April Weather in Anthem United States

Daily high temperatures increase by 8°F, from 77°F to 86°F, rarely falling below 67°F or exceeding 95°F.

Daily low temperatures increase by 7°F, from 53°F to 60°F, rarely falling below 45°F or exceeding 68°F.

For reference, on July 3, the hottest day of the year, temperatures in Anthem typically range from 78°F to 102°F, while on December 26, the coldest day of the year, they range from 42°F to 62°F.

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.

El Oued, Algeria (6,344 miles away) is the far-away foreign place with temperatures most similar to Anthem (view comparison).

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The month of April in Anthem experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 28% to 22%.

The clearest day of the month is April 29, with clear, mostly clear, or partly cloudy conditions 78% of the time.

For reference, on February 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on September 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 86%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Anthem, the chance of a wet day over the course of April is gradually decreasing, starting the month at 7% and ending it at 4%.

For reference, the year's highest daily chance of a wet day is 24% on August 3, and its lowest chance is 1% on June 12.

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 in Anthem is gradually decreasing, starting the month at 0.6 inches, when it rarely exceeds 1.5 inches, and ending the month at 0.2 inches, when it rarely exceeds 0.6 inches.

Over the course of April in Anthem, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 57 minutes, implying an average daily increase of 1 minute, 58 seconds, and weekly increase of 13 minutes, 49 seconds.

The shortest day of the month is April 1, with 12 hours, 35 minutes of daylight and the longest day is April 30, with 13 hours, 32 minutes of daylight.

The latest sunrise of the month in Anthem is 6:15 AM on April 1 and the earliest sunrise is 35 minutes earlier at 5:40 AM on April 30.

The earliest sunset is 6:49 PM on April 1 and the latest sunset is 22 minutes later at 7:11 PM on April 30.

Daylight saving time is not observed in Anthem during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:18 AM and sets 14 hours, 25 minutes later, at 7:42 PM, while on December 21, the shortest day of the year, it rises at 7:30 AM and sets 9 hours, 54 minutes later, at 5:24 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for April 2024. 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.

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 Anthem is essentially constant during April, remaining around 0% throughout.

For reference, on August 4, the muggiest day of the year, there are muggy conditions 13% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Anthem is essentially constant during April, remaining within 0.1 miles per hour of 7.9 miles per hour throughout.

For reference, on April 27, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on August 15, the calmest day of the year, the daily average wind speed is 6.0 miles per hour.

The highest daily average wind speed during April is 8.0 miles per hour on April 27.

The hourly average wind direction in Anthem throughout April is predominantly from the west, with a peak proportion of 37% on April 30.

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).

While it does not do so every year, freezing temperatures are seen in Anthem over some winters. The day least likely to be in the growing season is December 31, with a 59% chance.

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 Anthem are rapidly increasing during April, increasing by 539°F, from 736°F to 1,275°F, over the course of the month.

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 Anthem is increasing during April, rising by 1.1 kWh, from 6.7 kWh to 7.8 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Anthem are 33.867 deg latitude, -112.147 deg longitude, and 1,860 ft elevation.

The topography within 2 miles of Anthem contains significant variations in elevation, with a maximum elevation change of 577 feet and an average elevation above sea level of 1,876 feet. Within 10 miles contains significant variations in elevation (3,097 feet). Within 50 miles contains large variations in elevation (7,159 feet).

The area within 2 miles of Anthem is covered by shrubs (96%), within 10 miles by shrubs (95%), and within 50 miles by shrubs (83%).