December weather forecast
Troisdorf, Germany

December

Weather in December

The first month of the winter, December, is also a wintry month in Troisdorf, Germany, with temperature in the range of an average high of 5.4°C (41.7°F) and an average low of 1.2°C (34.2°F).

Temperature

In the transition to December, Troisdorf observes a minor drop in the average high-temperature, shifting from a chilly 8.9°C (48°F) in November to a cold 5.4°C (41.7°F). The temperature during December sees a subtle transition from day to night, averaging a low of 1.2°C (34.2°F).

Humidity

With an average relative humidity of 89%, December is the most humid month.

Rainfall

In Troisdorf, in December, it is raining for 13.6 days, with typically 29mm (1.14") of accumulated precipitation. In Troisdorf, during the entire year, the rain falls for 156 days and collects up to 305mm (12.01") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Troisdorf, in December, during 5.1 snowfall days, 25mm (0.98") of snow is typically accumulated. In Troisdorf, during the entire year, snow falls for 19.5 days and aggregates up to 98mm (3.86") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 0min of daylight.
On the first day of December, sunrise is at 08:12 and sunset at 16:28. On the last day of the month, sunrise is at 08:33 and sunset at 16:35 CET.

Sunshine

December has the least sunshine of the year, with an average of 3.8h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold does it get in December?
During December, Troisdorf experiences an average high-temperature of 5.4°C (41.7°F) and a low-temperature of 1.2°C (34.2°F).
What is the most humid month?
With an average relative humidity of 89%, December is the most humid month in Troisdorf, Germany.
What is the average humidity in December?
The average relative humidity in December is 89%.
How many days does it rain in December?
In Troisdorf, in December, it is raining for 13.6 days, with typically 29mm (1.14") of accumulated precipitation.
How much does it snow in December?
In Troisdorf, in December, during 5.1 snowfall days, 25mm (0.98") of snow is typically accumulated.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 0min of daylight.
How many hours of daylight does Troisdorf have in December?
In Troisdorf, the average day length in December is 8h and 2min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 08:12 and sunset at 16:28. On the last day of the month, sunrise is at 08:33 and sunset at 16:35 CET.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 3.8h of sunshine.
How long on average sun shines in December?
The average sunshine duration in December in Troisdorf, Germany, is 3.8h.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
How high is the UV index in December?
In Troisdorf, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Troisdorf, Germany
  • Average high temperature in December: 5.4°C

The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).

  • Average low temperature in December: 1.2°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).

Average pressure in December
Troisdorf, Germany
  • Average pressure in December: 1017.1mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).

Average wind speed in December
Troisdorf, Germany
  • Average wind speed in December: 12.5km/h

The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in December
Troisdorf, Germany
  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).

Average rainfall in December
Troisdorf, Germany
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).

Average rainfall days in December
Troisdorf, Germany
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).

Average snowfall in December
Troisdorf, Germany
  • Average snowfall in December: 25mm

The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Troisdorf, Germany
  • Average snowfall days in December: 5.1 days

The month with the highest number of snowfall days is January (6 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
Troisdorf, Germany
  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

Average sunshine days in December
Troisdorf, Germany
  • Average sunshine days in December: 11.4 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).

Average UV index in December
Troisdorf, Germany
  • 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
Troisdorf, Germany
  • Average cloud cover in December: 62

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Troisdorf, Germany
  • Average visibility in December: 8km

The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).

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