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
Chelmsford's December showcases an average high-temperature of a chilly 7.5°C (45.5°F), hardly distinct from November's 10.2°C (50.4°F). Chelmsford's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a cold 3.5°C (38.3°F).Humidity
The most humid month is December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Chelmsford is December, when the rain falls for 12.8 days and typically aggregates up to 42mm (1.65") of precipitation.Snowfall
Months with snowfall in Chelmsford are January through March, November and December. In Chelmsford, during December, snow falls for 1.8 days and regularly aggregates up to 17mm (0.67") of snow. In Chelmsford, United Kingdom, during the entire year, snow falls for 10.3 days and aggregates up to 71mm (2.8") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of December in Chelmsford, sunrise is at 7:43 am and sunset at 3:51 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 3:57 pm GMT.
Sunshine
The average sunshine in December is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Chelmsford. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What are the temperatures in Chelmsford in December?
What is the most humid month in Chelmsford?
What is the average humidity in December in Chelmsford?
What is the wettest month in Chelmsford?
How much does it rain in Chelmsford in December?
How many days does it snow in December in Chelmsford?
What is the month with the shortest days in Chelmsford?
What is the average length of the day in December in Chelmsford?
When is the sunrise / sunset in December in Chelmsford?
How long on average sun shines in December in Chelmsford?
What are the months with the lowest UV index in Chelmsford?
What is the UV index reading in December in Chelmsford?
Average temperature in December
Chelmsford, United Kingdom
- Average high temperature in December: 7.5°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in December
Chelmsford, United Kingdom
- Average pressure in December: 1014.3mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Chelmsford, United Kingdom
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is February (18.7km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in December
Chelmsford, 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 August (74%).
Average rainfall in December
Chelmsford, United Kingdom
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Chelmsford, United Kingdom
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in December
Chelmsford, United Kingdom
- Average snowfall in December: 17mm
The month with the highest snowfall is February (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Chelmsford, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (4 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
Chelmsford, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Chelmsford, United Kingdom
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Chelmsford, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Chelmsford, United Kingdom
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in December
Chelmsford, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Chelmsford, United Kingdom
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