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
The unfolding of December shows an average high-temperature of a still frosty 6.4°C (43.5°F), indicating a slight variance from November's 8.2°C (46.8°F). Lisnalee records a slight downturn to an average a wintry 1.8°C (35.2°F) during the nights of December.Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 92%.Rainfall
In December, the rain falls for 15.1 days. Throughout December, 31mm (1.22") of precipitation is accumulated. In Lisnalee, during the entire year, the rain falls for 191.5 days and collects up to 381mm (15") of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.1 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, there are 8.9 snowfall days, and 49mm (1.93") of snow is accumulated.Daylight
With an average of 7h and 30min of daylight, December has the shortest days of the year in Lisnalee.On the first day of the month, sunrise is at 8:25 am and sunset at 4:10 pm. On the last day of December, sunrise is at 8:48 am and sunset at 4:15 pm GMT.
Sunshine
In December, the average sunshine is 3.6h.UV index
The months with the lowest UV index in Lisnalee, Ireland, are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lisnalee, Ireland
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in December: 1.8°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).
Average pressure in December
Lisnalee, Ireland
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed in December
Lisnalee, Ireland
- Average wind speed in December: 17.4km/h
The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.9km/h).
Average humidity in December
Lisnalee, Ireland
- Average humidity in December: 92%
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall in December
Lisnalee, Ireland
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in December
Lisnalee, Ireland
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is September (13.3 days).
Average snowfall in December
Lisnalee, Ireland
- Average snowfall in December: 5mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Lisnalee, Ireland
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (3.1 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
Lisnalee, Ireland
- Average daylight in December: 7h and 3min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is June (Average sunshine: 6h and 18min).
The months with the least sunshine are January, February and October (Average sunshine: 3h and 30min).
Average sunshine days in December
Lisnalee, Ireland
- Average sunshine days in December: 12 days
The month with the most sunshine days is December (12 days).
The month with the least sunshine days is August (5.4 days).
Average UV index in December
Lisnalee, Ireland
- Average UV index in December: 2
The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Lisnalee, Ireland
- Average cloud cover in December: 64
The month with the most cloud cover is August (Cloud cover 73).
The month with the least cloud cover is April (Cloud cover 61).
Average visibility in December
Lisnalee, Ireland
- Average visibility in December: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are July, August and September (7km).
