December weather forecast
Old Windsor, United Kingdom

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Weather in December

December, the first month of the winter in Old Windsor, is still a chilly month, with an average temperature fluctuating between 7.7°C (45.9°F) and 3.1°C (37.6°F).

Temperature

Old Windsor registers an average high-temperature of a chilly 7.7°C (45.9°F) at the commencement of December, closely related to the preceding month. Old Windsor welcomes an average low temperature of 3.1°C (37.6°F) in December, a gentle shift from the day's high.

Humidity

The most humid month is December, with an average relative humidity of 89%.

Rainfall

In December, in Old Windsor, United Kingdom, the rain falls for 12 days. Throughout December, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 149.7 rainfall days, and 270mm (10.63") of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Old Windsor. December is the first month it typically snows in Old Windsor. Throughout December, in the average 1.1 snowfall days, it receives 4mm (0.16") of snow. In Old Windsor, during the entire year, snow falls for 6 days and aggregates up to 27mm (1.06") 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, sunrise is at 7:46 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 4:03 pm GMT.

Sunshine

In Old Windsor, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What are the temperatures in Old Windsor in December?

The high-temperature, in December, in Old Windsor, records 7.7°C (45.9°F), while the low-temperature is 3.1°C (37.6°F).

What is the most humid month in Old Windsor?

With an average relative humidity of 89%, December is the most humid month in Old Windsor.

What is the average humidity in December in Old Windsor?

In Old Windsor, the average relative humidity in December is 89%.

How much does it rain in Old Windsor in December?

In December, in Old Windsor, the rain falls for 12 days. Throughout December, 27mm (1.06") of precipitation is accumulated.

When does it start snowing in Old Windsor?

December is the first month it typically snows in Old Windsor. Throughout December, in the average 1.1 snowfall days, it receives 4mm (0.16") of snow.

What is the month with the shortest days in Old Windsor?

The month with the shortest days in Old Windsor is December, with an average of 7h and 54min of daylight.

How many hours of daylight does Old Windsor have in December?

The average day length in December in Old Windsor, United Kingdom, is 7h and 56min.

What time are sunrise and sunset in December in Old Windsor?

On the first day of December in Old Windsor, United Kingdom, sunrise is at 7:46 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 4:03 pm GMT.

How long on average sun shines in December in Old Windsor?

In Old Windsor, United Kingdom, the average sunshine duration in December is 4.3h.

What is the month with the lowest UV index in Old Windsor?

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

How high is the UV index in December in Old Windsor?

In Old Windsor, United Kingdom, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Old Windsor, United Kingdom

Average temperature in December - Old Windsor, United Kingdom
  • Average high temperature in December: 7.7°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 (6.6°C).

  • Average low temperature in December: 3.1°C

The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).

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Average pressure in December
Old Windsor, United Kingdom

Average pressure in December - Old Windsor, United Kingdom
  • Average pressure in December: 1014.4mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).

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Average wind speed in December
Old Windsor, United Kingdom

Average wind speed in December - Old Windsor, United Kingdom
  • Average wind speed in December: 17.5km/h

The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest months (with the lowest average wind speed) are July and September (12.8km/h).

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Average humidity in December
Old Windsor, United Kingdom

Average humidity in December - Old Windsor, United Kingdom
  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (76%).

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Average rainfall in December
Old Windsor, United Kingdom

Average rainfall in December - Old Windsor, United Kingdom
  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is June (34mm).
The driest month (with the least rainfall) is April (16mm).

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Average rainfall days in December
Old Windsor, United Kingdom

Average rainfall days in December - Old Windsor, United Kingdom
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is September (9.9 days).

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Average snowfall in December
Old Windsor, United Kingdom

Average snowfall in December - Old Windsor, United Kingdom
  • Average snowfall in December: 4mm

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in December
Old Windsor, United Kingdom

Average snowfall days in December - Old Windsor, United Kingdom
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Old Windsor, United Kingdom

Average daylight in December / Average sunshine in December - Old Windsor, United Kingdom
  • Average daylight in December: 7h and 5min

The month with the longest days is June (Average daylight: 16h and 30min).
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 July (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

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Average sunshine days in December
Old Windsor, United Kingdom

Average sunshine days in December - Old Windsor, United Kingdom
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in December
Old Windsor, United Kingdom

Average UV index in December - Old Windsor, United Kingdom
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Old Windsor, United Kingdom

Average cloud cover in December - Old Windsor, United Kingdom
  • Average cloud cover in December: 58

The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 49).

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Average visibility in December
Old Windsor, United Kingdom

Average visibility in December - Old Windsor, United Kingdom
  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).

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Old Windsor, United Kingdom

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