April Weather in Wallaroo Australia

Daily high temperatures decrease by 5°F, from 73°F to 68°F, rarely falling below 61°F or exceeding 84°F.

Daily low temperatures decrease by 5°F, from 58°F to 54°F, rarely falling below 48°F or exceeding 65°F.

For reference, on January 24, the hottest day of the year, temperatures in Wallaroo typically range from 65°F to 80°F, while on July 27, the coldest day of the year, they range from 46°F to 59°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.

Montevideo, Uruguay (7,605 miles away) is the far-away foreign place with temperatures most similar to Wallaroo (view comparison).

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The month of April in Wallaroo experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 32% throughout the month.

The clearest day of the month is April 1, with clear, mostly clear, or partly cloudy conditions 70% of the time.

For reference, on May 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 36%, while on September 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Wallaroo, the chance of a wet day over the course of April is increasing, starting the month at 7% and ending it at 12%.

For reference, the year's highest daily chance of a wet day is 22% on June 23, and its lowest chance is 5% on January 5.

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 Wallaroo is essentially constant, remaining about 0.6 inches throughout, and rarely exceeding 1.6 inches.

Over the course of April in Wallaroo, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 57 minutes, implying an average daily decrease of 1 minute, 57 seconds, and weekly decrease of 13 minutes, 41 seconds.

The shortest day of the month is April 30, with 10 hours, 46 minutes of daylight and the longest day is April 1, with 11 hours, 43 minutes of daylight.

The latest sunrise of the month in Wallaroo is 7:35 AM on April 6 and the earliest sunrise is 59 minutes earlier at 6:36 AM on April 7.

The latest sunset is 7:14 PM on April 1 and the earliest sunset is 1 hour, 35 minutes earlier at 5:39 PM on April 30.

Daylight saving time (DST) starts at 2:00 AM on April 7, 2024, shifting sunrise and sunset to be an hour later.

For reference, on December 21, the longest day of the year, the Sun rises at 6:05 AM and sets 14 hours, 25 minutes later, at 8:30 PM, while on June 20, the shortest day of the year, it rises at 7:24 AM and sets 9 hours, 54 minutes later, at 5:17 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 Wallaroo is essentially constant during April, remaining around 1% throughout.

For reference, on February 11, the muggiest day of the year, there are muggy conditions 5% of the time, while on May 23, 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 Wallaroo is gradually decreasing during April, decreasing from 11.8 miles per hour to 11.1 miles per hour over the course of the month.

For reference, on January 16, the windiest day of the year, the daily average wind speed is 13.9 miles per hour, while on April 30, the calmest day of the year, the daily average wind speed is 11.1 miles per hour.

The lowest daily average wind speed during April is 11.1 miles per hour on April 30.

The hourly average wind direction in Wallaroo throughout April is predominantly from the south, with a peak proportion of 46% on April 1.

Wallaroo is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Wallaroo is gradually decreasing during April, falling by 3°F, from 69°F to 65°F, over the course of the month.

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).

Temperatures in Wallaroo are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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 Wallaroo are increasing during April, increasing by 382°F, from 3,740°F to 4,122°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 Wallaroo is decreasing during April, falling by 1.4 kWh, from 5.0 kWh to 3.7 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Wallaroo are -33.939 deg latitude, 137.634 deg longitude, and 79 ft elevation.

The topography within 2 miles of Wallaroo contains only modest variations in elevation, with a maximum elevation change of 167 feet and an average elevation above sea level of 67 feet. Within 10 miles also contains only modest variations in elevation (308 feet). Within 50 miles contains only modest variations in elevation (1,470 feet).

The area within 2 miles of Wallaroo is covered by cropland (49%), water (16%), artificial surfaces (14%), and sparse vegetation (13%), within 10 miles by cropland (56%) and water (37%), and within 50 miles by water (49%) and cropland (42%).