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's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a fresh 10°C (50°F) in November to a frosty 7°C (44.6°F). The nighttime temperature in Le Héron demonstrates a marginal decline, averaging at a cold 2.6°C (36.7°F) during December.Humidity
The months with the highest humidity in Le Héron are January and December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Le Héron is December, when the rain falls for 15.2 days and typically aggregates up to 45mm (1.77") of precipitation.Snowfall
Months with snowfall in Le Héron, France, are January through April, November and December. In Le Héron, in December, snow falls for 1.5 days, with typically accumulated 24mm (0.94") of snow. In Le Héron, during the entire year, snow falls for 10 days and aggregates up to 83mm (3.27") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 08:29 and sunset at 16:57. On the last day of December, in Le Héron, sunrise is at 08:50 and sunset at 17:04 CET.
Sunshine
In December, the average sunshine is 4h.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 value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Le Héron?
What are the most humid months in Le Héron?
What is the average humidity in December in Le Héron?
What is the wettest month in Le Héron?
How much does it rain in Le Héron in December?
How many days does it snow in December in Le Héron?
What is the month with the shortest days in Le Héron?
How many hours of daylight does Le Héron have in December?
What time are sunrise and sunset in December in Le Héron?
How long on average sun shines in December in Le Héron?
When is the lowest UV index in Le Héron?
What is the UV index reading in December in Le Héron?
Average temperature in December
Le Héron, France
- Average high temperature in December: 7°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Le Héron, France
- Average pressure in December: 1017.4mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in December
Le Héron, France
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Le Héron, France
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Le Héron, France
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is December (45mm).
The driest months (with the least rainfall) are April and September (21mm).
Average rainfall days in December
Le Héron, France
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in December
Le Héron, France
- Average snowfall in December: 24mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Le Héron, France
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Le Héron, France
- Average daylight in December: 8h and 1min
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 12min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Le Héron, France
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Le Héron, France
- Average UV index in December: 2
The months with the highest UV index are 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
Le Héron, France
- Average cloud cover in December: 61
The months with the most cloud cover are January and November (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 44).
Average visibility in December
Le Héron, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April and December (9km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (8km).
