December weather forecast
Mount Robson, Canada

December

Weather in December

December, the first month of the winter in Mount Robson, is still a freezing cold month, with an average temperature varying between -15.5°C (4.1°F) and -8.2°C (17.2°F).

Temperature

Mount Robson experiences its lowest average temperatures in December, reaching a peak of -8.2°C (17.2°F) and a minimum of -15.5°C (4.1°F).

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 92%.

Rainfall

December is the month with the least rainfall. Rain falls for 10.2 days and accumulates 27mm (1.06") of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Mount Robson, in December, during 19.6 snowfall days, 223mm (8.78") of snow is typically accumulated. In Mount Robson, during the entire year, snow falls for 135.5 days and aggregates up to 1709mm (67.28") of snow.

Daylight

December has the shortest days of the year in Mount Robson, with an average of 7h and 36min of daylight.
On the first day of the month, sunrise is at 7:48 am and sunset at 3:43 pm. On the last day of December, sunrise is at 8:10 am and sunset at 3:49 pm PST.

Sunshine

The average sunshine in December is 4.4h.

UV index

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What time of the year is the coldest?
December stands out as Mount Robson's coldest month, with temperatures ranging between an average high of -8.2°C (17.2°F) and a low of -15.5°C (4.1°F).
How cold is December?
Mount Robson in December has an average high-temperature of -8.2°C (17.2°F) and an average low-temperature of -15.5°C (4.1°F).
What are the most humid months?
The months with the highest humidity are January, February and December, with an average relative humidity of 92%.
What is the average humidity in December?
In December, the average relative humidity is 92%.
What is the driest month?
The month with the least rainfall is December, when the rain falls for 10.2 days and typically collects 27mm (1.06") of precipitation.
How many days does it rain in December in Mount Robson?
In Mount Robson, in December, during 10.2 rainfall days, 27mm (1.06") of precipitation is typically accumulated.
How much does it snow in December?
In December, it is snowing for 19.6 days. Throughout December, 223mm (8.78") of snow is accumulated.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 7h and 36min of daylight.
What is the average length of the day in December?
The average day length in December is 7h and 39min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 7:48 am and sunset at 3:43 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 3:49 pm PST.
How long on average sun shines in December?
The average sunshine duration in December is 4.4h.
What is the UV index reading in December?
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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 - Mount Robson, Canada
Average temperature in December
Mount Robson, Canada
  • Average high temperature in December: -8.2°C

The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is December (-8.2°C).

  • Average low temperature in December: -15.5°C

The month with the highest average low temperature is July (6.1°C).
The coldest month (with the lowest average low temperature) is February (-16.6°C).

Average pressure in December - Mount Robson, Canada
Average pressure in December
Mount Robson, Canada
  • Average pressure in December: 1019.2mbar

The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is June (1012.2mbar).

Average wind speed in December - Mount Robson, Canada
Average wind speed in December
Mount Robson, Canada
  • Average wind speed in December: 9.7km/h

The windiest month (with the highest average wind speed) is November (10.4km/h).
The calmest month (with the lowest average wind speed) is May (7.6km/h).

Average humidity in December - Mount Robson, Canada
Average humidity in December
Mount Robson, Canada
  • Average humidity in December: 92%

The months with the highest relative humidity are January, February and December (92%).
The month with the lowest relative humidity is August (64%).

Average rainfall in December - Mount Robson, Canada
Average rainfall in December
Mount Robson, Canada
  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is June (83mm).
The driest month (with the least rainfall) is December (27mm).

Average rainfall days in December - Mount Robson, Canada
Average rainfall days in December
Mount Robson, Canada
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is June (21.4 days).
The month with the least rainy days is February (9.3 days).

Average snowfall in December - Mount Robson, Canada
Average snowfall in December
Mount Robson, Canada
  • Average snowfall in December: 223mm

The month with the highest snowfall is March (274mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in December - Mount Robson, Canada
Average snowfall days in December
Mount Robson, Canada
  • Average snowfall days in December: 19.6 days

The month with the highest number of snowfall days is March (22.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December / Average sunshine in December - Mount Robson, Canada
Average daylight in December /
Average sunshine in December
Mount Robson, Canada
  • Average daylight in December: 7h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December - Mount Robson, Canada
Average sunshine days in December
Mount Robson, Canada
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is September (12 days).
The month with the least sunshine days is April (4.4 days).

Average UV index in December - Mount Robson, Canada
Average UV index in December
Mount Robson, Canada
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, March and November (UV index 1).

Average cloud cover in December - Mount Robson, Canada
Average cloud cover in December
Mount Robson, Canada
  • Average cloud cover in December: 52

The months with the most cloud cover are January and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December - Mount Robson, Canada
Average visibility in December
Mount Robson, Canada
  • Average visibility in December: 7km

The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January, February and March (6km).

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