December weather forecastRiedau, Austria

December

Weather in December

The first month of the winter, December, is still a cold month in Riedau, Austria, with an average temperature fluctuating between 3.3°C (37.9°F) and -1.5°C (29.3°F).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a chilly 8.3°C (46.9°F) in November to a cold 3.3°C (37.9°F). Riedau sees a minor drop to an average minimum temperature of -1.5°C (29.3°F) during the night in the month of December.

Humidity

In Riedau, the average relative humidity in December is 86%.

Rainfall

In December, the rain falls for 13.9 days. Throughout December, 73mm (2.87") of precipitation is accumulated. In Riedau, during the entire year, the rain falls for 178.4 days and collects up to 822mm (32.36") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Riedau, during December, snow falls for 10.6 days and regularly aggregates up to 158mm (6.22") of snow. Throughout the year, there are 47.2 snowfall days, and 756mm (29.76") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 24min of daylight.
On the first day of December, sunrise is at 07:35 and sunset at 16:13. On the last day of the month, sunrise is at 07:56 and sunset at 16:20 CET.

Sunshine

With an average of 4.2h of sunshine, December has the least sunshine of the year.

UV index

In Riedau, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

The average high-temperature, in December, in Riedau, is 3.3°C (37.9°F), while the average low-temperature is -1.5°C (29.3°F).

In December, the average relative humidity is 86%.

In December, the rain falls for 13.9 days. Throughout December, 73mm (2.87") of precipitation is accumulated.

In Riedau, during December, snow falls for 10.6 days and regularly aggregates up to 158mm (6.22") of snow.

With an average of 8h and 24min of daylight, December has the shortest days of the year.

In Riedau, the average day length in December is 8h and 25min.

On the first day of December, sunrise is at 07:35 and sunset at 16:13. On the last day of the month, sunrise is at 07:56 and sunset at 16:20 CET.

December has the least sunshine of the year, with an average of 4.2h of sunshine.

The average sunshine duration in December is 4.2h.

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Riedau, Austria

  • Average high temperature in December: 3.3°C

The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (1.6°C).

  • Average low temperature in December: -1.5°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

Average pressure in December
Riedau, Austria

  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is December (1020.2mbar).
The months with the lowest atmospheric pressure are April and May (1015.7mbar).

Average wind speed in December
Riedau, Austria

  • Average wind speed in December: 9.8km/h

The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is August (6.9km/h).

Average humidity in December
Riedau, Austria

  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Riedau, Austria

  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is July (97mm).
The driest month (with the least rainfall) is April (33mm).

Average rainfall days in December
Riedau, Austria

  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (10.4 days).

Average snowfall in December
Riedau, Austria

  • Average snowfall in December: 158mm

The month with the highest snowfall is January (255mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Riedau, Austria

  • Average snowfall days in December: 10.6 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Riedau, Austria

  • Average daylight in December: 8h and 24min

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

  • Average sunshine in December: 4h and 12min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in December
Riedau, Austria

  • Average sunshine days in December: 11 days

The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is June (7.9 days).

Average UV index in December
Riedau, Austria

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in December
Riedau, Austria

  • Average cloud cover in December: 56

The months with the most cloud cover are January, February and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Riedau, Austria

  • 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 and February (7km).