December weather forecast
Petworth, United Kingdom

December

Weather in December

December, the first month of the winter in Petworth, is still a chilly month, with an average temperature varying between 3.9°C (39°F) and 8.1°C (46.6°F).

Temperature

Petworth records a slight change with December's average high-temperatures adjusting to a frosty 8.1°C (46.6°F) from November's 10.5°C (50.9°F). The December average low temperature in Petworth, marginally lower than the daytime high, records at an icy 3.9°C (39°F).

Humidity

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

Rainfall

In Petworth, in December, during 13.6 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Petworth, during the entire year, the rain falls for 171.3 days and collects up to 370mm (14.57") of precipitation.

Snowfall

January through March, November and December are months with snowfall in Petworth. In December, it is snowing for 1.1 days. Throughout December, 4mm (0.16") of snow is accumulated. In Petworth, during the entire year, snow falls for 6.9 days and aggregates up to 41mm (1.61") of snow.

Daylight

The month with the shortest days in Petworth is December, with an average of 8h and 0min of daylight.
On the first day of December, sunrise is at 7:44 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:05 pm GMT.

Sunshine

In December, the average sunshine in Petworth is 4.1h.

UV index

The months with the lowest UV index in Petworth are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

What is the usual temperature for Petworth in December?
The high-temperature, in December, in Petworth, is 8.1°C (46.6°F), while the low-temperature averages to 3.9°C (39°F).
What is the most humid month in Petworth?
The most humid month is December, with an average relative humidity of 89%.
What is the average humidity in December in Petworth?
In Petworth, the average relative humidity in December is 89%.
How much does it rain in Petworth in December?
In Petworth, United Kingdom, in December, it is raining for 13.6 days, with typically 39mm (1.54") of accumulated precipitation.
How much does it snow in Petworth in December?
In Petworth, United Kingdom, in December, during 1.1 snowfall days, 4mm (0.16") of snow is typically accumulated.
What is the month with the shortest days in Petworth?
With an average of 8h and 0min of daylight, December has the shortest days of the year in Petworth.
What is the average length of the day in December in Petworth?
The average day length in December is 8h and 1min.
When are sunrise and sunset in December in Petworth?
On the first day of December in Petworth, United Kingdom, sunrise is at 7:44 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:05 pm GMT.
How long on average sun shines in December in Petworth?
In December, the average sunshine duration is 4.1h.
What is the month with the lowest UV index in Petworth?
The months with the lowest UV index in Petworth are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in December in Petworth?
In December, the average daily maximum UV index in Petworth is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
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
Petworth, United Kingdom
  • Average high temperature in December: 8.1°C

The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (7.2°C).

  • Average low temperature in December: 3.9°C

The month with the highest average low temperature is August (13.1°C).
The coldest months (with the lowest average low temperature) are January and February (2.5°C).

Average pressure in December
Petworth, United Kingdom
  • Average pressure in December: 1014.9mbar

The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in December
Petworth, United Kingdom
  • Average wind speed in December: 17.8km/h

The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).

Average humidity in December
Petworth, 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 (78%).

Average rainfall in December
Petworth, United Kingdom
  • Average rainfall in December: 39mm

The wettest months (with the highest rainfall) are June and November (41mm).
The driest month (with the least rainfall) is September (21mm).

Average rainfall days in December
Petworth, United Kingdom
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is September (11.1 days).

Average snowfall in December
Petworth, United Kingdom
  • Average snowfall in December: 4mm

The month with the highest snowfall is January (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Petworth, United Kingdom
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (2.7 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
Petworth, United Kingdom
  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in December
Petworth, United Kingdom
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is July (10 days).

Average UV index in December
Petworth, 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
Petworth, United Kingdom
  • Average cloud cover in December: 60

The month with the most cloud cover is November (Cloud cover 62).
The months with the least cloud cover are July and September (Cloud cover 48).

Average visibility in December
Petworth, 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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