Churchill
Canada
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Churchill, Canada

The first month of the winter, December, is also an arctic cold month in Churchill, Canada, with average temperature ranging between max -17.8°C (-0°F) and min -25.9°C (-14.6°F).

Temperature

In December, the average high-temperature significantly decreases, from a freezing cold -9°C (15.8°F) in November, to a polar cold -17.8°C (-0°F). In December, in Churchill, the average low-temperature is -25.9°C (-14.6°F).

Rainfall

December is the last month it rains. During 0.2 rainfall days, in December, Churchill aggregates 0.1mm (0") of precipitation. In Churchill, during the entire year, the rain falls for 68.8 days and collects up to 276mm (10.9") of precipitation.

Snowfall

Months with snowfall in Churchill are January through June, September through December. In December, in Churchill, it is snowing for 12.3 days. Throughout December, 229mm (9") of snow is accumulated. In Churchill, during the entire year, snow falls for 92 days, and aggregates up to 2012mm (79.2") of snow.

Sea temperature

January through April and December, with an average sea temperature of -2°C (28.4°F), are months with the coldest seawater in Churchill.
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

December has the shortest days of the year, with an average of 6.4h of daylight.

Sunshine

December has the least sunshine of the year in Churchill, with an average of 1.7h of sunshine.

UV index

January, November and December, with an average maximum UV index of 0, are months with the lowest UV index in Churchill. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 0 translate into the following recommendations:
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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Churchill?

In Churchill, in December, the average high-temperature is -17.8°C (-0°F), and the average low-temperature is -25.9°C (-14.6°F).

What is the last month it rains in Churchill?

December is the last month it rains. During 0.2 rainfall days, in December, Churchill aggregates 0.1mm (0") of precipitation.

How many days does it snow in December in Churchill?

In December, in Churchill, it is snowing for 12.3 days. Throughout December, 229mm (9") of snow is accumulated.

What are the months with the coldest sea water in Churchill?

Through, April and December, with an average sea temperature of -2°C (28.4°F).

How cold is the water in December in Churchill?

In Churchill, the average seawater temperature in December is -2°C (28.4°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Churchill?

With an average of 6.4h of daylight, December has the shortest days of the year.

How many hours of daylight does Churchill have in December?

In Churchill, Canada, the average length of the day in December is 6.4h.

What is the month with the least sunshine in Churchill?

The month with the least sunshine in Churchill, Canada, is December, with an average of 1.7h of sunshine.

How long on average sun shines in December in Churchill?

The average sunshine in December is 1.7h.

What is the month with the lowest UV index in Churchill?

Months with the lowest UV index in Churchill are January, November and December, with an average maximum UV index of 0.

What is the UV index intensity in December in Churchill?

In December, the average daily maximum UV index in Churchill, Canada, is 0. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Churchill, Canada
  • Average high temperature in December: -17.8°C

The warmest month (with the highest average high temperature) is July (18°C).
The month with the lowest average high temperature is January (-21.9°C).

  • Average low temperature in December: -25.9°C

The month with the highest average low temperature is August (7.7°C).
The coldest month (with the lowest average low temperature) is January (-30.1°C).

Average rainfall in December - Churchill, Canada
  • Average rainfall in December: 0.1mm

The wettest month (with the highest rainfall) is August (69.3mm).
Driest months (with the lowest rainfall) are January and February (0mm).

Average rainfall days in December - Churchill, Canada
  • Average rainfall days in December: 0.2 days

The month with the highest number of rainy days is August (14.9 days).
Months with the lowest number of rainy days are January and February (0.1 days).

Average snowfall in December - Churchill, Canada
  • Average snowfall in December: 229mm

The month with the highest snowfall is November (392mm).
Months with the lowest snowfall are July and August (0mm).

Average snowfall days in December - Churchill, Canada
  • Average snowfall days in December: 12.3 days

The month with the highest number of snowfall days is November (15.6 days).
The month with the lowest number of snowfall days is July (0 days).

Average sea temperature in December - Churchill, Canada
  • Average sea temperature in December: -2°C

The best month for swimming (with the highest average sea temperature) is August (8°C).
Coldest months (with the lowest average sea temperature) are January, February, March, April and December (-2°C).

Average daylight in December / Average sunshine in December - Churchill, Canada
  • Average daylight in December: 6.4h

The month with the longest days is June (Average daylight: 18.3h).
The month with shortest days is December (Average daylight: 6.4h).

  • Average sunshine in December: 1.7h

The month with most sunshine is July (Average sunshine: 9.1h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in December - Churchill, Canada
  • Average UV index in December: 0

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, November and December (UV index 0).