December weather forecastBonarlaw, Canada

December

Weather in December

The first month of the winter, December, is also a wintry month in Bonarlaw, Canada, with an average temperature varying between -4.4°C (24.1°F) and 0.5°C (32.9°F).

Temperature

The average high-temperature decreases in December, shifting from a chilly 6.4°C (43.5°F) in November to a wintry 0.5°C (32.9°F). Night temperatures during December stabilize at an average of -4.4°C (24.1°F), closely mirroring the daytime temperatures.

Humidity

The average relative humidity in December is 82%.

Rainfall

In Bonarlaw, in December, during 9.8 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Bonarlaw, during the entire year, the rain falls for 145 days and collects up to 595mm (23.43") of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 9.5 days and typically aggregates up to 105mm (4.13") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:41 pm EST.

Sunshine

In Bonarlaw, the average sunshine in December is 3.6h.

UV index

The months with the lowest UV index 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 unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

In December, the average high-temperature and low-temperature are 0.5°C (32.9°F) and -4.4°C (24.1°F) respectively.

The average relative humidity in December is 82%.

In Bonarlaw, in December, during 9.8 rainfall days, 52mm (2.05") of precipitation is typically accumulated.

December is the month with the most snowfall. Snow falls for 9.5 days and accumulates 105mm (4.13") of snow.

In December, it is snowing for 9.5 days. Throughout December, 105mm (4.13") of snow is accumulated.

With an average of 8h and 54min of daylight, December has the shortest days of the year.

In Bonarlaw, the average day length in December is 8h and 55min.

On the first day of December, sunrise is at 7:27 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:41 pm EST.

The average sunshine duration in December is 3.6h.

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
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
Bonarlaw, Canada

  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is July (25.5°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in December: -4.4°C

The month with the highest average low temperature is July (16.8°C).
The coldest month (with the lowest average low temperature) is January (-9°C).

Average pressure in December
Bonarlaw, Canada

  • Average pressure in December: 1017.4mbar

The months with the highest atmospheric pressure are March and November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

Average wind speed in December
Bonarlaw, Canada

  • Average wind speed in December: 15.8km/h

The windiest month (with the highest average wind speed) is January (16.4km/h).
The calmest month (with the lowest average wind speed) is July (11.1km/h).

Average humidity in December
Bonarlaw, Canada

  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May, July, August and September (75%).

Average rainfall in December
Bonarlaw, Canada

  • Average rainfall in December: 52mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the least rainfall) is February (36mm).

Average rainfall days in December
Bonarlaw, Canada

  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in December
Bonarlaw, Canada

  • Average snowfall in December: 105mm

The month with the highest snowfall is December (105mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Bonarlaw, Canada

  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bonarlaw, Canada

  • Average daylight in December: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 3h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Bonarlaw, Canada

  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is March (15.9 days).
The month with the least sunshine days is August (12.9 days).

Average UV index in December
Bonarlaw, 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
Bonarlaw, Canada

  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Bonarlaw, Canada

  • Average visibility in December: 9km

The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (9km).