December weather forecastLonny, France
December
Weather in December
The first month of the winter, December, is also a wintry month in Lonny, France, with temperature in the range of an average high of 5.2°C (41.4°F) and an average low of 1.2°C (34.2°F).Temperature
The arrival of December correlates with a minor temperature reduction, down from November's frosty 8.5°C (47.3°F) to an icy 5.2°C (41.4°F). Recording a slight drop from the daily maximum, Lonny notes an average low temperature of 1.2°C (34.2°F) in the month of December.Humidity
December is the most humid month, with an average relative humidity of 92%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.4 days and typically aggregates up to 80mm (3.15") of precipitation.Snowfall
January through April, October through December are months with snowfall in Lonny. In Lonny, France, during December, snow falls for 3.8 days and regularly aggregates up to 39mm (1.54") of snow. Throughout the year, in Lonny, there are 16.5 snowfall days, and 171mm (6.73") of snow is accumulated.Daylight
The month with the shortest days in Lonny is December, with an average of 8h and 12min of daylight.On the first day of December in Lonny, sunrise is at 08:18 and sunset at 16:43. On the last day of the month, sunrise is at 08:39 and sunset at 16:50 CET.
Sunshine
December has the least sunshine of the year, with an average of 3.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lonny. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lonny, France
- Average high temperature in December: 5.2°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (3.9°C).
- Average low temperature in December: 1.2°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in December
Lonny, France
- Average pressure in December: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in December
Lonny, France
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Lonny, France
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Lonny, France
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in December
Lonny, France
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is December (18.4 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in December
Lonny, France
- Average snowfall in December: 39mm
The month with the highest snowfall is January (56mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Lonny, France
- Average snowfall days in December: 3.8 days
The months with the highest number of snowfall days are January and February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lonny, France
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in December
Lonny, France
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in December
Lonny, 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
Lonny, France
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Lonny, France
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
