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
Weather in December
Temperature
Glenavy, United Kingdom, marks the arrival of December with an average high-temperature of a still frosty 6.7°C (44.1°F), hardly different from November's 8.9°C (48°F). Glenavy's nights in December maintain a consistent average of 3°C (37.4°F), demonstrating a minimal differential from its daytime temperature.Humidity
January and December, with an average relative humidity of 90%, are the most humid months.Rainfall
In Glenavy, in December, during 11.2 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, there are 138.5 rainfall days, and 195mm (7.68") of precipitation is accumulated.Snowfall
Months with snowfall in Glenavy are January through March and December. December is the first month it typically snows in Glenavy. Throughout December, in the average 1.2 snowfall days, it receives 2mm (0.08") of snow. In Glenavy, during the entire year, snow falls for 9.7 days and aggregates up to 31mm (1.22") of snow.Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year in Glenavy.On the first day of December in Glenavy, sunrise is at 8:24 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 8:47 am and sunset at 4:09 pm GMT.
Sunshine
In Glenavy, United Kingdom, the average sunshine in December is 4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Glenavy. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
Is it cold in Glenavy during December?
What are the most humid months in Glenavy?
What is the average humidity in December in Glenavy?
How many days does it rain in December in Glenavy?
When does it start snowing in Glenavy?
What is the month with the shortest days in Glenavy?
How many hours of daylight does Glenavy have in December?
What time are sunrise and sunset in December in Glenavy?
How long on average sun shines in December in Glenavy?
What is the month with the lowest UV index in Glenavy?
How high is the UV index in December in Glenavy?
Average temperature in December
Glenavy, United Kingdom
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (2.2°C).
Average pressure in December
Glenavy, United Kingdom
- Average pressure in December: 1009.1mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in December
Glenavy, United Kingdom
- Average wind speed in December: 19.4km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in December
Glenavy, United Kingdom
- Average humidity in December: 90%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Glenavy, United Kingdom
- Average rainfall in December: 16mm
The wettest months (with the highest rainfall) are June and August (23mm).
The driest months (with the least rainfall) are January and May (11mm).
Average rainfall days in December
Glenavy, United Kingdom
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in December
Glenavy, United Kingdom
- Average snowfall in December: 2mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Glenavy, United Kingdom
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (3.4 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
Glenavy, United Kingdom
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is June (Average sunshine: 7h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Glenavy, United Kingdom
- Average sunshine days in December: 16.3 days
The months with the most sunshine days are May and December (16.3 days).
The month with the least sunshine days is August (12 days).
Average UV index in December
Glenavy, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Glenavy, United Kingdom
- Average cloud cover in December: 60
The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in December
Glenavy, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, September, October, November and December (9km).
The months with the lowest visibility are June, July and August (8km).
Glenavy, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
