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
The arrival of December sees an average high-temperature of a still chilly 6.6°C (43.9°F), hardly diverging from November's 9.3°C (48.7°F). Nighttime temperature in Syston reflects an average dip to a cold 2.6°C (36.7°F) in December, subtly cooler than its daytime highs.Humidity
December is the most humid month in Syston, with an average relative humidity of 90%.Rainfall
In Syston, in December, it is raining for 12.4 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 150.1 rainfall days, and 270mm (10.63") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Syston. In Syston, in December, snow falls for 1.5 days, with typically accumulated 8mm (0.31") of snow. In Syston, during the entire year, snow falls for 11.6 days and aggregates up to 52mm (2.05") of snow.Daylight
December has the shortest days of the year in Syston, with an average of 7h and 42min of daylight.On the first day of the month, sunrise is at 7:53 am and sunset at 3:53 pm. On the last day of December, sunrise is at 8:15 am and sunset at 3:59 pm GMT.
Sunshine
In December, the average sunshine in Syston is 4.2h.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 radiation for the ordinary person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How cold is December in Syston?
What is the most humid month in Syston?
What is the average humidity in December in Syston?
How many days does it rain in December in Syston?
How much does it snow in Syston in December?
What is the month with the shortest days in Syston?
What is the average length of the day in December in Syston?
When is the sunrise / sunset in December in Syston?
How long on average sun shines in December in Syston?
What are the months with the lowest UV index in Syston?
How high is the UV index in December in Syston?
Average temperature in December
Syston, United Kingdom
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in December
Syston, United Kingdom
- Average pressure in December: 1012.5mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in December
Syston, United Kingdom
- Average wind speed in December: 18.4km/h
The windiest month (with the highest average wind speed) is December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in December
Syston, United Kingdom
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Syston, United Kingdom
- Average rainfall in December: 21mm
The wettest month (with the highest rainfall) is June (38mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in December
Syston, United Kingdom
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Syston, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Syston, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (4.7 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
Syston, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Syston, United Kingdom
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Syston, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (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
Syston, United Kingdom
- Average cloud cover in December: 58
The months with the most cloud cover are February and November (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 51).
Average visibility in December
Syston, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, July, August, September, October and December (9km).
The months with the lowest visibility are June and November (8km).
Syston, United Kingdom
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