POLICY CHANGE

The hot season lasts for 3.7 months, from 23 November to 13 March, with an average daily high temperature above 28°C. The hottest day of the year is 25 January, with an average high of 32°C and low of 17°C.

The cool season lasts for 2.9 months, from 25 May to 22 August, with an average daily high temperature below 19°C. The coldest day of the year is 30 July, with an average low of 3°C and high of 17°C.

The topography within 3 kilometres of Muswellbrook contains significant variations in elevation, with a maximum elevation change of 160 metres and an average elevation above sea level of 166 metres. Within 16 kilometres contains significant variations in elevation (598 metres). Within 80 kilometres contains very significant variations in elevation (1,626 metres).

The area within 3 kilometres of Muswellbrook is covered by cropland (43%), trees (27%), sparse vegetation (15%), and artificial surfaces (14%), within 16 kilometres by sparse vegetation (50%) and trees (25%), and within 80 kilometres by trees (63%) and sparse vegetation (21%).

A wet day is one with at least 1 millimetre 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 16 October to 26 March, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 29% on 1 February.

Rain falls throughout the year in Muswellbrook. The most rain falls during the 31 days centered around 8 February, with an average total accumulation of 87 millimetres.

The least rain falls around 6 July, with an average total accumulation of 35 millimetres.

SITE ANALYSIS

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 17 July and lasts for 3.0 months, ending around 16 October. On 13 August, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 80% of the time, and overcast or mostly cloudy 20% of the time.

The cloudier part of the year begins around 16 October and lasts for 9.0 months, ending around 17 July. On 23 November, the cloudiest day of the year, the sky is overcast or mostly cloudy 36% of the time, and clear, mostly clear, or partly cloudy 64% of the time.

SUN

The length of the day in Muswellbrook varies significantly over the course of the year. In 2021, the shortest day is 21 June, with 10 hours, 2 minutes of daylight; the longest day is 22 December, with 14 hours, 16 minutes of daylight.

HUMIDITY

Muswellbrook experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.4 months, from 3 December to 17 March, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The muggiest day of the year is 6 February, with muggy conditions 22% of the time.

The least muggy day of the year is 10 July, when muggy conditions are essentially unheard of.

WIND

The windier part of the year lasts for 8.8 months, from 19 June to 14 March, with average wind speeds of more than 8.7 kilometres per hour. The windiest day of the year is 18 January, with an average hourly wind speed of 9.6 kilometres per hour.

The wind is most often from the west for 5.7 months, from 4 May to 25 October, with a peak percentage of 49% on 11 August. The wind is most often from the east for 6.3 months, from 25 October to 4 May, with a peak percentage of 46% on 1 January.

The brighter period of the year lasts for 3.4 months, from 2 November to 15 February, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is 30 December, with an average of 7.9 kWh.

The darker period of the year lasts for 3.1 months, from 4 May to 7 August, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest day of the year is 17 June, with an average of 2.7 kWh. The calmer time of year lasts for 3.2 months, from 14 March to 19 June. The calmest day of the year is 28 April, with an average hourly wind speed of 7.8 kilometres per hour.