Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December registers an average high-temperature of a moderately hot 25.3°C (77.5°F), slightly varied from November's 22.9°C (73.2°F). Mount Wilson, in December, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 12.7°C (54.9°F).Humidity
December is the least humid month, with an average relative humidity of 68%.Rainfall
In Mount Wilson, Australia, in December, it is raining for 14.9 days, with typically 54mm (2.13") of accumulated precipitation. In Mount Wilson, Australia, during the entire year, the rain falls for 155.1 days and collects up to 548mm (21.57") of precipitation.Snowfall
In Mount Wilson, snow does not fall in January through May, November and December.Daylight
December has the longest days of the year, with an average of 14h and 18min of daylight.On the first day of December in Mount Wilson, sunrise is at 5:41 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:11 pm AEDT.
Sunshine
The month with the most sunshine is December, with an average of 10h of sunshine.UV index
The months with the highest UV index are January and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Mount Wilson in December?
What is the least humid month in Mount Wilson?
What is the average humidity in December in Mount Wilson?
How much does it rain in Mount Wilson in December?
When it does not snow in Mount Wilson?
When are the longest days in Mount Wilson?
What is the average length of the day in December in Mount Wilson?
When is the sunrise / sunset in December in Mount Wilson?
What month has the most sunshine in Mount Wilson?
How long on average sun shines in December in Mount Wilson?
When is the highest UV index in Mount Wilson?
How high is the UV index in December in Mount Wilson?
Average temperature in December
Mount Wilson, Australia
- Average high temperature in December: 25.3°C
The warmest month (with the highest average high temperature) is January (27.5°C).
The month with the lowest average high temperature is July (11.7°C).
- Average low temperature in December: 12.7°C
The month with the highest average low temperature is January (14.6°C).
The coldest month (with the lowest average low temperature) is July (2.5°C).
Average pressure in December
Mount Wilson, Australia
- Average pressure in December: 1013.1mbar
The month with the highest atmospheric pressure is June (1021.7mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in December
Mount Wilson, Australia
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is August (10.4km/h).
The calmest month (with the lowest average wind speed) is April (7.4km/h).
Average humidity in December
Mount Wilson, Australia
- Average humidity in December: 68%
The month with the highest relative humidity is June (85%).
The month with the lowest relative humidity is December (68%).
Average rainfall in December
Mount Wilson, Australia
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is February (91mm).
The driest month (with the least rainfall) is May (20mm).
Average rainfall days in December
Mount Wilson, Australia
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is May (8.5 days).
Average snowfall in December
Mount Wilson, Australia
- Average snowfall in December: 0mm
The month with the highest snowfall is August (19mm).
The months with the least snowfall are January, February, March, April, May, November and December (0mm).
Average snowfall days in December
Mount Wilson, Australia
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (1.2 days).
The months with the least snowfall days are January, February, March, April, November and December (0 days).
Average daylight in December /
Average sunshine in December
Mount Wilson, Australia
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 10h and 0min
The month with the most sunshine is December (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 5h and 30min).
Average sunshine days in December
Mount Wilson, Australia
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is March (11 days).
Average UV index in December
Mount Wilson, Australia
- Average UV index in December: 6
The months with the highest UV index are January and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in December
Mount Wilson, Australia
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in December
Mount Wilson, Australia
- Average visibility in December: 8km
The months with the highest visibility are January, February, August, September, October, November and December (8km).
The months with the lowest visibility are March, April, May, June and July (7km).
