Average Weather in October in Roxby Downs Australia
Daily high temperatures increase by 6°F, from 78°F to 83°F, rarely falling below 67°F or exceeding 97°F.
Daily low temperatures increase by 5°F, from 55°F to 60°F, rarely falling below 47°F or exceeding 71°F.
For reference, on January 12, the hottest day of the year, temperatures in Roxby Downs typically range from 71°F to 95°F, while on July 8, the coldest day of the year, they range from 44°F to 63°F.
Average High and Low Temperature in October
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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 October
Wildwood, Texas, United States (9,420 miles away) and Thomasville, Georgia, United States (10,033 miles) are the far-away foreign places with temperatures most similar to Roxby Downs (view comparison).
The month of October in Roxby Downs experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 15% to 28%.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 85% of the time.
For reference, on November 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 30%, while on August 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.
Cloud Cover Categories in October
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Roxby Downs, the chance of a wet day over the course of October is essentially constant, remaining around 6% throughout.
For reference, the year's highest daily chance of a wet day is 9% on June 2, and its lowest chance is 4% on April 10.
Probability of Precipitation in October
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 October in Roxby Downs is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.3 inches or falling below -0.0 inches.
Average Monthly Rainfall in October
Over the course of October in Roxby Downs, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 54 minutes, implying an average daily increase of 1 minute, 47 seconds, and weekly increase of 12 minutes, 31 seconds.
The shortest day of the month is October 1, with 12 hours, 22 minutes of daylight and the longest day is October 31, with 13 hours, 16 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in Roxby Downs is 5:55 AM on October 6 and the latest sunrise is 59 minutes later at 6:53 AM on October 7.
The earliest sunset is 6:23 PM on October 1 and the latest sunset is 1 hour, 21 minutes later at 7:44 PM on October 31.
Daylight saving time (DST) starts at 3:00 AM on October 7, 2018, shifting sunrise and sunset to be an hour later.
For reference, on December 21, the longest day of the year, the Sun rises at 6:16 AM and sets 14 hours, 8 minutes later, at 8:24 PM, while on June 21, the shortest day of the year, it rises at 7:19 AM and sets 10 hours, 10 minutes later, at 5:29 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October
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 Roxby Downs is essentially constant during October, remaining around 0% throughout.
For reference, on January 24, the muggiest day of the year, there are muggy conditions 4% of the time, while on May 13, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in October
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 Roxby Downs is essentially constant during October, remaining within 0.1 miles per hour of 11.7 miles per hour throughout.
For reference, on November 27, the windiest day of the year, the daily average wind speed is 11.8 miles per hour, while on May 19, the calmest day of the year, the daily average wind speed is 8.6 miles per hour.
Average Wind Speed in October
Wind Direction in October
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 Roxby Downs 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.
Time Spent in Various Temperature Bands and the Growing Season in October
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 Roxby Downs are rapidly increasing during October, increasing by 571°F, from 810°F to 1,381°F, over the course of the month.
Growing Degree Days in October
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 Roxby Downs is gradually increasing during October, rising by 0.9 kWh, from 6.6 kWh to 7.5 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in October
For the purposes of this report, the geographical coordinates of Roxby Downs are -30.563 deg latitude, 136.895 deg longitude, and 351 ft elevation.
The topography within 2 miles of Roxby Downs contains only modest variations in elevation, with a maximum elevation change of 108 feet and an average elevation above sea level of 359 feet. Within 10 miles also contains only modest variations in elevation (315 feet). Within 50 miles contains only modest variations in elevation (741 feet).
The area within 2 miles of Roxby Downs is covered by sparse vegetation (80%) and artificial surfaces (19%), within 10 miles by sparse vegetation (83%) and grassland (12%), and within 50 miles by sparse vegetation (77%) and grassland (13%).
This report illustrates the typical weather in Roxby Downs year round, 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 is only a single weather station, RAAF Woomera Airfield, in our network suitable to be used as a proxy for the historical temperature and dew point records of Roxby Downs.
At a distance of 65 kilometers from Roxby Downs, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Roxby Downs according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.