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
December signifies a gentle decline in Grattery's average high-temperature, easing from a frosty 48.6°F in November to a cold 41.9°F. An average low-temperature of 33.3°F is witnessed throughout the month of December, a mere drop from the daytime peak.Humidity
With an average relative humidity of 88%, December is the most humid month in Grattery.Rainfall
December is the month with the most rainfall in Grattery, France. Rain falls for 15.7 days and accumulates 3.31" of precipitation.Snowfall
Months with snowfall in Grattery are January through March, October through December. In Grattery, in December, snow falls for 4.5 days, with typically accumulated 1.73" of snow. Throughout the year, in Grattery, there are 19.6 snowfall days, and 8.46" of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 08:03 and sunset at 16:46. On the last day of December, sunrise is at 08:24 and sunset at 16:53 CET.
Sunshine
With an average of 4.3h of sunshine, December has the least sunshine of the year in Grattery.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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Grattery?
What is the most humid month in Grattery?
What is the average humidity in December in Grattery?
What is the wettest month in Grattery?
How many days does it rain in December in Grattery?
How much does it snow in Grattery in December?
What is the month with the shortest days in Grattery?
How many hours of daylight does Grattery have in December?
What time are sunrise and sunset in December in Grattery?
What is the month with the least sunshine in Grattery?
How long on average sun shines in December in Grattery?
What is the month with the lowest UV index in Grattery?
What is the UV index intensity in December in Grattery?
Average temperature in December
Grattery, France
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is August (75.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 33.3°F
The months with the highest average low temperature are July and August (55.4°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Grattery, France
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is December (30.14"Hg).
The month with the lowest atmospheric pressure is November (29.98"Hg).
Average wind speed in December
Grattery, France
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Grattery, France
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Grattery, France
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in December
Grattery, France
- Average rainfall days in December: 15.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in December
Grattery, France
- Average snowfall in December: 1.73"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Grattery, France
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.1 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
Grattery, 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 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in December
Grattery, France
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in December
Grattery, 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, November and December (UV index 2).
Average cloud cover in December
Grattery, France
- Average cloud cover in December: 56
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Grattery, France
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, July and August (6mi).
The months with the lowest visibility are January, May, June, September, October, November and December (5mi).
