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
The average high-temperature in December, at a still chilly 6.6°C (43.9°F), reveals a modest deviation from November's 8.5°C (47.3°F). In Penmachno, the nighttime temperature shows a slight difference from the daytime high, averaging to a cold 3°C (37.4°F) during December.Humidity
January and December, with an average relative humidity of 91%, are the most humid months.Rainfall
December is the month with the most rainfall in Penmachno. Rain falls for 20.8 days and accumulates 103mm (4.06") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Penmachno, during December, snow falls for 3.9 days and regularly aggregates up to 46mm (1.81") of snow. In Penmachno, United Kingdom, during the entire year, snow falls for 22.5 days and aggregates up to 260mm (10.24") of snow.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year in Penmachno.On the first day of the month, sunrise is at 8:06 am and sunset at 4:02 pm. On the last day of December, in Penmachno, United Kingdom, sunrise is at 8:28 am and sunset at 4:08 pm GMT.
Sunshine
With an average of 2.5h of sunshine, December has the least sunshine of the year.UV index
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Penmachno?
What is the most humid month in Penmachno?
What is the average humidity in December in Penmachno?
What is the wettest month in Penmachno?
How much does it rain in Penmachno in December?
How many days does it snow in December in Penmachno?
What is the month with the shortest days in Penmachno?
How many hours of daylight does Penmachno have in December?
When is the sunrise / sunset in December in Penmachno?
What is the month with the least sunshine in Penmachno?
How long on average sun shines in December in Penmachno?
What is the month with the lowest UV index in Penmachno?
How high is the UV index in December in Penmachno?
Average temperature in December
Penmachno, United Kingdom
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in December
Penmachno, United Kingdom
- Average pressure in December: 1012.3mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in December
Penmachno, United Kingdom
- Average wind speed in December: 17.8km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is June (11.2km/h).
Average humidity in December
Penmachno, United Kingdom
- Average humidity in December: 91%
The months with the highest relative humidity are January and December (91%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Penmachno, United Kingdom
- Average rainfall in December: 103mm
The wettest month (with the highest rainfall) is December (103mm).
The driest months (with the least rainfall) are April and May (52mm).
Average rainfall days in December
Penmachno, United Kingdom
- Average rainfall days in December: 20.8 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in December
Penmachno, United Kingdom
- Average snowfall in December: 46mm
The month with the highest snowfall is January (70mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Penmachno, United Kingdom
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penmachno, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 2h and 3min
The months with the most sunshine are May and June (Average sunshine: 6h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Penmachno, United Kingdom
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is March (10.8 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in December
Penmachno, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
Penmachno, United Kingdom
- Average cloud cover in December: 76
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in December
Penmachno, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (8km).
The months with the lowest visibility are August and September (7km).
