Average Weather in Yass Australia

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2. Australia
3. New South Wales
4. Yass Valley
5. Yass

In Yass, the summers are warm and mostly clear and the winters are cold and partly cloudy. Over the course of the year, the temperature typically varies from 35°F to 85°F and is rarely below 26°F or above 96°F.

The warm season lasts for 3.3 months, from December 3 to March 13, with an average daily high temperature above 78°F. The hottest day of the year is January 25, with an average high of 85°F and low of 60°F.

The cool season lasts for 3.4 months, from May 24 to September 5, with an average daily high temperature below 59°F. The coldest day of the year is July 19, with an average low of 35°F and high of 52°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

In Yass, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Yass begins around August 10 and lasts for 9.1 months, ending around May 12. On March 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.

The cloudier part of the year begins around May 12 and lasts for 2.9 months, ending around August 10. On June 24, the cloudiest day of the year, the sky is overcast or mostly cloudy 49% of the time, and clear, mostly clear, or partly cloudy 51% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Yass varies throughout the year.

The wetter season lasts 6.8 months, from May 26 to December 21, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 25% on August 10.

The drier season lasts 5.2 months, from December 21 to May 26. The smallest chance of a wet day is 13% on April 30.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 25% on August 30.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Yass experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Yass. The most rain falls during the 31 days centered around November 29, with an average total accumulation of 2.2 inches.

The least rain falls around April 26, with an average total accumulation of 1.4 inches.

The length of the day in Yass varies significantly over the course of the year. In 2017, the shortest day is June 21, with 9 hours, 49 minutes of daylight; the longest day is December 21, with 14 hours, 30 minutes of daylight.

The earliest sunrise is at 5:42 AM on September 30, and the latest sunrise is 1 hour, 34 minutes later at 7:16 AM on April 1. The earliest sunset is at 4:59 PM on June 13, and the latest sunset is 3 hours, 22 minutes later at 8:21 PM on January 7.

Daylight saving time (DST) is observed in Yass during 2017, starting in the spring on October 1 and ending in the fall on April 2.

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 perceived humidity level in Yass, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.

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 Yass experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.5 months, from July 31 to March 16, with average wind speeds of more than 4.2 miles per hour. The windiest day of the year is January 18, with an average hourly wind speed of 4.7 miles per hour.

The calmer time of year lasts for 4.5 months, from March 16 to July 31. The calmest day of the year is May 21, with an average hourly wind speed of 3.7 miles per hour.

The predominant average hourly wind direction in Yass varies throughout the year.

The wind is most often from the east for 3.6 months, from January 2 to April 21, with a peak percentage of 54% on February 25. The wind is most often from the west for 8.4 months, from April 21 to January 2, with a peak percentage of 40% on January 1.

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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from November 2 to February 16, with an average daily incident shortwave energy per square meter above 7.1 kWh. The brightest day of the year is December 30, with an average of 8.3 kWh.

The darker period of the year lasts for 3.3 months, from May 6 to August 14, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is June 24, with an average of 2.3 kWh.

For the purposes of this report, the geographical coordinates of Yass are -34.840 deg latitude, 148.910 deg longitude, and 1,699 ft elevation.

The topography within 2 miles of Yass contains only modest variations in elevation, with a maximum elevation change of 463 feet and an average elevation above sea level of 1,680 feet. Within 10 miles contains only modest variations in elevation (1,532 feet). Within 50 miles contains very significant variations in elevation (5,092 feet).

The area within 2 miles of Yass is covered by cropland (54%), artificial surfaces (23%), and sparse vegetation (20%), within 10 miles by cropland (59%) and sparse vegetation (28%), and within 50 miles by cropland (46%) and sparse vegetation (31%).

This report illustrates the typical weather in Yass, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Yass.

For each station, the records are corrected for the elevation difference between that station and Yass according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Yass is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Yass and a given station.

The stations contributing to this reconstruction are: Canberra International Airport (79%, 58 kilometers, southeast) and Wagga Airport (21%, 137 kilometers, west).

Other Data

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.