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
As Treharris steps into December, the average high-temperature holds at a still chilly 7.7°C (45.9°F), hinting at a minor fluctuation from the prior month. Consistently, Treharris reports average nighttime temperatures of 4.4°C (39.9°F) during December, a marginal step down from its daytime highs.Humidity
The months with the highest humidity are November and December, with an average relative humidity of 88%.Rainfall
In Treharris, during December, the rain falls for 17.1 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 179.9 rainfall days, and 488mm (19.21") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In December, in Treharris, it is snowing for 1.8 days. Throughout December, 16mm (0.63") of snow is accumulated. Throughout the year, there are 11.3 snowfall days, and 91mm (3.58") of snow is accumulated.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year in Treharris.On the first day of the month, sunrise is at 7:57 am and sunset at 4:06 pm. On the last day of December, sunrise is at 8:19 am and sunset at 4:13 pm GMT.
Sunshine
In December, the average sunshine in Treharris is 3.9h.UV index
The months with the lowest UV index in Treharris are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Treharris?
What is the most humid month in Treharris?
What is the average humidity in December in Treharris?
How many days does it rain in December in Treharris?
How many days does it snow in December in Treharris?
What is the month with the shortest days in Treharris?
What is the average length of the day in December in Treharris?
When are sunrise and sunset in December in Treharris?
How long on average sun shines in December in Treharris?
When is the lowest UV index in Treharris?
What is the UV index intensity in December in Treharris?
Average temperature in December
Treharris, United Kingdom
- Average high temperature in December: 7.7°C
The warmest month (with the highest average high temperature) is July (18.7°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in December: 4.4°C
The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure in December
Treharris, United Kingdom
- Average pressure in December: 1013.8mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in December
Treharris, United Kingdom
- Average wind speed in December: 20.8km/h
The windiest month (with the highest average wind speed) is February (21.2km/h).
The calmest month (with the lowest average wind speed) is June (14.3km/h).
Average humidity in December
Treharris, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Treharris, United Kingdom
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is November (66mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Treharris, United Kingdom
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is November (18.3 days).
The month with the least rainy days is September (12.7 days).
Average snowfall in December
Treharris, United Kingdom
- Average snowfall in December: 16mm
The months with the highest snowfall are January, February and November (19mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Treharris, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (3.4 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
Treharris, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in December
Treharris, United Kingdom
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is April (14.9 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in December
Treharris, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (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
Treharris, United Kingdom
- Average cloud cover in December: 61
The month with the most cloud cover is November (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 48).
Average visibility in December
Treharris, 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).
