December weather forecast
Whistler, Canada

December

Weather in December

December, the first month of the winter in Whistler, is also a subzero cold month, with an average temperature ranging between max -2.5°C (27.5°F) and min -9.8°C (14.4°F).

Temperature

December, with an average high of -2.5°C (27.5°F) and a low of -9.8°C (14.4°F), signifies the coldest month of the year.

Humidity

In Whistler, the average relative humidity in December is 93%.

Rainfall

In December, in Whistler, Canada, the rain falls for 9.5 days. Throughout December, 198mm (7.8") of precipitation is accumulated. Throughout the year, there are 191.9 rainfall days, and 1579mm (62.17") of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. December is the month with the most snowfall in Whistler. Snow falls for 18.7 days and accumulates 848mm (33.39") of snow.

Daylight

With an average of 8h and 6min of daylight, December has the shortest days of the year in Whistler.
On the first day of the month, sunrise is at 7:50 am and sunset at 4:12 pm. On the last day of December, in Whistler, sunrise is at 8:10 am and sunset at 4:19 pm PST.

Sunshine

The average sunshine in December is 3.9h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Frequently asked questions

What is the coldest time of year in Whistler?
During the coldest month in Whistler, December, temperatures average a high of -2.5°C (27.5°F) and a low of -9.8°C (14.4°F).
How cold is it in Whistler in December?
December temperatures vary between a high-temperature of -2.5°C (27.5°F) and a low-temperature of -9.8°C (14.4°F).
What is the average humidity in December in Whistler?
The average relative humidity in December is 93%.
How much does it rain in Whistler in December?
In Whistler, in December, during 9.5 rainfall days, 198mm (7.8") of precipitation is typically accumulated.
What is the snowiest month in Whistler?
The month with the most snowfall in Whistler, Canada, is December, when snow falls for 18.7 days and typically aggregates up to 848mm (33.39") of snow.
How many days does it snow in December in Whistler?
In Whistler, Canada, in December, snow falls for 18.7 days, with typically accumulated 848mm (33.39") of snow.
What is the month with the shortest days in Whistler?
With an average of 8h and 6min of daylight, December has the shortest days of the year.
What is the average length of the day in December in Whistler?
In Whistler, Canada, the average day length in December is 8h and 9min.
When are sunrise and sunset in December in Whistler?
On the first day of December, sunrise is at 7:50 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 4:19 pm PST.
How long on average sun shines in December in Whistler?
In Whistler, the average sunshine duration in December is 3.9h.
When is the lowest UV index in Whistler?
The months with the lowest UV index in Whistler are January through March, October through December, with an average maximum UV index of 1.
What is the UV index reading in December in Whistler?
In Whistler, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Whistler, Canada
Average temperature in December
Whistler, Canada
  • Average high temperature in December: -2.5°C

The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is December (-2.5°C).

  • Average low temperature in December: -9.8°C

The month with the highest average low temperature is August (5.9°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).

Average pressure in December - Whistler, Canada
Average pressure in December
Whistler, Canada
  • Average pressure in December: 1018.4mbar

The months with the highest atmospheric pressure are January and December (1018.4mbar).
The month with the lowest atmospheric pressure is June (1015.3mbar).

Average wind speed in December - Whistler, Canada
Average wind speed in December
Whistler, Canada
  • Average wind speed in December: 6.9km/h

The windiest months (with the highest average wind speed) are March and November (7.5km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).

Average humidity in December - Whistler, Canada
Average humidity in December
Whistler, Canada
  • Average humidity in December: 93%

The month with the highest relative humidity is March (95%).
The month with the lowest relative humidity is July (72%).

Average rainfall in December - Whistler, Canada
Average rainfall in December
Whistler, Canada
  • Average rainfall in December: 198mm

The wettest month (with the highest rainfall) is January (226mm).
The driest month (with the least rainfall) is July (60mm).

Average rainfall days in December - Whistler, Canada
Average rainfall days in December
Whistler, Canada
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is June (23.4 days).
The month with the least rainy days is December (9.5 days).

Average snowfall in December - Whistler, Canada
Average snowfall in December
Whistler, Canada
  • Average snowfall in December: 848mm

The month with the highest snowfall is December (848mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in December - Whistler, Canada
Average snowfall days in December
Whistler, Canada
  • Average snowfall days in December: 18.7 days

The month with the highest number of snowfall days is March (19.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December / Average sunshine in December - Whistler, Canada
Average daylight in December /
Average sunshine in December
Whistler, Canada
  • Average daylight in December: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December - Whistler, Canada
Average sunshine days in December
Whistler, Canada
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (13.8 days).
The month with the least sunshine days is June (4.5 days).

Average UV index in December - Whistler, Canada
Average UV index in December
Whistler, Canada
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average cloud cover in December - Whistler, Canada
Average cloud cover in December
Whistler, Canada
  • Average cloud cover in December: 60

The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December - Whistler, Canada
Average visibility in December
Whistler, Canada
  • Average visibility in December: 5km

The months with the highest visibility are July, August and September (8km).
The months with the lowest visibility are January, February, March and December (5km).

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