Spring Weather in Dalby Australia

Daily high temperatures increase by 14°F, from 72°F to 86°F, rarely falling below 64°F or exceeding 94°F.

Daily low temperatures increase by 18°F, from 45°F to 63°F, rarely falling below 36°F or exceeding 69°F.

For reference, on January 17, the hottest day of the year, temperatures in Dalby typically range from 67°F to 89°F, while on July 28, the coldest day of the year, they range from 39°F to 66°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.

Chilecito, Argentina (7,784 miles away); Jan Kempdorp, South Africa (7,238 miles); and Kathmandu, Nepal (5,793 miles) are the far-away foreign places with temperatures most similar to Dalby (view comparison).

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The spring in Dalby experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 13% to 31%.

The clearest day of the spring is September 14, with clear, mostly clear, or partly cloudy conditions 88% of the time.

For reference, on January 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 34%, while on August 12, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dalby, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 14% and ending it at 27%.

For reference, the year's highest daily chance of a wet day is 29% on December 13, and its lowest chance is 8% on June 20.

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 Dalby is rapidly increasing, starting the season at 1.1 inches, when it rarely exceeds 2.2 inches or falls below 0.1 inches, and ending the season at 2.9 inches, when it rarely exceeds 5.0 inches or falls below 1.0 inches.

Over the course of the spring in Dalby, 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, 9 minutes, implying an average daily increase of 1 minute, 26 seconds, and weekly increase of 10 minutes, 2 seconds.

The shortest day of the spring is September 1, with 11 hours, 34 minutes of daylight and the longest day is November 30, with 13 hours, 43 minutes of daylight.

The latest sunrise of the spring in Dalby is 6:08 AM on September 1 and the earliest sunrise is 1 hour, 16 minutes earlier at 4:52 AM on November 30.

The earliest sunset is 5:41 PM on September 1 and the latest sunset is 53 minutes later at 6:35 PM on November 30.

Daylight saving time is not observed in Dalby during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 4:57 AM and sets 13 hours, 52 minutes later, at 6:48 PM, while on June 20, the shortest day of the year, it rises at 6:43 AM and sets 10 hours, 26 minutes later, at 5:09 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 Dalby is rapidly increasing during the spring, rising from 0% to 10% over the course of the season.

For reference, on February 6, the muggiest day of the year, there are muggy conditions 26% 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 Dalby is gradually increasing during the spring, increasing from 9.3 miles per hour to 10.0 miles per hour over the course of the season.

For reference, on February 26, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on May 19, the calmest day of the year, the daily average wind speed is 8.4 miles per hour.

The hourly average wind direction in Dalby throughout the spring is predominantly from the east, with a peak proportion of 43% on November 15.

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).

The growing season in Dalby typically lasts for 9.9 months (299 days), from around August 15 to around June 10, rarely starting before July 19 or after September 12, and rarely ending before May 14 or after July 6.

The spring in Dalby is very likely fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 79% to 100% over the course of the season.

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 Dalby are very rapidly increasing during the spring, increasing by 1,572°F, from 399°F to 1,971°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 Dalby is very rapidly increasing during the spring, rising by 2.1 kWh, from 5.5 kWh to 7.6 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Dalby are -27.182 deg latitude, 151.262 deg longitude, and 1,125 ft elevation.

The topography within 2 miles of Dalby is essentially flat, with a maximum elevation change of 89 feet and an average elevation above sea level of 1,122 feet. Within 10 miles is essentially flat (358 feet). Within 50 miles contains only modest variations in elevation (2,805 feet).

The area within 2 miles of Dalby is covered by sparse vegetation (33%), cropland (29%), and artificial surfaces (27%), within 10 miles by cropland (81%), and within 50 miles by sparse vegetation (48%) and cropland (34%).