December weather forecastRoot, Switzerland

December

Weather in December

December, the first month of the winter in Root, is also a wintry month, with an average temperature fluctuating between 3.4°C (38.1°F) and -2.7°C (27.1°F).

Temperature

A modest decline in the average high-temperature is seen during December, decreasing from a frosty 7.8°C (46°F) in November to a cold 3.4°C (38.1°F). In the month of December, the temperature in Root, Switzerland, generally rests at an average low of -2.7°C (27.1°F).

Humidity

In Root, the average relative humidity in December is 83%.

Rainfall

In December, the rain falls for 13.9 days. Throughout December, 89mm (3.5") of precipitation is accumulated. Throughout the year, there are 186.8 rainfall days, and 981mm (38.62") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Root. In Root, during December, snow falls for 6.5 days and regularly aggregates up to 148mm (5.83") of snow. In Root, during the entire year, snow falls for 35.5 days and aggregates up to 692mm (27.24") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 07:52 and sunset at 16:38. On the last day of the month, sunrise is at 08:12 and sunset at 16:46 CET.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year in Root.

UV index

The months with the lowest UV index in Root are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

In Root, in December, the average high-temperature is 3.4°C (38.1°F), and the average low-temperature is -2.7°C (27.1°F).

In Root, the average relative humidity in December is 83%.

In December, in Root, Switzerland, the rain falls for 13.9 days. Throughout December, 89mm (3.5") of precipitation is accumulated.

In Root, Switzerland, in December, snow falls for 6.5 days, with typically accumulated 148mm (5.83") of snow.

December has the shortest days of the year in Root, with an average of 8h and 36min of daylight.

In Root, the average day length in December is 8h and 34min.

In December, on the first day of the month, sunrise is at 07:52 and sunset at 16:38. On the last day of the month, in Root, sunrise is at 08:12 and sunset at 16:46 CET.

With an average of 5.4h of sunshine, December has the least sunshine of the year in Root.

The average sunshine duration in December in Root, Switzerland, is 5.4h.

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

In December, the average daily maximum UV index in Root is 2. A UV Index reading of 2, and below, represents a low health threat 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
Root, Switzerland

  • Average high temperature in December: 3.4°C

The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (2.2°C).

  • Average low temperature in December: -2.7°C

The month with the highest average low temperature is August (10.9°C).
The coldest month (with the lowest average low temperature) is February (-4.9°C).

Average pressure in December
Root, Switzerland

  • Average pressure in December: 1020.9mbar

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in December
Root, Switzerland

  • Average wind speed in December: 8.3km/h

The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).

Average humidity in December
Root, Switzerland

  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in December
Root, Switzerland

  • Average rainfall in December: 89mm

The wettest month (with the highest rainfall) is July (121mm).
The driest month (with the least rainfall) is September (52mm).

Average rainfall days in December
Root, Switzerland

  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is October (11.2 days).

Average snowfall in December
Root, Switzerland

  • Average snowfall in December: 148mm

The month with the highest snowfall is February (169mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Root, Switzerland

  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Root, Switzerland

  • Average daylight in December: 8h and 36min

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 24min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Root, Switzerland

  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (7.3 days).

Average UV index in December
Root, Switzerland

  • 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, March, November and December (UV index 2).

Average cloud cover in December
Root, Switzerland

  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Root, Switzerland

  • Average visibility in December: 8km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is January (7km).