December weather forecastHeilenbach, Germany
December
Weather in December
December, the first month of the winter in Heilenbach, is also an icy month, with an average temperature varying between -0.3°C (31.5°F) and 3.9°C (39°F).Temperature
A mild drop in Heilenbach's average high-temperature is observed in December, transitioning from a chilly 7.3°C (45.1°F) in November to an icy 3.9°C (39°F). Heilenbach, during December nights, experiences a subtle shift to a low average of -0.3°C (31.5°F) from the day's heat.Humidity
January, November and December, with an average relative humidity of 92%, are the most humid months.Rainfall
The month with the most rainfall in Heilenbach is December, when the rain falls for 13.3 days and typically aggregates up to 66mm (2.6") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Heilenbach, Germany, during December, snow falls for 7.3 days and regularly aggregates up to 88mm (3.46") of snow. In Heilenbach, during the entire year, snow falls for 39.8 days and aggregates up to 371mm (14.61") of snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:11 and sunset at 16:34. On the last day of December, sunrise is at 08:32 and sunset at 16:41 CET.
Sunshine
December has the least sunshine of the year, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.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. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Heilenbach, Germany
- Average high temperature in December: 3.9°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in December: -0.3°C
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).
Average pressure in December
Heilenbach, Germany
- 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 (1013.7mbar).
Average wind speed in December
Heilenbach, Germany
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Heilenbach, Germany
- Average humidity in December: 92%
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (79%).
Average rainfall in December
Heilenbach, Germany
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (31mm).
Average rainfall days in December
Heilenbach, Germany
- Average rainfall days in December: 13.3 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in December
Heilenbach, Germany
- Average snowfall in December: 88mm
The month with the highest snowfall is February (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Heilenbach, Germany
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heilenbach, Germany
- 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: 2h and 42min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in December
Heilenbach, Germany
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Heilenbach, Germany
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Heilenbach, Germany
- Average cloud cover in December: 75
The month with the most cloud cover is December (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in December
Heilenbach, Germany
- Average visibility in December: 7km
The month with the highest visibility is April (9km).
The months with the lowest visibility are November and December (7km).
