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
December denotes a minimal variation in the average high-temperature to a still chilly 6.3°C (43.3°F) from November's 8.5°C (47.3°F). Blackburn, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at a cold 2.5°C (36.5°F).Humidity
January and December, with an average relative humidity of 90%, are the most humid months in Blackburn.Rainfall
The months with the most rainfall in Blackburn are August and December, with an average 66mm (2.6") of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 2.7 days. Throughout December, 24mm (0.94") of snow is accumulated. In Blackburn, during the entire year, snow falls for 16.1 days and aggregates up to 140mm (5.51") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 30min of daylight.On the first day of the month, sunrise is at 8:04 am and sunset at 3:53 pm. On the last day of December, sunrise is at 8:27 am and sunset at 3:59 pm GMT.
Sunshine
In Blackburn, 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 estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold does it get in Blackburn in December?
What are the most humid months in Blackburn?
What is the average humidity in December in Blackburn?
What is the rainiest month in Blackburn?
How many days does it rain in December in Blackburn?
How many days does it snow in December in Blackburn?
What is the month with the shortest days in Blackburn?
What is the average length of the day in December in Blackburn?
What time are sunrise and sunset in December in Blackburn?
How many hours of sunshine does Blackburn have in December?
What are the months with the lowest UV index in Blackburn?
How high is the UV index in December in Blackburn?
Average temperature in December
Blackburn, United Kingdom
- Average high temperature in December: 6.3°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Blackburn, United Kingdom
- Average pressure in December: 1011.4mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in December
Blackburn, United Kingdom
- Average wind speed in December: 17.8km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are June and July (12.5km/h).
Average humidity in December
Blackburn, 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 (82%).
Average rainfall in December
Blackburn, United Kingdom
- Average rainfall in December: 66mm
The wettest months (with the highest rainfall) are August and December (66mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in December
Blackburn, United Kingdom
- Average rainfall days in December: 19.4 days
The month with the highest number of rainy days is August (21.4 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in December
Blackburn, United Kingdom
- Average snowfall in December: 24mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Blackburn, United Kingdom
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (5.2 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
Blackburn, United Kingdom
- Average daylight in December: 7h and 3min
The month with the longest days is June (Average daylight: 17h and 0min).
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 April (Average sunshine: 7h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in December
Blackburn, United Kingdom
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is April (12 days).
The month with the least sunshine days is August (5.4 days).
Average UV index in December
Blackburn, 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
Blackburn, United Kingdom
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in December
Blackburn, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June and October (9km).
The months with the lowest visibility are January, July, August, September, November and December (8km).
Blackburn, United Kingdom
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