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
Grappenhall's December average high-temperature settles at a still frosty 7.1°C (44.8°F), showing a near match with the preceding month. Grappenhall in December experiences a minor decline in temperature, with an average low of 3.2°C (37.8°F) at night.Humidity
January and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Grappenhall, in December, during 6.7 rainfall days, 14mm (0.55") of precipitation is typically accumulated. Throughout the year, in Grappenhall, there are 87.5 rainfall days, and 140mm (5.51") of precipitation is accumulated.Snowfall
Months with snowfall in Grappenhall, United Kingdom, are January through March and December. December is the first month it typically snows in Grappenhall. Throughout December, in the average 1.5 snowfall days, it receives 4mm (0.16") of snow. In Grappenhall, during the entire year, snow falls for 5.5 days and aggregates up to 18mm (0.71") of snow.Daylight
December has the shortest days of the year in Grappenhall, with an average of 7h and 36min of daylight.On the first day of December in Grappenhall, sunrise is at 8:03 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:25 am and sunset at 4:01 pm GMT.
Sunshine
The average sunshine in December in Grappenhall, United Kingdom, is 4h.UV index
The months with the lowest UV index in Grappenhall, United Kingdom, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Grappenhall?
What is the most humid month in Grappenhall?
What is the average humidity in December in Grappenhall?
How many days does it rain in December in Grappenhall?
When does it start snowing in Grappenhall?
What is the month with the shortest days in Grappenhall?
How many hours of daylight does Grappenhall have in December?
When is the sunrise / sunset in December in Grappenhall?
How long on average sun shines in December in Grappenhall?
What are the months with the lowest UV index in Grappenhall?
What is the UV index reading in December in Grappenhall?
Average temperature in December
Grappenhall, United Kingdom
- Average high temperature in December: 7.1°C
The warmest month (with the highest average high temperature) is July (19.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 3.2°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (2°C).
Average pressure in December
Grappenhall, United Kingdom
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in December
Grappenhall, United Kingdom
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is June (12.1km/h).
Average humidity in December
Grappenhall, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Grappenhall, United Kingdom
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (19mm).
The driest month (with the least rainfall) is May (6mm).
Average rainfall days in December
Grappenhall, United Kingdom
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is September (5.4 days).
Average snowfall in December
Grappenhall, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Grappenhall, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Grappenhall, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are April and May (Average sunshine: 7h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Grappenhall, United Kingdom
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is March (21.8 days).
The month with the least sunshine days is July (17 days).
Average UV index in December
Grappenhall, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Grappenhall, United Kingdom
- Average cloud cover in December: 62
The months with the most cloud cover are January and December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 50).
Average visibility in December
Grappenhall, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
