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
Épernon marks the arrival of December with an average high-temperature of a chilly 7.2°C (45°F), hardly different from November's 10.2°C (50.4°F). Épernon notes a steady average temperature of 2.7°C (36.9°F) during the nights of December.Humidity
January and December, with an average relative humidity of 88%, are the most humid months in Épernon.Rainfall
In Épernon, in December, it is raining for 11.7 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, there are 158.6 rainfall days, and 374mm (14.72") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Épernon, during December, snow falls for 1.1 days and regularly aggregates up to 14mm (0.55") of snow. Throughout the year, there are 5.5 snowfall days, and 56mm (2.2") of snow is accumulated.Daylight
The month with the shortest days in Épernon is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 08:24 and sunset at 17:00. On the last day of December, sunrise is at 08:45 and sunset at 17:07 CET.
Sunshine
In December, the average sunshine in Épernon is 4.1h.UV index
The months with the lowest UV index in Épernon 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 hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are December temperatures in Épernon?
What are the most humid months in Épernon?
What is the average humidity in December in Épernon?
How much does it rain in Épernon in December?
How many days does it snow in December in Épernon?
What is the month with the shortest days in Épernon?
How many hours of daylight does Épernon have in December?
When is the sunrise / sunset in December in Épernon?
How long on average sun shines in December in Épernon?
What are the months with the lowest UV index in Épernon?
What is the UV index reading in December in Épernon?
Average temperature in December
Épernon, France
- Average high temperature in December: 7.2°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in December: 2.7°C
The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Épernon, 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 (1013.4mbar).
Average wind speed in December
Épernon, France
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Épernon, France
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Épernon, France
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is June (49mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in December
Épernon, France
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is September (10.1 days).
Average snowfall in December
Épernon, France
- Average snowfall in December: 14mm
The month with the highest snowfall is January (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Épernon, France
- Average snowfall days in December: 1.1 days
The months with the highest number of snowfall days are January and February (2 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
Épernon, 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 24min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 8h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Épernon, France
- Average sunshine days in December: 15.6 days
The months with the most sunshine days are September and October (17.7 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in December
Épernon, 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
Épernon, France
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in December
Épernon, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, May and June (8km).
Épernon, France
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