Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December brings a minor shift in the average high-temperature, adjusting from a chilly 8.9°C (48°F) in November to an icy 5.9°C (42.6°F). Grolloo's nighttime average temperature in December drops marginally from the daytime highs, settling at 2.1°C (35.8°F).Humidity
The most humid month in Grolloo is December, with an average relative humidity of 89%.Rainfall
In Grolloo, during December, the rain falls for 16.7 days and regularly aggregates up to 42mm (1.65") of precipitation. In Grolloo, during the entire year, the rain falls for 176.6 days and collects up to 457mm (17.99") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, in Grolloo, it is snowing for 2.8 days. Throughout December, 23mm (0.91") of snow is accumulated. In Grolloo, Netherlands, during the entire year, snow falls for 13.4 days and aggregates up to 88mm (3.46") of snow.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:24 and sunset at 16:20. On the last day of December, in Grolloo, sunrise is at 08:46 and sunset at 16:26 CET.
Sunshine
With an average of 3.2h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To guard against the harmful effects of the Sun, minimize exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Grolloo?
What is the most humid month in Grolloo?
What is the average humidity in December in Grolloo?
How many days does it rain in December in Grolloo?
How many days does it snow in December in Grolloo?
What is the month with the shortest days in Grolloo?
What is the average length of the day in December in Grolloo?
When is the sunrise / sunset in December in Grolloo?
What is the month with the least sunshine in Grolloo?
How many hours of sunshine does Grolloo have in December?
What are the months with the lowest UV index in Grolloo?
What is the UV index intensity in December in Grolloo?
Average temperature in December
Grolloo, Netherlands
- Average high temperature in December: 5.9°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in December: 2.1°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (0.5°C).
Average pressure in December
Grolloo, Netherlands
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is September (1016.5mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in December
Grolloo, Netherlands
- Average wind speed in December: 18.9km/h
The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest months (with the lowest average wind speed) are July and August (12.7km/h).
Average humidity in December
Grolloo, Netherlands
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Grolloo, Netherlands
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Grolloo, Netherlands
- Average rainfall days in December: 16.7 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in December
Grolloo, Netherlands
- Average snowfall in December: 23mm
The month with the highest snowfall is February (31mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Grolloo, Netherlands
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is February (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Grolloo, Netherlands
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 3h and 1min
The months with the most sunshine are July and August (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in December
Grolloo, Netherlands
- Average sunshine days in December: 11 days
The months with the most sunshine days are September and October (16.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Grolloo, Netherlands
- 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, November and December (UV index 2).
Average cloud cover in December
Grolloo, Netherlands
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 44).
Average visibility in December
Grolloo, Netherlands
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).
