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
As Irlam steps into December, the average high-temperature holds at a still frosty 6.8°C (44.2°F), hinting at a minor fluctuation from the prior month. Irlam, during December nights, records a temperature marginally cooler than the daytime average, at an icy 2.8°C (37°F).Humidity
December is the most humid month in Irlam, with an average relative humidity of 89%.Rainfall
In Irlam, in December, during 16.2 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, in Irlam, United Kingdom, there are 184 rainfall days, and 389mm (15.31") of precipitation is accumulated.Snowfall
Months with snowfall are January through April and December. December is the first month it typically snows in Irlam. Throughout December, in the average 1.4 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, there are 8.8 snowfall days, and 66mm (2.6") of snow is accumulated.Daylight
December has the shortest days of the year in Irlam, United Kingdom, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:03 am and sunset at 3:54 pm. On the last day of December, in Irlam, United Kingdom, sunrise is at 8:25 am and sunset at 4:00 pm GMT.
Sunshine
The average sunshine in December is 3.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Irlam?
What is the most humid month in Irlam?
What is the average humidity in December in Irlam?
How much does it rain in Irlam in December?
When does it start snowing in Irlam?
What is the month with the shortest days in Irlam?
What is the average length of the day in December in Irlam?
When is the sunrise / sunset in December in Irlam?
How long on average sun shines in December in Irlam?
When is the lowest UV index in Irlam?
How high is the UV index in December in Irlam?
Average temperature in December
Irlam, United Kingdom
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (12°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in December
Irlam, United Kingdom
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in December
Irlam, 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 (12.3km/h).
Average humidity in December
Irlam, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Irlam, United Kingdom
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Irlam, United Kingdom
- Average rainfall days in December: 16.2 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is April (12.3 days).
Average snowfall in December
Irlam, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Irlam, United Kingdom
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (3.3 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
Irlam, 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: 3h and 4min
The months with the most sunshine are April and May (Average sunshine: 7h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in December
Irlam, United Kingdom
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (7.6 days).
Average UV index in December
Irlam, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July 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
Irlam, United Kingdom
- Average cloud cover in December: 66
The months with the most cloud cover are January and December (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility in December
Irlam, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, August, October and November (9km).
The months with the lowest visibility are January, July, September and December (8km).
