December weather forecast
Grancy, Switzerland

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Weather in December

The first month of the winter, December, is also an icy month in Grancy, Switzerland, with temperature in the range of an average low of -0.4°C (31.3°F) and an average high of 4.9°C (40.8°F).

Temperature

December implies a soft temperature shift, with average high-temperatures reducing from November's chilly 8.7°C (47.7°F) to a cold 4.9°C (40.8°F). Throughout December, Grancy experiences a low-temperature average of -0.4°C (31.3°F).

Humidity

In Grancy, the average relative humidity in December is 80%.

Rainfall

The month with the most rainfall in Grancy, Switzerland, is December, when the rain falls for 13.8 days and typically aggregates up to 103mm (4.06") of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Grancy is December, when snow falls for 8 days and typically aggregates up to 184mm (7.24") of snow.

Daylight

December has the shortest days of the year in Grancy, Switzerland, with an average of 8h and 36min of daylight.
On the first day of December in Grancy, sunrise is at 07:58 and sunset at 16:48. On the last day of the month, sunrise is at 08:18 and sunset at 16:56 CET.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Grancy are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. When the Sun is at its strongest around midday, find shade and limit 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. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

Is it cold in Grancy during December?

In December, the average high-temperature and low-temperature are 4.9°C (40.8°F) and -0.4°C (31.3°F) respectively.

What is the average humidity in December in Grancy?

In December, the average relative humidity is 80%.

What is the wettest month in Grancy?

The month with the most rainfall is December, when the rain falls for 13.8 days and typically aggregates up to 103mm (4.06") of precipitation.

How much does it rain in Grancy in December?

In Grancy, Switzerland, in December, during 13.8 rainfall days, 103mm (4.06") of precipitation is typically accumulated.

What is the snowiest month in Grancy?

December is the month with the most snowfall in Grancy. Snow falls for 8 days and accumulates 184mm (7.24") of snow.

How much does it snow in Grancy in December?

In Grancy, Switzerland, in December, during 8 snowfall days, 184mm (7.24") of snow is typically accumulated.

What is the month with the shortest days in Grancy?

The month with the shortest days in Grancy is December, with an average of 8h and 36min of daylight.

What is the average length of the day in December in Grancy?

The average day length in December is 8h and 38min.

When are sunrise and sunset in December in Grancy?

In December, on the first day of the month, sunrise is at 07:58 and sunset at 16:48. On the last day of the month, in Grancy, sunrise is at 08:18 and sunset at 16:56 CET.

What is the month with the least sunshine in Grancy?

December has the least sunshine of the year in Grancy, Switzerland, with an average of 5.7h of sunshine.

How long on average sun shines in December in Grancy?

In December, the average sunshine duration is 5.7h.

When is the lowest UV index in Grancy?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grancy.

What is the UV index reading in December in Grancy?

The average daily maximum UV index in December in Grancy, Switzerland, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Grancy, Switzerland

Average temperature in December - Grancy, Switzerland
  • Average high temperature in December: 4.9°C

The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in December: -0.4°C

The month with the highest average low temperature is July (12.6°C).
The coldest months (with the lowest average low temperature) are January and February (-2.2°C).

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Average pressure in December
Grancy, Switzerland

Average pressure in December - Grancy, Switzerland
  • Average pressure in December: 1021.1mbar

The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in December
Grancy, Switzerland

Average wind speed in December - Grancy, Switzerland
  • Average wind speed in December: 11.7km/h

The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).

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Average humidity in December
Grancy, Switzerland

Average humidity in December - Grancy, Switzerland
  • Average humidity in December: 80%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
Grancy, Switzerland

Average rainfall in December - Grancy, Switzerland
  • Average rainfall in December: 103mm

The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is September (38mm).

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Average rainfall days in December
Grancy, Switzerland

Average rainfall days in December - Grancy, Switzerland
  • Average rainfall days in December: 13.8 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (11.8 days).

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Average snowfall in December
Grancy, Switzerland

Average snowfall in December - Grancy, Switzerland
  • Average snowfall in December: 184mm

The month with the highest snowfall is December (184mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Grancy, Switzerland

Average snowfall days in December - Grancy, Switzerland
  • Average snowfall days in December: 8 days

The month with the highest number of snowfall days is January (10.3 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
Grancy, Switzerland

Average daylight in December / Average sunshine in December - Grancy, Switzerland
  • Average daylight in December: 8h and 4min

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

  • Average sunshine in December: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in December
Grancy, Switzerland

Average sunshine days in December - Grancy, Switzerland
  • Average sunshine days in December: 13 days

The month with the most sunshine days is October (16 days).
The month with the least sunshine days is June (6.7 days).

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Average UV index in December
Grancy, Switzerland

Average UV index in December - Grancy, Switzerland
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Grancy, Switzerland

Average cloud cover in December - Grancy, Switzerland
  • Average cloud cover in December: 40

The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Grancy, Switzerland

Average visibility in December - Grancy, Switzerland
  • Average visibility in December: 9km

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

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Grancy, Switzerland

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