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
December ushers in a slight temperature change, with average high-temperatures reducing from November's chilly 45°F (7.2°C) to a wintry 34.2°F (1.2°C). The average low-temperature in Lisbon during December nights is a freezing cold 23.7°F (-4.6°C).Humidity
In Lisbon, the average relative humidity in December is 78%.Rainfall
In Lisbon, in December, during 9.6 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Lisbon, during the entire year, the rain falls for 130.3 days and collects up to 27.87" (708mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Lisbon, it is snowing for 8.3 days. Throughout December, 4.88" (124mm) of snow is accumulated. In Lisbon, during the entire year, snow falls for 42.7 days and aggregates up to 25.55" (649mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:55 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:12 pm EST.
Sunshine
In December, the average sunshine is 4.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Lisbon. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Lisbon?
What is the average humidity in December in Lisbon?
How many days does it rain in December in Lisbon?
How many days does it snow in December in Lisbon?
What is the month with the shortest days in Lisbon?
What is the average length of the day in December in Lisbon?
When is the sunrise / sunset in December in Lisbon?
How many hours of sunshine does Lisbon have in December?
What are the months with the lowest UV index in Lisbon?
What is the UV index intensity in December in Lisbon?
Average temperature in December
Lisbon, ME
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Lisbon, ME
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Lisbon, ME
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Lisbon, ME
- Average humidity in December: 78%
The months with the highest relative humidity are January, February and March (82%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in December
Lisbon, ME
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Lisbon, ME
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in December
Lisbon, ME
- Average snowfall in December: 4.88"
The month with the highest snowfall is January (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lisbon, ME
- Average snowfall days in December: 8.3 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lisbon, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Lisbon, ME
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is September (18.9 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in December
Lisbon, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Lisbon, ME
- Average cloud cover in December: 52
The months with the most cloud cover are February, March and April (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in December
Lisbon, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Lisbon, Maine, USA
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