December weather forecast
Diefmatten, France

December

Weather in December

December, the first month of the winter in Diefmatten, is still a cold month, with an average temperature ranging between max 4.6°C (40.3°F) and min -0.4°C (31.3°F).

Temperature

With the onset of December, Diefmatten's average high-temperature slightly adjusts, moderately receding from November's chilly 8°C (46.4°F) to a cold 4.6°C (40.3°F). Diefmatten's average low temperature, barely cooler than the daytime high, steadies at a subzero cold -0.4°C (31.3°F) during December.

Humidity

The months with the highest humidity in Diefmatten are January and December, with an average relative humidity of 88%.

Rainfall

In Diefmatten, in December, during 15.1 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, there are 189.8 rainfall days, and 741mm (29.17") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Diefmatten. In Diefmatten, France, during December, snow falls for 7.8 days and regularly aggregates up to 91mm (3.58") of snow. In Diefmatten, during the entire year, snow falls for 37.1 days and aggregates up to 450mm (17.72") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 07:59 and sunset at 16:41. On the last day of December, in Diefmatten, sunrise is at 08:20 and sunset at 16:49 CET.

Sunshine

With an average of 4.2h of sunshine, December has the least sunshine of the year.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Diefmatten. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

Is it cold in Diefmatten during December?
Diefmatten in December has an average high-temperature of 4.6°C (40.3°F) and an average low-temperature of -0.4°C (31.3°F).
What are the most humid months in Diefmatten?
January and December, with an average relative humidity of 88%, are most humid months in Diefmatten, France.
What is the average humidity in December in Diefmatten?
The average relative humidity in December in Diefmatten is 88%.
How much does it rain in Diefmatten in December?
In December, the rain falls for 15.1 days. Throughout December, 84mm (3.31") of precipitation is accumulated.
How much does it snow in Diefmatten in December?
In December, it is snowing for 7.8 days. Throughout December, 91mm (3.58") of snow is accumulated.
What is the month with the shortest days in Diefmatten?
The month with the shortest days in Diefmatten, France, is December, with an average of 8h and 30min of daylight.
What is the average length of the day in December in Diefmatten?
The average day length in December in Diefmatten is 8h and 29min.
When are sunrise and sunset in December in Diefmatten?
In December, on the first day of the month, sunrise is at 07:59 and sunset at 16:41. On the last day of the month, sunrise is at 08:20 and sunset at 16:49 CET.
What is the month with the least sunshine in Diefmatten?
With an average of 4.2h of sunshine, December has the least sunshine of the year in Diefmatten, France.
How many hours of sunshine does Diefmatten have in December?
In Diefmatten, the average sunshine duration in December is 4.2h.
What is the month with the lowest UV index in Diefmatten?
The months with the lowest UV index in Diefmatten are January, February, October through December, with an average maximum UV index of 2.
How high is the UV index in December in Diefmatten?
In Diefmatten, France, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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 - Diefmatten, France
Average temperature in December
Diefmatten, France
  • Average high temperature in December: 4.6°C

The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (3.2°C).

  • Average low temperature in December: -0.4°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).

Average pressure in December - Diefmatten, France
Average pressure in December
Diefmatten, France
  • Average pressure in December: 1020.6mbar

The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).

Average wind speed in December - Diefmatten, France
Average wind speed in December
Diefmatten, France
  • Average wind speed in December: 11.9km/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 (7.4km/h).

Average humidity in December - Diefmatten, France
Average humidity in December
Diefmatten, France
  • Average humidity in December: 88%

The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is April (80%).

Average rainfall in December - Diefmatten, France
Average rainfall in December
Diefmatten, France
  • Average rainfall in December: 84mm

The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is September (36mm).

Average rainfall days in December - Diefmatten, France
Average rainfall days in December
Diefmatten, France
  • Average rainfall days in December: 15.1 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (12.4 days).

Average snowfall in December - Diefmatten, France
Average snowfall in December
Diefmatten, France
  • Average snowfall in December: 91mm

The month with the highest snowfall is January (114mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Diefmatten, France
Average snowfall days in December
Diefmatten, France
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Diefmatten, France
Average daylight in December /
Average sunshine in December
Diefmatten, France
  • Average daylight in December: 8h and 3min

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

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in December - Diefmatten, France
Average sunshine days in December
Diefmatten, France
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is June (7.3 days).

Average UV index in December - Diefmatten, France
Average UV index in December
Diefmatten, France
  • 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, October, November and December (UV index 2).

Average cloud cover in December - Diefmatten, France
Average cloud cover in December
Diefmatten, France
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December - Diefmatten, France
Average visibility in December
Diefmatten, France
  • Average visibility in December: 8km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).

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