December weather forecastRoinvilliers, France

December

Weather in December

The first month of the winter, December, is still a chilly month in Roinvilliers, France, with an average temperature fluctuating between 7.5°C (45.5°F) and 2.9°C (37.2°F).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to a frosty 7.5°C (45.5°F) from November's cool 10.6°C (51.1°F). Nighttime temperatures in Roinvilliers record an average of 2.9°C (37.2°F) throughout December.

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 86%.

Rainfall

In December, the rain falls for 13 days. Throughout December, 32mm (1.26") of precipitation is accumulated. Throughout the year, in Roinvilliers, there are 153.5 rainfall days, and 330mm (12.99") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. The months with the most snowfall in Roinvilliers, France, are February and December, with an average 15mm (0.59") of accumulated snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:21 and sunset at 16:58. On the last day of December, sunrise is at 08:42 and sunset at 17:06 CET.

Sunshine

In Roinvilliers, the average sunshine in December is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Frequently asked questions

The high-temperature, in December, in Roinvilliers, records 7.5°C (45.5°F), while the low-temperature is 2.9°C (37.2°F).

January and December, with an average relative humidity of 86%, are most humid months in Roinvilliers.

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

In Roinvilliers, during December, the rain falls for 13 days and regularly aggregates up to 32mm (1.26") of precipitation.

The months with the most snowfall in Roinvilliers are February and December, with an average 15mm (0.59") of accumulated snow.

In Roinvilliers, France, in December, during 1.7 snowfall days, 15mm (0.59") of snow is typically accumulated.

December has the shortest days of the year, with an average of 8h and 24min of daylight.

In December, the average day length in Roinvilliers is 8h and 25min.

In December, on the first day of the month, sunrise is at 08:21 and sunset at 16:58. On the last day of the month, sunrise is at 08:42 and sunset at 17:06 CET.

In December, the average sunshine duration in Roinvilliers is 4.2h.

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

In Roinvilliers, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Roinvilliers, France

  • Average high temperature in December: 7.5°C

The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (6°C).

  • Average low temperature in December: 2.9°C

The month with the highest average low temperature is August (15°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).

Average pressure in December
Roinvilliers, France

  • Average pressure in December: 1018.5mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).

Average wind speed in December
Roinvilliers, France

  • Average wind speed in December: 15km/h

The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).

Average humidity in December
Roinvilliers, France

  • Average humidity in December: 86%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Roinvilliers, France

  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in December
Roinvilliers, France

  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.1 days).

Average snowfall in December
Roinvilliers, France

  • Average snowfall in December: 15mm

The months with the highest snowfall are February and December (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Roinvilliers, France

  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Roinvilliers, France

  • Average daylight in December: 8h and 24min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 12min

The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Roinvilliers, France

  • Average sunshine days in December: 13 days

The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is June (11 days).

Average UV index in December
Roinvilliers, France

  • Average UV index in December: 2

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, November and December (UV index 2).

Average cloud cover in December
Roinvilliers, France

  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in December
Roinvilliers, France

  • 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).