December weather forecast
Rongellen, Switzerland

December

Weather in December

December, the first month of the winter in Rongellen, is also a subzero cold month, with temperature in the range of an average high of -1.1°C (30°F) and an average low of -9°C (15.8°F).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a wintry 3.1°C (37.6°F) in November to a freezing cold -1.1°C (30°F). In the month of December, Rongellen experiences an average low-temperature of -9°C (15.8°F).

Humidity

In Rongellen, Switzerland, the average relative humidity in December is 85%.

Rainfall

In Rongellen, during December, the rain falls for 5.6 days and regularly aggregates up to 54mm (2.13") of precipitation. In Rongellen, during the entire year, the rain falls for 139.1 days and collects up to 628mm (24.72") of precipitation.

Snowfall

Months with snowfall in Rongellen, Switzerland, are January through December. The month with the most snowfall in Rongellen is December, when snow falls for 17.5 days and typically aggregates up to 403mm (15.87") of snow.

Daylight

The month with the shortest days in Rongellen is December, with an average of 8h and 36min of daylight.
On the first day of December in Rongellen, Switzerland, sunrise is at 07:46 and sunset at 16:36. On the last day of the month, sunrise is at 08:06 and sunset at 16:44 CET.

Sunshine

The average sunshine in December in Rongellen is 5.3h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 1 in December leads to these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

How cold is it in Rongellen in December?
In December, in Rongellen, the average high-temperature is -1.1°C (30°F), and the average low-temperature is -9°C (15.8°F).
What is the average humidity in December in Rongellen?
In December, the average relative humidity in Rongellen is 85%.
How much does it rain in Rongellen in December?
In Rongellen, Switzerland, in December, it is raining for 5.6 days, with typically 54mm (2.13") of accumulated precipitation.
What is the snowiest month in Rongellen?
The month with the most snowfall is December, when snow falls for 17.5 days and typically aggregates up to 403mm (15.87") of snow.
How many days does it snow in December in Rongellen?
In Rongellen, in December, snow falls for 17.5 days, with typically accumulated 403mm (15.87") of snow.
What is the month with the shortest days in Rongellen?
With an average of 8h and 36min of daylight, December has the shortest days of the year in Rongellen.
What is the average length of the day in December in Rongellen?
In Rongellen, Switzerland, the average day length in December is 8h and 38min.
When is the sunrise / sunset in December in Rongellen?
In December, on the first day of the month, sunrise is at 07:46 and sunset at 16:36. On the last day of the month, in Rongellen, Switzerland, sunrise is at 08:06 and sunset at 16:44 CET.
How many hours of sunshine does Rongellen have in December?
In December, the average sunshine duration is 5.3h.
What is the month with the lowest UV index in Rongellen?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
What is the UV index reading in December in Rongellen?
In December, the average daily maximum UV index in Rongellen, Switzerland, is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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 - Rongellen, Switzerland
Average temperature in December
Rongellen, Switzerland
  • Average high temperature in December: -1.1°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in December: -9°C

The months with the highest average low temperature are July and August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-10.8°C).

Average pressure in December - Rongellen, Switzerland
Average pressure in December
Rongellen, Switzerland
  • Average pressure in December: 1020.7mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in December - Rongellen, Switzerland
Average wind speed in December
Rongellen, Switzerland
  • Average wind speed in December: 8.2km/h

The windiest months (with the highest average wind speed) are February and November (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).

Average humidity in December - Rongellen, Switzerland
Average humidity in December
Rongellen, Switzerland
  • Average humidity in December: 85%

The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is July (79%).

Average rainfall in December - Rongellen, Switzerland
Average rainfall in December
Rongellen, Switzerland
  • Average rainfall in December: 54mm

The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is February (35mm).

Average rainfall days in December - Rongellen, Switzerland
Average rainfall days in December
Rongellen, Switzerland
  • Average rainfall days in December: 5.6 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in December - Rongellen, Switzerland
Average snowfall in December
Rongellen, Switzerland
  • Average snowfall in December: 403mm

The month with the highest snowfall is December (403mm).
The month with the least snowfall is August (1mm).

Average snowfall days in December - Rongellen, Switzerland
Average snowfall days in December
Rongellen, Switzerland
  • Average snowfall days in December: 17.5 days

The month with the highest number of snowfall days is January (18.3 days).
The month with the least snowfall days is July (0.1 days).

Average daylight in December / Average sunshine in December - Rongellen, Switzerland
Average daylight in December /
Average sunshine in December
Rongellen, Switzerland
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in December - Rongellen, Switzerland
Average sunshine days in December
Rongellen, Switzerland
  • Average sunshine days in December: 13.3 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in December - Rongellen, Switzerland
Average UV index in December
Rongellen, Switzerland
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in December - Rongellen, Switzerland
Average cloud cover in December
Rongellen, Switzerland
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 40).

Average visibility in December - Rongellen, Switzerland
Average visibility in December
Rongellen, Switzerland
  • Average visibility in December: 7km

The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).

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