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
With the beginning of December, the average high-temperature shows a small decrease, transitioning from 9.8°C (49.6°F) in November to a still frosty 6.1°C (43°F). Throughout December nights, Groissiat records a consistent low-temperature averaging a cold 1.2°C (34.2°F).Humidity
The most humid month in Groissiat is December, with an average relative humidity of 87%.Rainfall
In December, in Groissiat, the rain falls for 15.1 days. Throughout December, 90mm (3.54") of precipitation is accumulated. In Groissiat, during the entire year, the rain falls for 185.5 days and collects up to 860mm (33.86") of precipitation.Snowfall
Months with snowfall are January through March, October through December. In Groissiat, in December, snow falls for 3.8 days, with typically accumulated 47mm (1.85") of snow. In Groissiat, during the entire year, snow falls for 16 days and aggregates up to 196mm (7.72") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 08:00 and sunset at 16:53. On the last day of December, sunrise is at 08:20 and sunset at 17:01 CET.
Sunshine
January and December, with an average of 4.6h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Groissiat are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Groissiat?
What is the most humid month in Groissiat?
What is the average humidity in December in Groissiat?
How many days does it rain in December in Groissiat?
How many days does it snow in December in Groissiat?
What is the month with the shortest days in Groissiat?
How many hours of daylight does Groissiat have in December?
When is the sunrise / sunset in December in Groissiat?
What is the month with the least sunshine in Groissiat?
How many hours of sunshine does Groissiat have in December?
What is the month with the lowest UV index in Groissiat?
How high is the UV index in December in Groissiat?
Average temperature in December
Groissiat, France
- Average high temperature in December: 6.1°C
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in December: 1.2°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in December
Groissiat, France
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Groissiat, France
- Average wind speed in December: 9.9km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in December
Groissiat, France
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Groissiat, France
- Average rainfall in December: 90mm
The wettest month (with the highest rainfall) is November (93mm).
The driest month (with the least rainfall) is September (51mm).
Average rainfall days in December
Groissiat, France
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is October (13 days).
Average snowfall in December
Groissiat, France
- Average snowfall in December: 47mm
The month with the highest snowfall is January (56mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Groissiat, France
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Groissiat, France
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in December
Groissiat, France
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Groissiat, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Groissiat, France
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Groissiat, France
- Average visibility in December: 8km
The months with the highest visibility are February, July and August (9km).
The months with the lowest visibility are January, March, April, May, June, September, October, November and December (8km).
