December weather forecast
Stony Mountain, Canada

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Weather in December

December, the first month of the winter in Stony Mountain, is still a freezing cold month, with an average temperature fluctuating between -9.5°C (14.9°F) and -14.9°C (5.2°F).

Temperature

A noticeable downshift in temperatures is seen as November gives way to December, with average highs moving from a cold 0°C (32°F) to a freezing cold -9.5°C (14.9°F). Stony Mountain's nights in December experience an average temperature drop to an extreme cold -14.9°C (5.2°F).

Humidity

In Stony Mountain, the average relative humidity in December is 91%.

Rainfall

In Stony Mountain, in December, during 1.7 rainfall days, 12mm (0.47") of precipitation is typically accumulated. Throughout the year, there are 101.8 rainfall days, and 395mm (15.55") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Stony Mountain. In Stony Mountain, in December, during 12.1 snowfall days, 61mm (2.4") of snow is typically accumulated. Throughout the year, there are 73.2 snowfall days, and 479mm (18.86") of snow is accumulated.

Daylight

The month with the shortest days in Stony Mountain is December, with an average of 8h and 12min of daylight.
On the first day of the month, sunrise is at 8:06 am and sunset at 4:29 pm. On the last day of December, in Stony Mountain, sunrise is at 8:27 am and sunset at 4:36 pm CST.

Sunshine

The average sunshine in December in Stony Mountain is 3h.

UV index

January, February, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Stony Mountain?

In December, the average high-temperature and low-temperature are -9.5°C (14.9°F) and -14.9°C (5.2°F) respectively.

What is the average humidity in December in Stony Mountain?

The average relative humidity in December in Stony Mountain is 91%.

How many days does it rain in December in Stony Mountain?

In December, in Stony Mountain, Canada, the rain falls for 1.7 days. Throughout December, 12mm (0.47") of precipitation is accumulated.

How much does it snow in Stony Mountain in December?

In Stony Mountain, Canada, in December, during 12.1 snowfall days, 61mm (2.4") of snow is typically accumulated.

What is the month with the shortest days in Stony Mountain?

December has the shortest days of the year, with an average of 8h and 12min of daylight.

How many hours of daylight does Stony Mountain have in December?

The average day length in December is 8h and 9min.

What time are sunrise and sunset in December in Stony Mountain?

In December, on the first day of the month, sunrise is at 8:06 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:36 pm CST.

How long on average sun shines in December in Stony Mountain?

The average sunshine duration in December in Stony Mountain is 3h.

When is the lowest UV index in Stony Mountain?

The months with the lowest UV index in Stony Mountain, Canada, are January, February, October through December, with an average maximum UV index of 1.

How high is the UV index in December in Stony Mountain?

In Stony Mountain, Canada, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Stony Mountain, Canada

Average temperature in December - Stony Mountain, Canada
  • Average high temperature in December: -9.5°C

The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (-11.3°C).

  • Average low temperature in December: -14.9°C

The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-18.5°C).

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Average pressure in December
Stony Mountain, Canada

Average pressure in December - Stony Mountain, Canada
  • Average pressure in December: 1019.4mbar

The month with the highest atmospheric pressure is February (1020.9mbar).
The month with the lowest atmospheric pressure is June (1010.5mbar).

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Average wind speed in December
Stony Mountain, Canada

Average wind speed in December - Stony Mountain, Canada
  • Average wind speed in December: 14.7km/h

The windiest month (with the highest average wind speed) is October (16km/h).
The calmest month (with the lowest average wind speed) is August (12.8km/h).

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Average humidity in December
Stony Mountain, Canada

Average humidity in December - Stony Mountain, Canada
  • Average humidity in December: 91%

The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are May and August (63%).

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Average rainfall in December
Stony Mountain, Canada

Average rainfall in December - Stony Mountain, Canada
  • Average rainfall in December: 12mm

The wettest month (with the highest rainfall) is June (70mm).
The driest month (with the least rainfall) is February (10mm).

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Average rainfall days in December
Stony Mountain, Canada

Average rainfall days in December - Stony Mountain, Canada
  • Average rainfall days in December: 1.7 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (1.2 days).

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Average snowfall in December
Stony Mountain, Canada

Average snowfall in December - Stony Mountain, Canada
  • Average snowfall in December: 61mm

The month with the highest snowfall is November (91mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Stony Mountain, Canada

Average snowfall days in December - Stony Mountain, Canada
  • Average snowfall days in December: 12.1 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Stony Mountain, Canada

Average daylight in December / Average sunshine in December - Stony Mountain, Canada
  • Average daylight in December: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 3h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in December
Stony Mountain, Canada

Average sunshine days in December - Stony Mountain, Canada
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in December
Stony Mountain, Canada

Average UV index in December - Stony Mountain, Canada
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 1).

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Average cloud cover in December
Stony Mountain, Canada

Average cloud cover in December - Stony Mountain, Canada
  • Average cloud cover in December: 70

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Stony Mountain, Canada

Average visibility in December - Stony Mountain, Canada
  • Average visibility in December: 8km

The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (7km).

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Stony Mountain, Canada

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