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
Weather in December
Temperature
December reveals a small adjustment in temperature, transitioning from an average high of 9.5°C (49.1°F) in November to a still frosty 6.4°C (43.5°F). The temperature during December experiences a small drop from daytime peaks, recording an average of 1.9°C (35.4°F) at night.Humidity
The most humid month in Gratreuil is December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Gratreuil is December, when the rain falls for 16.9 days and typically aggregates up to 69mm (2.72") of precipitation.Snowfall
Months with snowfall in Gratreuil are January through March, November and December. In Gratreuil, in December, during 3.2 snowfall days, 31mm (1.22") of snow is typically accumulated. Throughout the year, in Gratreuil, there are 12.3 snowfall days, and 111mm (4.37") of snow is accumulated.Daylight
The month with the shortest days in Gratreuil is December, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:15 and sunset at 16:45. On the last day of December, in Gratreuil, sunrise is at 08:36 and sunset at 16:52 CET.
Sunshine
With an average of 3.6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold is December in Gratreuil?
What is the most humid month in Gratreuil?
What is the average humidity in December in Gratreuil?
What is the rainiest month in Gratreuil?
How many days does it rain in December in Gratreuil?
How much does it snow in Gratreuil in December?
What is the month with the shortest days in Gratreuil?
What is the average length of the day in December in Gratreuil?
When is the sunrise / sunset in December in Gratreuil?
What is the month with the least sunshine in Gratreuil?
How many hours of sunshine does Gratreuil have in December?
What are the months with the lowest UV index in Gratreuil?
How high is the UV index in December in Gratreuil?
Average temperature in December
Gratreuil, France
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in December: 1.9°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in December
Gratreuil, France
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in December
Gratreuil, France
- Average wind speed in December: 14km/h
The windiest months (with the highest average wind speed) are February and December (14km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in December
Gratreuil, 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 (71%).
Average rainfall in December
Gratreuil, France
- Average rainfall in December: 69mm
The wettest month (with the highest rainfall) is December (69mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in December
Gratreuil, France
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (10.9 days).
Average snowfall in December
Gratreuil, France
- Average snowfall in December: 31mm
The month with the highest snowfall is January (37mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Gratreuil, France
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4 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
Gratreuil, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Gratreuil, France
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is December (8.7 days).
Average UV index in December
Gratreuil, 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
Gratreuil, France
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in December
Gratreuil, France
- Average visibility in December: 8km
The months with the highest visibility are March, April, July, August and September (9km).
The months with the lowest visibility are January, February, May, June, October, November and December (8km).
Gratreuil, France
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