December weather forecastGrettstadt, Germany
December
Weather in December
The first month of the winter, December, is also an icy month in Grettstadt, Germany, with an average temperature varying between -0.4°C (31.3°F) and 3.7°C (38.7°F).Temperature
As December arrives, Grettstadt's weather displays a minor decrease in high-temperatures, transitioning from November's frosty 7.8°C (46°F) to a cold 3.7°C (38.7°F). Grettstadt's nocturnal December readings average at a subzero cold -0.4°C (31.3°F), showing little variation from the daytime temperatures.Humidity
The months with the highest humidity in Grettstadt are January and December, with an average relative humidity of 89%.Rainfall
In Grettstadt, in December, it is raining for 14.5 days, with typically 50mm (1.97") of accumulated precipitation. In Grettstadt, during the entire year, the rain falls for 166.7 days and collects up to 488mm (19.21") of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Grettstadt, Germany, it is snowing for 6.5 days. Throughout December, 59mm (2.32") of snow is accumulated. In Grettstadt, during the entire year, snow falls for 32.4 days and aggregates up to 251mm (9.88") of snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Grettstadt.On the first day of December, sunrise is at 07:55 and sunset at 16:19. On the last day of the month, sunrise is at 08:17 and sunset at 16:26 CET.
Sunshine
With an average of 3.3h of sunshine, December has the least sunshine of the year in Grettstadt.UV index
In Grettstadt, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grettstadt, Germany
- Average high temperature in December: 3.7°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in December
Grettstadt, Germany
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1014.9mbar).
Average wind speed in December
Grettstadt, Germany
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is February (13.4km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in December
Grettstadt, Germany
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Grettstadt, Germany
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is June (57mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Grettstadt, Germany
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (10.7 days).
Average snowfall in December
Grettstadt, Germany
- Average snowfall in December: 59mm
The month with the highest snowfall is January (81mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Grettstadt, Germany
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (10.5 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
Grettstadt, Germany
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in December
Grettstadt, Germany
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in December
Grettstadt, Germany
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Grettstadt, Germany
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Grettstadt, Germany
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
