December weather forecastStartforth, United Kingdom

December

Weather in December

The first month of the winter, December, is also an icy month in Startforth, United Kingdom, with an average temperature varying between 1.7°C (35.1°F) and 5.5°C (41.9°F).

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.

Frequently asked questions

In December, in Startforth, the average high-temperature is 5.5°C (41.9°F), and the average low-temperature is 1.7°C (35.1°F).

November and December, with an average relative humidity of 90%, are most humid months.

The average relative humidity in December is 90%.

In Startforth, in December, during 13.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

In Startforth, in December, snow falls for 1.9 days, with typically accumulated 12mm (0.47") of snow.

December has the shortest days of the year, with an average of 7h and 24min of daylight.

The average day length in December is 7h and 23min.

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.

In Startforth, the average sunshine duration in December is 4.5h.

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

In Startforth, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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 24min

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 30min

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).