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 shift from November to December is characterized by an average high-temperature of a frosty 7.4°C (45.3°F), not significantly different from the 10.1°C (50.2°F) of November. Potters Bar's nighttime temperatures in December display a slight drop from daytime highs, averaging to a wintry 3.3°C (37.9°F).Humidity
December is the most humid month, with an average relative humidity of 89%.Rainfall
December is the month with the most rainfall in Potters Bar. Rain falls for 13.6 days and accumulates 47mm (1.85") of precipitation.Snowfall
Months with snowfall in Potters Bar are January through March, November and December. In December, it is snowing for 1.8 days. Throughout December, 17mm (0.67") of snow is accumulated. Throughout the year, there are 10.6 snowfall days, and 65mm (2.56") of snow is accumulated.Daylight
December has the shortest days of the year in Potters Bar, United Kingdom, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:45 am and sunset at 3:54 pm. On the last day of December, sunrise is at 8:07 am and sunset at 4:00 pm GMT.
Sunshine
In Potters Bar, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index in Potters Bar 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 health risk from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be vigilant! The reflective nature of snow can increase 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 Potters Bar?
What is the most humid month in Potters Bar?
What is the average humidity in December in Potters Bar?
What is the rainiest month in Potters Bar?
How much does it rain in Potters Bar in December?
How many days does it snow in December in Potters Bar?
What is the month with the shortest days in Potters Bar?
How many hours of daylight does Potters Bar have in December?
When are sunrise and sunset in December in Potters Bar?
How long on average sun shines in December in Potters Bar?
When is the lowest UV index in Potters Bar?
What is the UV index intensity in December in Potters Bar?
Average temperature in December
Potters Bar, United Kingdom
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in December: 3.3°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Potters Bar, United Kingdom
- Average pressure in December: 1014.3mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in December
Potters Bar, United Kingdom
- Average wind speed in December: 17.6km/h
The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in December
Potters Bar, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Potters Bar, United Kingdom
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Potters Bar, United Kingdom
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is March (12.2 days).
Average snowfall in December
Potters Bar, United Kingdom
- Average snowfall in December: 17mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Potters Bar, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (4.3 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
Potters Bar, 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: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 8h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Potters Bar, United Kingdom
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in December
Potters Bar, 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
Potters Bar, United Kingdom
- Average cloud cover in December: 58
The months with the most cloud cover are February and November (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 48).
Average visibility in December
Potters Bar, 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).
