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
Weather in December
Temperature
Letchworth Garden City ushers in December with an average high-temperature of a still frosty 7.2°C (45°F), showing a close resemblance to the previous month. Letchworth Garden City observes a minimal variance in temperature, with a consistent average low of 2.9°C (37.2°F) during the nights of December.Humidity
December is the most humid month, with an average relative humidity of 90%.Rainfall
In December, in Letchworth Garden City, the rain falls for 12.9 days. Throughout December, 34mm (1.34") of precipitation is accumulated. Throughout the year, in Letchworth Garden City, there are 160.5 rainfall days, and 325mm (12.8") of precipitation is accumulated.Snowfall
Months with snowfall in Letchworth Garden City are January through April, November and December. In Letchworth Garden City, United Kingdom, during December, snow falls for 2 days and regularly aggregates up to 19mm (0.75") of snow. Throughout the year, there are 10.3 snowfall days, and 81mm (3.19") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 48min of daylight.On the first day of December in Letchworth Garden City, sunrise is at 7:47 am and sunset at 3:53 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 3:59 pm GMT.
Sunshine
In Letchworth Garden City, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index in Letchworth Garden City, United Kingdom, are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What are the temperatures in Letchworth Garden City in December?
What is the most humid month in Letchworth Garden City?
What is the average humidity in December in Letchworth Garden City?
How much does it rain in Letchworth Garden City in December?
How many days does it snow in December in Letchworth Garden City?
What is the month with the shortest days in Letchworth Garden City?
How many hours of daylight does Letchworth Garden City have in December?
When are sunrise and sunset in December in Letchworth Garden City?
How many hours of sunshine does Letchworth Garden City have in December?
When is the lowest UV index in Letchworth Garden City?
What is the UV index intensity in December in Letchworth Garden City?
Average temperature in December
Letchworth Garden City, United Kingdom
- Average high temperature in December: 7.2°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 (6.3°C).
- Average low temperature in December: 2.9°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in December
Letchworth Garden City, United Kingdom
- Average pressure in December: 1014mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in December
Letchworth Garden City, United Kingdom
- Average wind speed in December: 18.4km/h
The windiest months (with the highest average wind speed) are February and December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in December
Letchworth Garden City, United Kingdom
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Letchworth Garden City, United Kingdom
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is June (43mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in December
Letchworth Garden City, United Kingdom
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in December
Letchworth Garden City, United Kingdom
- Average snowfall in December: 19mm
The month with the highest snowfall is February (29mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Letchworth Garden City, United Kingdom
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (3.6 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
Letchworth Garden City, 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 48min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 7h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Letchworth Garden City, United Kingdom
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is March (15.1 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in December
Letchworth Garden City, United Kingdom
- Average UV index in December: 2
The month with the highest UV index is 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
Letchworth Garden City, United Kingdom
- Average cloud cover in December: 58
The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in December
Letchworth Garden City, 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).
Letchworth Garden City, United Kingdom
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