Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December begins, there is a minor decrease in the average high-temperature, softly falling from a wintry 1.5°C (34.7°F) in November to a subzero cold -3.2°C (26.2°F). During the month of December, Mary's Harbour identifies an average nighttime low-temperature of -8.1°C (17.4°F), slightly lower than its daytime counterpart.Humidity
The average relative humidity in December is 85%.Rainfall
In Mary's Harbour, during December, the rain falls for 8.5 days and regularly aggregates up to 63mm (2.48") of precipitation. In Mary's Harbour, during the entire year, the rain falls for 108.4 days and collects up to 600mm (23.62") of precipitation.Snowfall
Months with snowfall in Mary's Harbour are January through May, October through December. In Mary's Harbour, in December, snow falls for 12.9 days, with typically accumulated 96mm (3.78") of snow. In Mary's Harbour, during the entire year, snow falls for 91.2 days and aggregates up to 850mm (33.46") of snow.Daylight
With an average of 7h and 48min of daylight, December has the shortest days of the year.On the first day of December in Mary's Harbour, sunrise is at 8:01 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 8:22 am and sunset at 4:10 pm NST.
Sunshine
The average sunshine in December in Mary's Harbour is 3.5h.UV index
The months with the lowest UV index in Mary's Harbour are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is it in Mary's Harbour in December?
What is the average humidity in December in Mary's Harbour?
How much does it rain in Mary's Harbour in December?
How many days does it snow in December in Mary's Harbour?
What is the month with the shortest days in Mary's Harbour?
What is the average length of the day in December in Mary's Harbour?
When are sunrise and sunset in December in Mary's Harbour?
How many hours of sunshine does Mary's Harbour have in December?
What are the months with the lowest UV index in Mary's Harbour?
How high is the UV index in December in Mary's Harbour?
Average temperature in December
Mary's Harbour, Canada
- Average high temperature in December: -3.2°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (-7.1°C).
- Average low temperature in December: -8.1°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (-14.3°C).
Average pressure in December
Mary's Harbour, Canada
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is January (1005.6mbar).
Average wind speed in December
Mary's Harbour, Canada
- Average wind speed in December: 25.5km/h
The windiest month (with the highest average wind speed) is December (25.5km/h).
The calmest month (with the lowest average wind speed) is August (17.2km/h).
Average humidity in December
Mary's Harbour, Canada
- Average humidity in December: 85%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is September (78%).
Average rainfall in December
Mary's Harbour, Canada
- Average rainfall in December: 63mm
The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in December
Mary's Harbour, Canada
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Mary's Harbour, Canada
- Average snowfall in December: 96mm
The month with the highest snowfall is March (160mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mary's Harbour, Canada
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is March (16.9 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mary's Harbour, Canada
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Mary's Harbour, Canada
- Average sunshine days in December: 10.8 days
The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in December
Mary's Harbour, Canada
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Mary's Harbour, Canada
- Average cloud cover in December: 61
The month with the most cloud cover is March (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 49).
Average visibility in December
Mary's Harbour, Canada
- Average visibility in December: 8km
The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April and December (8km).
Mary's Harbour, Canada
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