Climate and Average Weather Year Round in Muswellbrook Australia

In Muswellbrook, the summers are hot, the winters are short and cold, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 37°F to 89°F and is rarely below 30°F or above 100°F.

Based on the tourism score, the best time of year to visit Muswellbrook for warm-weather activities is from early December to mid March.

The hot season lasts for 3.7 months, from November 22 to March 12, with an average daily high temperature above 83°F. The hottest month of the year in Muswellbrook is January, with an average high of 88°F and low of 63°F.

The cool season lasts for 2.9 months, from May 23 to August 21, with an average daily high temperature below 66°F. The coldest month of the year in Muswellbrook is July, with an average low of 37°F and high of 61°F.

In Muswellbrook, 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 Muswellbrook begins around July 16 and lasts for 3.0 months, ending around October 15.

The clearest month of the year in Muswellbrook is August, during which on average the sky is clear, mostly clear, or partly cloudy 79% of the time.

The cloudier part of the year begins around October 15 and lasts for 9.0 months, ending around July 16.

The cloudiest month of the year in Muswellbrook is November, during which on average the sky is overcast or mostly cloudy 35% 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 Muswellbrook varies throughout the year.

The wetter season lasts 5.3 months, from October 15 to March 25, with a greater than 22% chance of a given day being a wet day. The month with the most wet days in Muswellbrook is February, with an average of 8.0 days with at least 0.04 inches of precipitation.

The drier season lasts 6.7 months, from March 25 to October 15. The month with the fewest wet days in Muswellbrook is August, with an average of 4.9 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Muswellbrook is February, with an average of 8.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 29% on February 1.

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. Muswellbrook experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Muswellbrook. The month with the most rain in Muswellbrook is February, with an average rainfall of 3.3 inches.

The month with the least rain in Muswellbrook is July, with an average rainfall of 1.4 inches.

The length of the day in Muswellbrook varies significantly over the course of the year. In 2024, the shortest day is June 21, with 10 hours, 2 minutes of daylight; the longest day is December 21, with 14 hours, 16 minutes of daylight.

The earliest sunrise is at 5:28 AM on October 5, and the latest sunrise is 1 hour, 43 minutes later at 7:11 AM on April 6. The earliest sunset is at 4:58 PM on June 11, and the latest sunset is 3 hours, 9 minutes later at 8:07 PM on January 9.

Daylight saving time (DST) is observed in Muswellbrook during 2024, starting in the spring on October 6 and ending in the fall on April 7.

The figure below presents a compact representation of key lunar data for 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.

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.

Muswellbrook experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.4 months, from December 2 to March 16, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The month with the most muggy days in Muswellbrook is January, with 5.3 days that are muggy or worse.

The least muggy day of the year is July 9, 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 Muswellbrook experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.8 months, from June 18 to March 12, with average wind speeds of more than 5.4 miles per hour. The windiest month of the year in Muswellbrook is January, with an average hourly wind speed of 5.9 miles per hour.

The calmer time of year lasts for 3.2 months, from March 12 to June 18. The calmest month of the year in Muswellbrook is April, with an average hourly wind speed of 4.9 miles per hour.

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

The wind is most often from the west for 5.7 months, from May 3 to October 24, with a peak percentage of 49% on August 10. The wind is most often from the east for 6.3 months, from October 24 to May 3, with a peak percentage of 46% on January 1.

Muswellbrook 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.6 months, from December 31 to April 16, with an average temperature above 72°F. The month of the year in Muswellbrook with the warmest water is February, with an average temperature of 73°F.

The time of year with cooler water lasts for 3.7 months, from June 26 to October 18, with an average temperature below 66°F. The month of the year in Muswellbrook with the coolest water is August, with an average temperature of 64°F.

To characterize how pleasant the weather is in Muswellbrook throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Muswellbrook for general outdoor tourist activities is from early December to mid March, with a peak score in the third week of January.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Muswellbrook for hot-weather activities is from early January to mid February, with a peak score in the last week of January.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Muswellbrook typically lasts for 9.5 months (288 days), from around August 23 to around June 6, rarely starting before August 4 or after September 12, and rarely ending before May 3 or after July 1.

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.

Based on growing degree days alone, the first spring blooms in Muswellbrook should appear around August 2, only rarely appearing before July 27 or after August 8.

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 1 to February 15, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest month of the year in Muswellbrook is December, with an average of 7.8 kWh.

The darker period of the year lasts for 3.1 months, from May 3 to August 6, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest month of the year in Muswellbrook is June, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Muswellbrook are -32.261 deg latitude, 150.890 deg longitude, and 538 ft elevation.

The topography within 2 miles of Muswellbrook contains significant variations in elevation, with a maximum elevation change of 525 feet and an average elevation above sea level of 545 feet. Within 10 miles contains significant variations in elevation (1,962 feet). Within 50 miles contains very significant variations in elevation (5,335 feet).

The area within 2 miles of Muswellbrook is covered by cropland (43%), trees (27%), sparse vegetation (15%), and artificial surfaces (14%), within 10 miles by sparse vegetation (50%) and trees (25%), and within 50 miles by trees (63%) and sparse vegetation (21%).