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
December's onset brings an average high-temperature of an icy 5.5°C (41.9°F), showing a minute difference from November's 8.1°C (46.6°F). Startforth observes a slightly reduced average nighttime temperature of 1.7°C (35.1°F) during December.Humidity
The months with the highest humidity are November and December, with an average relative humidity of 90%.Rainfall
In Startforth, in December, during 13.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 175.4 rainfall days, and 385mm (15.16") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Startforth, in December, snow falls for 1.9 days, with typically accumulated 12mm (0.47") of snow. In Startforth, during the entire year, snow falls for 14.1 days and aggregates up to 84mm (3.31") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 24min of daylight.On the first day of December, sunrise is at 8:06 am and sunset at 3:47 pm. On the last day of the month, sunrise is at 8:29 am and sunset at 3:52 pm GMT.
Sunshine
In December, the average sunshine is 4.5h.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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Startforth have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Startforth, United Kingdom
- Average high temperature in December: 5.5°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 (4.8°C).
- Average low temperature in December: 1.7°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in December
Startforth, United Kingdom
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in December
Startforth, United Kingdom
- Average wind speed in December: 18.5km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is June (12.9km/h).
Average humidity in December
Startforth, United Kingdom
- Average humidity in December: 90%
The months with the highest relative humidity are November and December (90%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in December
Startforth, United Kingdom
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Startforth, United Kingdom
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (10.2 days).
Average snowfall in December
Startforth, United Kingdom
- Average snowfall in December: 12mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Startforth, United Kingdom
- Average snowfall days in December: 1.9 days
The months with the highest number of snowfall days are January and February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Startforth, United Kingdom
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 4h and 3min
The months with the most sunshine are April, July and August (Average sunshine: 7h and 6min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in December
Startforth, United Kingdom
- Average sunshine days in December: 13 days
The month with the most sunshine days is December (13 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in December
Startforth, 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
Startforth, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in December
Startforth, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May and December (9km).
The months with the lowest visibility are June, July, August, September, October and November (8km).
