December weather forecastPrince Rupert, Canada
December
Weather in December
The first month of the winter, December, is also an icy month in Prince Rupert, Canada, with an average temperature fluctuating between 3.6°C (38.5°F) and 1.3°C (34.3°F).Temperature
With average high temperatures of 3.6°C (38.5°F) and lows of 1.3°C (34.3°F), December is the coldest month.Humidity
In Prince Rupert, the average relative humidity in December is 79%.Rainfall
In Prince Rupert, during December, the rain falls for 18.4 days and regularly aggregates up to 142mm (5.59") of precipitation. Throughout the year, there are 218.8 rainfall days, and 1574mm (61.97") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Prince Rupert, Canada, in December, during 4 snowfall days, 75mm (2.95") of snow is typically accumulated. Throughout the year, there are 22.4 snowfall days, and 442mm (17.4") of snow is accumulated.Sea temperature
January through April and December, with an average sea temperature of 7°C (44.6°F), are months with the coldest seawater in Prince Rupert.Note: Taking a dip in 7°C (44.6°F) can be perilous. Submersion in temperatures under 10°C (50°F) triggers severe cold shock accompanied by hyperventilation.
Daylight
December has the shortest days of the year in Prince Rupert, with an average of 7h and 24min of daylight.On the first day of December, sunrise is at 8:39 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 9:01 am and sunset at 4:27 pm PST.
Sunshine
The average sunshine in December in Prince Rupert, Canada, is 3.5h.UV index
The months with the lowest UV index in Prince Rupert, Canada, are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Prince Rupert, Canada
- Average high temperature in December: 3.6°C
The warmest month (with the highest average high temperature) is August (15.3°C).
The month with the lowest average high temperature is December (3.6°C).
- Average low temperature in December: 1.3°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in December
Prince Rupert, Canada
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in December
Prince Rupert, Canada
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is January (17.5km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity in December
Prince Rupert, Canada
- Average humidity in December: 79%
The month with the highest relative humidity is August (86%).
The months with the lowest relative humidity are February and March (78%).
Average rainfall in December
Prince Rupert, Canada
- Average rainfall in December: 142mm
The wettest month (with the highest rainfall) is November (190mm).
The driest month (with the least rainfall) is May (67mm).
Average rainfall days in December
Prince Rupert, Canada
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is November (20.9 days).
The month with the least rainy days is February (13.8 days).
Average snowfall in December
Prince Rupert, Canada
- Average snowfall in December: 75mm
The month with the highest snowfall is January (112mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Prince Rupert, Canada
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is March (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in December
Prince Rupert, Canada
- Average sea temperature in December: 7°C
The best months for swimming (with the highest average sea temperature) are July and August (13°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April and December (7°C).
Average daylight in December /
Average sunshine in December
Prince Rupert, Canada
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is July (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Prince Rupert, Canada
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is May (12.2 days).
The month with the least sunshine days is November (7.4 days).
Average UV index in December
Prince Rupert, Canada
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Prince Rupert, Canada
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is September (Cloud cover 51).
Average visibility in December
Prince Rupert, Canada
- Average visibility in December: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).
