December weather forecastViernheim, Germany
December
Weather in December
The first month of the winter, December, is also an icy month in Viernheim, Germany, with an average temperature fluctuating between 0.7°C (33.3°F) and 5°C (41°F).Temperature
With the onset of December, Viernheim's average high-temperature slightly adjusts, moderately receding from November's frosty 8.7°C (47.7°F) to a cold 5°C (41°F). Recording a slight decline in temperature during the nights, Viernheim's December temperatures average at 0.7°C (33.3°F).Humidity
January and December, with an average relative humidity of 86%, are the most humid months in Viernheim.Rainfall
In Viernheim, in December, during 14.4 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Viernheim, during the entire year, the rain falls for 157.6 days and collects up to 360mm (14.17") of precipitation.Snowfall
Months with snowfall are January through March, October through December. The month with the most snowfall is December, when snow falls for 4 days and typically aggregates up to 28mm (1.1") of snow.Daylight
December has the shortest days of the year in Viernheim, with an average of 8h and 12min of daylight.On the first day of December, sunrise is at 08:01 and sunset at 16:28. On the last day of the month, sunrise is at 08:21 and sunset at 16:35 CET.
Sunshine
The month with the least sunshine is December, with an average of 3.8h of sunshine.UV index
The months with the lowest UV index in Viernheim are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Viernheim, Germany
- Average high temperature in December: 5°C
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in December: 0.7°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in December
Viernheim, Germany
- Average pressure in December: 1018.7mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in December
Viernheim, Germany
- Average wind speed in December: 12.2km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity in December
Viernheim, Germany
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in December
Viernheim, Germany
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is May (47mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Viernheim, Germany
- Average rainfall days in December: 14.4 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in December
Viernheim, Germany
- Average snowfall in December: 28mm
The month with the highest snowfall is December (28mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Viernheim, Germany
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Viernheim, Germany
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Viernheim, Germany
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Viernheim, Germany
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Viernheim, 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 32).
Average visibility in December
Viernheim, Germany
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
