December weather forecast
Mount Crosby, Australia

December

Weather in December

December, the first month of the summer in Mount Crosby, is still a warm month, with an average temperature varying between 28.9°C (84°F) and 18.4°C (65.1°F).

Temperature

December's average high-temperature stands at a still moderately hot 28.9°C (84°F), showing little deviation from November's 28.4°C (83.1°F). An average minimum temperature of 18.4°C (65.1°F) marks the month of December.

Heat index

The heat index for December is computed to be a hot 33°C (91.4°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The average relative humidity in December is 74%.

Rainfall

In Mount Crosby, in December, it is raining for 16.6 days, with typically 57mm (2.24") of accumulated precipitation. In Mount Crosby, during the entire year, the rain falls for 155.1 days and collects up to 433mm (17.05") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h and 48min of daylight.
On the first day of the month, sunrise is at 4:45 am and sunset at 6:30 pm. On the last day of December, sunrise is at 4:56 am and sunset at 6:47 pm AEST.

Sunshine

The average sunshine in December is 9.6h.

UV index

The months with the highest UV index in Mount Crosby are January through March, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

How hot is December?
The average high-temperature and low-temperature during December are 28.9°C (84°F) and 18.4°C (65.1°F) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in December is computed to be 33°C (91.4°F).
What is the average humidity in December?
In Mount Crosby, the average relative humidity in December is 74%.
How much does it rain in December?
In Mount Crosby, in December, it is raining for 16.6 days, with typically 57mm (2.24") of accumulated precipitation.
When are the longest days?
The month with the longest days is December, with an average of 13h and 48min of daylight.
How many hours of daylight does Mount Crosby have in December?
In Mount Crosby, the average day length in December is 13h and 51min.
When is the sunrise / sunset in December?
On the first day of December in Mount Crosby, sunrise is at 4:45 am and sunset at 6:30 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 6:47 pm AEST.
How many hours of sunshine does Mount Crosby have in December?
In Mount Crosby, the average sunshine duration in December is 9.6h.
What are the months with the highest UV index?
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Mount Crosby.
What is the UV index intensity in December?
In Mount Crosby, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Mount Crosby, Australia
Average temperature in December
Mount Crosby, Australia
  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is January (29.3°C).
The month with the lowest average high temperature is July (19.1°C).

  • Average low temperature in December: 18.4°C

The months with the highest average low temperature are January and February (19.5°C).
The coldest month (with the lowest average low temperature) is July (9.4°C).

Average pressure in December - Mount Crosby, Australia
Average pressure in December
Mount Crosby, Australia
  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).

Average wind speed in December - Mount Crosby, Australia
Average wind speed in December
Mount Crosby, Australia
  • Average wind speed in December: 10.2km/h

The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).

Average humidity in December - Mount Crosby, Australia
Average humidity in December
Mount Crosby, Australia
  • Average humidity in December: 74%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is September (69%).

Average rainfall in December - Mount Crosby, Australia
Average rainfall in December
Mount Crosby, Australia
  • Average rainfall in December: 57mm

The wettest month (with the highest rainfall) is January (69mm).
The driest month (with the least rainfall) is July (12mm).

Average rainfall days in December - Mount Crosby, Australia
Average rainfall days in December
Mount Crosby, Australia
  • Average rainfall days in December: 16.6 days

The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (6.6 days).

Average daylight in December / Average sunshine in December - Mount Crosby, Australia
Average daylight in December /
Average sunshine in December
Mount Crosby, Australia
  • Average daylight in December: 13h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 24min).

  • Average sunshine in December: 9h and 4min

The month with the most sunshine is November (Average sunshine: 10h and 36min).
The month with the least sunshine is June (Average sunshine: 6h and 24min).

Average sunshine days in December - Mount Crosby, Australia
Average sunshine days in December
Mount Crosby, Australia
  • Average sunshine days in December: 11.3 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.6 days).

Average UV index in December - Mount Crosby, Australia
Average UV index in December
Mount Crosby, Australia
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).

Average cloud cover in December - Mount Crosby, Australia
Average cloud cover in December
Mount Crosby, Australia
  • Average cloud cover in December: 41

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December - Mount Crosby, Australia
Average visibility in December
Mount Crosby, Australia
  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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