December weather forecast and climate
Banff, Canada

December, the first month of the winter, in Banff, is still a freezing cold month, with average temperature varying between -15.4°C (4.3°F) and -8.1°C (17.4°F).

Temperature

December is the coldest month, with an average high-temperature of -8.1°C (17.4°F) and an average low-temperature of -15.4°C (4.3°F).

Humidity

In December, the average relative humidity is 90%.

Rainfall

In Banff, during December, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation. In Banff, during the entire year, the rain falls for 166.4 days and collects up to 589mm (23.19") of precipitation.

Snowfall

January through June, September through December are months with snowfall in Banff, Canada. In December, in Banff, it is snowing for 19 days. Throughout December, 177mm (6.97") of snow is accumulated. Throughout the year, there are 133.1 snowfall days, and 1671mm (65.79") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h of daylight.

Sunshine

Months with the least sunshine are January and December, with an average of 4.8h of sunshine.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Banff?

The coldest month in Banff, Canada, is December, with an average high-temperature of -8.1°C (17.4°F) and an average low-temperature of -15.4°C (4.3°F).

What is the temperature in December in Banff?

In December, in Banff, the average high-temperature is -8.1°C (17.4°F), and the average low-temperature is -15.4°C (4.3°F).

What is the average humidity in December in Banff?

In Banff, the average relative humidity in December is 90%.

How many days does it rain in December in Banff?

In Banff, during December, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation.

How much does it snow in Banff in December?

In Banff, during December, snow falls for 19 days and regularly aggregates up to 177mm (6.97") of snow.

What is the month with the shortest days in Banff?

With an average of 8h of daylight, December has the shortest days of the year in Banff.

What is the average length of the day in December in Banff?

In December, the average length of the day in Banff is 8h.

What is the month with the least sunshine in Banff?

January and December, with an average of 4.8h of sunshine, are months with the least sunshine in Banff, Canada.

How many hours of sunshine does Banff have in December?

In December, the average sunshine is 4.8h.

How high is the UV index in December in Banff?

In Banff, Canada, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Banff, Canada
  • Average high temperature in December: -8.1°C

The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is December (-8.1°C).

  • Average low temperature in December: -15.4°C

The month with the highest average low temperature is July (6°C).
The coldest month (with the lowest average low temperature) is February (-15.9°C).

Average pressure in December - Banff, Canada
  • Average pressure in December: 1019.8mbar

The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is June (1011.7mbar).

Average wind speed in December - Banff, Canada
  • Average wind speed in December: 10.7km/h

The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest month (with the lowest average wind speed) is August (7.2km/h).

Average humidity in December - Banff, Canada
  • Average humidity in December: 90%

Months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (62%).

Average rainfall in December - Banff, Canada
  • Average rainfall in December: 22mm

The wettest month (with the highest rainfall) is June (116mm).
The driest month (with the least rainfall) is January (18mm).

Average rainfall days in December - Banff, Canada
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is June (22.5 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in December - Banff, Canada
  • Average snowfall in December: 177mm

The month with the highest snowfall is April (324mm).
Months with the least snowfall are July and August (0mm).

Average snowfall days in December - Banff, Canada
  • Average snowfall days in December: 19 days

The month with the highest number of snowfall days is March (21.2 days).
The month with the least snowfall days is July (0 days).

Average daylight in December / Average sunshine in December - Banff, Canada
  • Average daylight in December: 8h

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in December: 4.8h

The month with the most sunshine is August (Average sunshine: 11h).
Months with the least sunshine are January and December (Average sunshine: 4.8).

Average sunshine days in December - Banff, Canada
  • Average sunshine days in December: 12.1 days

The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is June (4.3 days).

Average UV index in December - Banff, Canada
  • Average UV index in December: 2

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

Average cloud cover in December - Banff, Canada
  • Average cloud cover in December: 57

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December - Banff, Canada
  • Average visibility in December: 7km

Months with the highest visibility are June, July, August, September and October (9km).
Months with the lowest visibility are January, February, March, April and December (7km).