Spring Weather in Waroona Australia

Daily high temperatures increase by 14°F, from 64°F to 78°F, rarely falling below 58°F or exceeding 89°F.

Daily low temperatures increase by 10°F, from 46°F to 56°F, rarely falling below 37°F or exceeding 63°F.

For reference, on January 28, the hottest day of the year, temperatures in Waroona typically range from 62°F to 87°F, while on July 18, the coldest day of the year, they range from 44°F to 61°F.

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.

La Crescenta-Montrose, United States (9,364 miles away); Velázquez, Uruguay (7,781 miles); and Pontével, Portugal (9,376 miles) are the far-away foreign places with temperatures most similar to Waroona (view comparison).

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The spring in Waroona experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 22% throughout the season.

The clearest day of the spring is October 16, with clear, mostly clear, or partly cloudy conditions 80% of the time.

For reference, on May 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 34%, while on January 20, 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 Waroona, the chance of a wet day over the course of the spring is very rapidly decreasing, starting the season at 35% and ending it at 8%.

For reference, the year's highest daily chance of a wet day is 45% on July 12, and its lowest chance is 4% on December 29.

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 Waroona is very rapidly decreasing, starting the season at 3.4 inches, when it rarely exceeds 5.1 inches or falls below 1.7 inches, and ending the season at 0.6 inches, when it rarely exceeds 1.4 inches.

Over the course of the spring in Waroona, 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 2 hours, 43 minutes, implying an average daily increase of 1 minute, 48 seconds, and weekly increase of 12 minutes, 39 seconds.

The shortest day of the spring is September 1, with 11 hours, 26 minutes of daylight and the longest day is November 30, with 14 hours, 8 minutes of daylight.

The latest sunrise of the spring in Waroona is 6:33 AM on September 1 and the earliest sunrise is 1 hour, 33 minutes earlier at 5:01 AM on November 30.

The earliest sunset is 5:59 PM on September 1 and the latest sunset is 1 hour, 10 minutes later at 7:09 PM on November 30.

Daylight saving time is not observed in Waroona during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:04 AM and sets 14 hours, 19 minutes later, at 7:24 PM, while on June 20, the shortest day of the year, it rises at 7:18 AM and sets 9 hours, 59 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 the spring of 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 Waroona is essentially constant during the spring, remaining around 0% throughout.

For reference, on February 14, the muggiest day of the year, there are muggy conditions 4% of the time, while on May 30, 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 Waroona is increasing during the spring, increasing from 11.9 miles per hour to 13.4 miles per hour over the course of the season.

For reference, on January 23, the windiest day of the year, the daily average wind speed is 13.8 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 the spring is 11.8 miles per hour on October 8.

The wind direction in Waroona during the spring is predominantly out of the west from September 1 to October 11 and the south from October 11 to November 30.

Waroona 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 Waroona is increasing during the spring, rising by 4°F, from 64°F to 68°F, over the course of the season.

The lowest average surface water temperature during the spring is 64°F on September 21.

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 Waroona over some winters. The day least likely to be in the growing season is July 15, with a 53% 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 Waroona are very rapidly increasing during the spring, increasing by 939°F, from 290°F to 1,229°F, over the course of the season.

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 Waroona is very rapidly increasing during the spring, rising by 4.2 kWh, from 4.2 kWh to 8.4 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Waroona are -32.843 deg latitude, 115.922 deg longitude, and 135 ft elevation.

The topography within 2 miles of Waroona contains significant variations in elevation, with a maximum elevation change of 774 feet and an average elevation above sea level of 185 feet. Within 10 miles contains significant variations in elevation (1,608 feet). Within 50 miles contains very significant variations in elevation (2,106 feet).

The area within 2 miles of Waroona is covered by cropland (60%) and trees (28%), within 10 miles by cropland (51%) and trees (39%), and within 50 miles by trees (39%) and water (33%).