December weather forecastKillowen, United Kingdom

December

Weather in December

December, the first month of the winter in Killowen, is also a frosty month, with an average temperature fluctuating between 7.2°C (45°F) and 4°C (39.2°F).

Temperature

The onset of December brings an average high-temperature of a still frosty 7.2°C (45°F), nearly matching the November temperature. Killowen marks an average drop to an icy 4°C (39.2°F) during nighttime in December, following the high of the day.

Humidity

December is the most humid month in Killowen, with an average relative humidity of 88%.

Rainfall

In Killowen, United Kingdom, during December, the rain falls for 14.8 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, in Killowen, there are 199.5 rainfall days, and 567mm (22.32") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 2.3 days. Throughout December, 13mm (0.51") of snow is accumulated. Throughout the year, there are 13.2 snowfall days, and 128mm (5.04") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 7h and 30min of daylight.
On the first day of December in Killowen, sunrise is at 8:21 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 8:43 am and sunset at 4:11 pm GMT.

Sunshine

In Killowen, United Kingdom, the average sunshine in December is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Killowen. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, the average high-temperature and low-temperature are 7.2°C (45°F) and 4°C (39.2°F) respectively.

The most humid month is December, with an average relative humidity of 88%.

In December, the average relative humidity is 88%.

In Killowen, in December, it is raining for 14.8 days, with typically 43mm (1.69") of accumulated precipitation.

In Killowen, in December, during 2.3 snowfall days, 13mm (0.51") of snow is typically accumulated.

With an average of 7h and 30min of daylight, December has the shortest days of the year in Killowen, United Kingdom.

In December, the average day length is 7h and 28min.

In December, on the first day of the month, sunrise is at 8:21 am and sunset at 4:06 pm. On the last day of the month, in Killowen, sunrise is at 8:43 am and sunset at 4:11 pm GMT.

The average sunshine duration in December in Killowen, United Kingdom, is 4.2h.

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

The average daily maximum UV index in December in Killowen is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

9°C

7.2°C

6.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

22.5km/h

24.1km/h

23.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.9

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Killowen, United Kingdom

Average high temperature in December: 7.2°C

The warmest months (with the highest average high temperature) are July and August (16.4°C).
The month with the lowest average high temperature is January (6.7°C).

Average low temperature in December: 4°C

The month with the highest average low temperature is August (11.5°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).

Average pressure in December
Killowen, United Kingdom

Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.6mbar).

Average wind speed in December
Killowen, United Kingdom

Average wind speed in December: 22.7km/h

The windiest month (with the highest average wind speed) is January (22.8km/h).
The calmest months (with the lowest average wind speed) are June and July (14.2km/h).

Average humidity in December
Killowen, United Kingdom

Average humidity in December: 88%

The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are March, April and May (84%).

Average rainfall in December
Killowen, United Kingdom

Average rainfall in December: 43mm

The wettest month (with the highest rainfall) is August (66mm).
The driest months (with the least rainfall) are January and April (35mm).

Average rainfall days in December
Killowen, United Kingdom

Average rainfall days in December: 14.8 days

The month with the highest number of rainy days is August (21.6 days).
The month with the least rainy days is February (13.5 days).

Average snowfall in December
Killowen, United Kingdom

Average snowfall in December: 13mm

The month with the highest snowfall is February (40mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Killowen, United Kingdom

Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is February (3.7 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
Killowen, United Kingdom

Average daylight in December: 7h and 30min

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).

Average sunshine in December: 4h and 12min

The month with the most sunshine is June (Average sunshine: 7h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in December
Killowen, United Kingdom

Average sunshine days in December: 11.9 days

The months with the most sunshine days are January and November (12 days).
The month with the least sunshine days is August (6.1 days).

Average UV index in December
Killowen, United Kingdom

Average UV index in December: 2

The months with the highest UV index are May, June, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Killowen, United Kingdom

Average cloud cover in December: 57

The months with the most cloud cover are January and February (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 52).

Average visibility in December
Killowen, United Kingdom

Average visibility in December: 9km

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