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
As November transitions into December, the average high-temperature rests at an icy 5.8°C (42.4°F), maintaining a close resemblance to the previous month. Blackley's nocturnal average in December closely mirrors its daytime temperatures, settling at a still wintry 1.8°C (35.2°F).Humidity
The most humid month in Blackley is December, with an average relative humidity of 91%.Rainfall
In December, the rain falls for 15.9 days. Throughout December, 43mm (1.69") of precipitation is accumulated. In Blackley, during the entire year, the rain falls for 205.4 days and collects up to 560mm (22.05") of precipitation.Snowfall
January through April, November and December are months with snowfall in Blackley. In December, it is snowing for 2.6 days. Throughout December, 25mm (0.98") of snow is accumulated. Throughout the year, in Blackley, there are 16.9 snowfall days, and 144mm (5.67") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:02 am and sunset at 3:53 pm. On the last day of December, in Blackley, sunrise is at 8:24 am and sunset at 3:59 pm GMT.
Sunshine
In December, the average sunshine is 3.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Blackley in December?
What is the most humid month in Blackley?
What is the average humidity in December in Blackley?
How much does it rain in Blackley in December?
How many days does it snow in December in Blackley?
What is the month with the shortest days in Blackley?
How many hours of daylight does Blackley have in December?
What time are sunrise and sunset in December in Blackley?
How many hours of sunshine does Blackley have in December?
What is the month with the lowest UV index in Blackley?
How high is the UV index in December in Blackley?
Average temperature in December
Blackley, United Kingdom
- Average high temperature in December: 5.8°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in December: 1.8°C
The months with the highest average low temperature are July and August (10.8°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).
Average pressure in December
Blackley, United Kingdom
- Average pressure in December: 1011.5mbar
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
Blackley, United Kingdom
- Average wind speed in December: 18.5km/h
The windiest month (with the highest average wind speed) is February (18.8km/h).
The calmest month (with the lowest average wind speed) is June (12.9km/h).
Average humidity in December
Blackley, United Kingdom
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in December
Blackley, United Kingdom
- Average rainfall in December: 43mm
The wettest months (with the highest rainfall) are June and July (62mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Blackley, United Kingdom
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is February (13.8 days).
Average snowfall in December
Blackley, United Kingdom
- Average snowfall in December: 25mm
The month with the highest snowfall is January (47mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Blackley, United Kingdom
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (5.3 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
Blackley, 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 5min
The month with the most sunshine is July (Average sunshine: 6h and 48min).
The month with the least sunshine is November (Average sunshine: 3h and 24min).
Average sunshine days in December
Blackley, United Kingdom
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is December (11.5 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in December
Blackley, 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
Blackley, United Kingdom
- Average cloud cover in December: 63
The month with the most cloud cover is November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in December
Blackley, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are January, February, June, July, August, September, October, November and December (8km).
Blackley, United Kingdom
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