December weather forecast
Terrebonne, Canada

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Terrebonne, Canada, with an average temperature fluctuating between -8.1°C (17.4°F) and -2.6°C (27.3°F).

Temperature

Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a wintry 4.5°C (40.1°F) to a freezing cold -2.6°C (27.3°F). An average low-temperature of -8.1°C (17.4°F) is noted in Terrebonne during the month of December.

Humidity

In December, the average relative humidity in Terrebonne is 86%.

Rainfall

In Terrebonne, during December, the rain falls for 7.3 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Terrebonne, there are 146.7 rainfall days, and 781mm (30.75") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Terrebonne. In Terrebonne, in December, during 12.6 snowfall days, 185mm (7.28") of snow is typically accumulated. Throughout the year, in Terrebonne, there are 66.3 snowfall days, and 974mm (38.35") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of December in Terrebonne, sunrise is at 7:15 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:20 pm EST.

Sunshine

The average sunshine in December in Terrebonne, Canada, is 3.7h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Terrebonne. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

How cold is December in Terrebonne?
The average high-temperature and low-temperature during December are -2.6°C (27.3°F) and -8.1°C (17.4°F) respectively.
What is the average humidity in December in Terrebonne?
The average relative humidity in December in Terrebonne, Canada, is 86%.
How much does it rain in Terrebonne in December?
In Terrebonne, Canada, in December, during 7.3 rainfall days, 66mm (2.6") of precipitation is typically accumulated.
How many days does it snow in December in Terrebonne?
In Terrebonne, during December, snow falls for 12.6 days and regularly aggregates up to 185mm (7.28") of snow.
What is the month with the shortest days in Terrebonne?
December has the shortest days of the year in Terrebonne, Canada, with an average of 8h and 48min of daylight.
What is the average length of the day in December in Terrebonne?
In December, the average day length in Terrebonne, Canada, is 8h and 45min.
When is the sunrise / sunset in December in Terrebonne?
On the first day of December in Terrebonne, Canada, sunrise is at 7:15 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:20 pm EST.
How many hours of sunshine does Terrebonne have in December?
In December, the average sunshine duration is 3.7h.
When is the lowest UV index in Terrebonne?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the UV index reading in December in Terrebonne?
The average daily maximum UV index in December in Terrebonne is 1. A UV Index estimate of 2, and below, represents a low health threat 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 - Terrebonne, Canada
Average temperature in December
Terrebonne, Canada
  • Average high temperature in December: -2.6°C

The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.3°C).

  • Average low temperature in December: -8.1°C

The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (-13.7°C).

Average pressure in December - Terrebonne, Canada
Average pressure in December
Terrebonne, Canada
  • Average pressure in December: 1017.2mbar

The month with the highest atmospheric pressure is November (1017.7mbar).
The month with the lowest atmospheric pressure is June (1012.4mbar).

Average wind speed in December - Terrebonne, Canada
Average wind speed in December
Terrebonne, Canada
  • Average wind speed in December: 12.1km/h

The windiest month (with the highest average wind speed) is April (14km/h).
The calmest months (with the lowest average wind speed) are July, August and September (10.7km/h).

Average humidity in December - Terrebonne, Canada
Average humidity in December
Terrebonne, Canada
  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (74%).

Average rainfall in December - Terrebonne, Canada
Average rainfall in December
Terrebonne, Canada
  • Average rainfall in December: 66mm

The wettest month (with the highest rainfall) is April (78mm).
The driest month (with the least rainfall) is September (51mm).

Average rainfall days in December - Terrebonne, Canada
Average rainfall days in December
Terrebonne, Canada
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in December - Terrebonne, Canada
Average snowfall in December
Terrebonne, Canada
  • Average snowfall in December: 185mm

The month with the highest snowfall is January (253mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Terrebonne, Canada
Average snowfall days in December
Terrebonne, Canada
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Terrebonne, Canada
Average daylight in December /
Average sunshine in December
Terrebonne, Canada
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in December - Terrebonne, Canada
Average sunshine days in December
Terrebonne, Canada
  • Average sunshine days in December: 14.3 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in December - Terrebonne, Canada
Average UV index in December
Terrebonne, Canada
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December - Terrebonne, Canada
Average cloud cover in December
Terrebonne, Canada
  • Average cloud cover in December: 61

The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December - Terrebonne, Canada
Average visibility in December
Terrebonne, Canada
  • Average visibility in December: 8km

The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and February (7km).

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