Average Weather in Narrabri Australia

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5. Narrabri

In Narrabri, the summers are long and hot, the winters are cold, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 41°F to 95°F and is rarely below 35°F or above 103°F.

The hot season lasts for 4.0 months, from November 19 to March 19, with an average daily high temperature above 88°F. The hottest day of the year is January 18, with an average high of 95°F and low of 68°F.

The cool season lasts for 3.0 months, from May 26 to August 27, with an average daily high temperature below 69°F. The coldest day of the year is July 28, with an average low of 41°F and high of 64°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 Narrabri, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Narrabri begins around July 12 and lasts for 3.1 months, ending around October 15. On August 13, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 85% of the time, and overcast or mostly cloudy 15% of the time.

The cloudier part of the year begins around October 15 and lasts for 8.9 months, ending around July 12. On November 25, the cloudiest day of the year, the sky is overcast or mostly cloudy 33% of the time, and clear, mostly clear, or partly cloudy 67% 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 Narrabri varies throughout the year.

The wetter season lasts 4.2 months, from October 21 to February 27, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 26% on November 30.

The drier season lasts 7.8 months, from February 27 to October 21. The smallest chance of a wet day is 11% on August 13.

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 26% on November 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. Narrabri experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Narrabri. The most rain falls during the 31 days centered around January 29, with an average total accumulation of 2.8 inches.

The least rain falls around August 10, with an average total accumulation of 1.3 inches.

The length of the day in Narrabri varies significantly over the course of the year. In 2017, the shortest day is June 21, with 10 hours, 11 minutes of daylight; the longest day is December 21, with 14 hours, 7 minutes of daylight.

The earliest sunrise is at 5:40 AM on September 30, and the latest sunrise is 1 hour, 31 minutes later at 7:11 AM on April 1. The earliest sunset is at 5:07 PM on June 10, and the latest sunset is 3 hours, 0 minutes later at 8:07 PM on January 9.

Daylight saving time (DST) is observed in Narrabri 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.

Narrabri experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.8 months, from November 23 to March 18, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The muggiest day of the year is February 4, with muggy conditions 17% of the time.

The least muggy day of the year is July 5, when muggy conditions are essentially unheard of.

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

The windier part of the year lasts for 5.6 months, from September 2 to February 18, with average wind speeds of more than 4.3 miles per hour. The windiest day of the year is November 27, with an average hourly wind speed of 4.9 miles per hour.

The calmer time of year lasts for 6.5 months, from February 18 to September 2. The calmest day of the year is April 28, with an average hourly wind speed of 3.8 miles per hour.

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

The wind is most often from the east for 3.9 months, from January 17 to May 15, with a peak percentage of 40% on February 26. The wind is most often from the south for 2.7 months, from May 15 to August 7, with a peak percentage of 33% on June 8. The wind is most often from the north for 4.1 months, from September 14 to January 17, with a peak percentage of 34% 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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.7 months, from October 27 to February 18, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest day of the year is December 27, with an average of 8.0 kWh.

The darker period of the year lasts for 3.0 months, from May 5 to August 6, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is June 17, with an average of 3.1 kWh.

For the purposes of this report, the geographical coordinates of Narrabri are -30.325 deg latitude, 149.783 deg longitude, and 705 ft elevation.

The topography within 2 miles of Narrabri is essentially flat, with a maximum elevation change of 66 feet and an average elevation above sea level of 703 feet. Within 10 miles is essentially flat (650 feet). Within 50 miles contains significant variations in elevation (4,432 feet).

The area within 2 miles of Narrabri is covered by sparse vegetation (34%), artificial surfaces (28%), cropland (25%), and trees (12%), within 10 miles by sparse vegetation (51%) and cropland (28%), and within 50 miles by sparse vegetation (41%) and cropland (33%).

This report illustrates the typical weather in Narrabri, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Narrabri is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Narrabri, according to the International Standard Atmosphere .

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.

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.