, west); Denver International Airport (KDEN, 23%, 31 kilometers, southeast); Greeley-Weld County Airport (KGXY, 17%, 42 kilometers, north); and Fort Collins-Loveland Municipal Airport (KFNL, 16%, 44 kilometers, northwest).
Time zones for airports and weather stations are provided by AskGeo.com .