Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Riaville's progression into December involves a gentle drop in the average high-temperature, from a chilly 8.5°C (47.3°F) in November to a cold 5.4°C (41.7°F). The nighttime temperature in Riaville in December experiences a minor dip, averaging a still wintry 1°C (33.8°F).Humidity
December is the most humid month, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Riaville is December, when the rain falls for 16.2 days and typically aggregates up to 66mm (2.6") of precipitation.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall in Riaville, France, is December, when snow falls for 5.6 days and typically aggregates up to 57mm (2.24") of snow.Daylight
The month with the shortest days in Riaville, France, is December, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:10 and sunset at 16:42. On the last day of December, in Riaville, sunrise is at 08:31 and sunset at 16:49 CET.
Sunshine
December has the least sunshine of the year in Riaville, France, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index in Riaville, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Riaville in December?
What is the most humid month in Riaville?
What is the average humidity in December in Riaville?
What is the rainiest month in Riaville?
How many days does it rain in December in Riaville?
What is the snowiest month in Riaville?
How many days does it snow in December in Riaville?
What is the month with the shortest days in Riaville?
How many hours of daylight does Riaville have in December?
When is the sunrise / sunset in December in Riaville?
What is the month with the least sunshine in Riaville?
How many hours of sunshine does Riaville have in December?
What is the month with the lowest UV index in Riaville?
What is the UV index intensity in December in Riaville?
Average temperature in December
Riaville, France
- Average high temperature in December: 5.4°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in December: 1°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).
Average pressure in December
Riaville, France
- Average pressure in December: 1019.2mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is November (1014.6mbar).
Average wind speed in December
Riaville, France
- Average wind speed in December: 16km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in December
Riaville, France
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Riaville, France
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is September (35mm).
Average rainfall days in December
Riaville, France
- Average rainfall days in December: 16.2 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is September (11 days).
Average snowfall in December
Riaville, France
- Average snowfall in December: 57mm
The month with the highest snowfall is December (57mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Riaville, France
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riaville, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 3min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Riaville, France
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Riaville, 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
Riaville, France
- Average cloud cover in December: 65
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Riaville, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, June, July, August and September (9km).
The months with the lowest visibility are January, May, October, November and December (8km).
