December weather forecast
Riofrío de Riaza, Spain

December

Weather in December

The first month of the winter, December, is still a chilly month in Riofrío de Riaza, Spain, with an average temperature varying between 0.8°C (33.4°F) and 7.9°C (46.2°F).

Temperature

December's onset sees an average high-temperature of a frosty 7.9°C (46.2°F), exhibiting a slight fluctuation from the previous month. In December, Riofrío de Riaza experiences a temperature dip to an average of 0.8°C (33.4°F) at night.

Humidity

The average relative humidity in December in Riofrío de Riaza is 78%.

Rainfall

In Riofrío de Riaza, in December, it is raining for 8.9 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, there are 108.3 rainfall days, and 315mm (12.4") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Riofrío de Riaza, in December, during 1.5 snowfall days, 12mm (0.47") of snow is typically accumulated. Throughout the year, there are 22.6 snowfall days, and 273mm (10.75") of snow is accumulated.

Daylight

December has the shortest days of the year in Riofrío de Riaza, Spain, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 08:20 and sunset at 17:45. On the last day of December, sunrise is at 08:39 and sunset at 17:54 CET.

Sunshine

With an average of 5.8h of sunshine, December has the least sunshine of the year in Riofrío de Riaza.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. 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:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

What is the usual temperature for Riofrío de Riaza in December?
In Riofrío de Riaza, 7.9°C (46.2°F) is the average high-temperature and 0.8°C (33.4°F) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 28°C (82.4°F).
What is the average humidity in December in Riofrío de Riaza?
The average relative humidity in December in Riofrío de Riaza is 78%.
How much does it rain in Riofrío de Riaza in December?
In December, in Riofrío de Riaza, the rain falls for 8.9 days. Throughout December, 32mm (1.26") of precipitation is accumulated.
How much does it snow in Riofrío de Riaza in December?
In Riofrío de Riaza, Spain, in December, snow falls for 1.5 days, with typically accumulated 12mm (0.47") of snow.
What is the month with the shortest days in Riofrío de Riaza?
December has the shortest days of the year in Riofrío de Riaza, with an average of 9h and 18min of daylight.
How many hours of daylight does Riofrío de Riaza have in December?
The average day length in December in Riofrío de Riaza, Spain, is 9h and 16min.
When is the sunrise / sunset in December in Riofrío de Riaza?
On the first day of December in Riofrío de Riaza, sunrise is at 08:20 and sunset at 17:45. On the last day of the month, sunrise is at 08:39 and sunset at 17:54 CET.
What is the month with the least sunshine in Riofrío de Riaza?
December has the least sunshine of the year, with an average of 5.8h of sunshine.
How long on average sun shines in December in Riofrío de Riaza?
The average sunshine duration in December in Riofrío de Riaza is 5.8h.
What are the months with the lowest UV index in Riofrío de Riaza?
The months with the lowest UV index in Riofrío de Riaza, Spain, are January through March, November and December, with an average maximum UV index of 2.
What is the UV index reading in December in Riofrío de Riaza?
The average daily maximum UV index in December in Riofrío de Riaza 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
Riofrío de Riaza, Spain
  • Average high temperature in December: 7.9°C

The warmest months (with the highest average high temperature) are July and August (28.3°C).
The month with the lowest average high temperature is January (6.5°C).

  • Average low temperature in December: 0.8°C

The months with the highest average low temperature are July and August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-0.3°C).

Average pressure in December
Riofrío de Riaza, Spain
  • Average pressure in December: 1023.6mbar

The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

Average wind speed in December
Riofrío de Riaza, Spain
  • Average wind speed in December: 10.5km/h

The windiest month (with the highest average wind speed) is February (13.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

Average humidity in December
Riofrío de Riaza, Spain
  • Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (43%).

Average rainfall in December
Riofrío de Riaza, Spain
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is April (54mm).
The driest month (with the least rainfall) is August (4mm).

Average rainfall days in December
Riofrío de Riaza, Spain
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is August (3 days).

Average snowfall in December
Riofrío de Riaza, Spain
  • Average snowfall in December: 12mm

The month with the highest snowfall is January (109mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Riofrío de Riaza, Spain
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Riofrío de Riaza, Spain
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in December
Riofrío de Riaza, Spain
  • Average sunshine days in December: 20 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is February (13.3 days).

Average UV index in December
Riofrío de Riaza, Spain
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Riofrío de Riaza, Spain
  • Average cloud cover in December: 39

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).

Average visibility in December
Riofrío de Riaza, Spain
  • Average visibility in December: 9km

The months with the highest visibility are June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).

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