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 implies a gentle temperature shift, with average high-temperatures reducing from November's fresh 52°F (11.1°C) to a chilly 43°F (6.1°C). December in Lisbon generally records an average low-temperature of 31.1°F (-0.5°C).Humidity
The average relative humidity in December in Lisbon is 78%.Rainfall
In December, in Lisbon, the rain falls for 10.6 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Lisbon, during the entire year, the rain falls for 160.9 days and collects up to 33.23" (844mm) of precipitation.Snowfall
Months with snowfall in Lisbon are January through May, October through December. In Lisbon, during December, snow falls for 4.3 days and regularly aggregates up to 2.13" (54mm) of snow. Throughout the year, there are 24.7 snowfall days, and 14.88" (378mm) of snow is accumulated.Daylight
December has the shortest days of the year in Lisbon, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:55 pm EST.
Sunshine
In Lisbon, the average sunshine in December is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
Is it cold in Lisbon during December?
What is the average humidity in December in Lisbon?
How much does it rain in Lisbon in December?
How much does it snow in Lisbon in December?
What is the month with the shortest days in Lisbon?
How many hours of daylight does Lisbon have in December?
What time are sunrise and sunset in December in Lisbon?
How long on average sun shines in December in Lisbon?
When is the lowest UV index in Lisbon?
What is the UV index intensity in December in Lisbon?
Average temperature in December
Lisbon, MD
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in December
Lisbon, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Lisbon, MD
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Lisbon, MD
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, April and July (75%).
Average rainfall in December
Lisbon, MD
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (2.13").
Average rainfall days in December
Lisbon, MD
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Lisbon, MD
- Average snowfall in December: 2.13"
The month with the highest snowfall is March (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lisbon, MD
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (7.2 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, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in December
Lisbon, MD
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Lisbon, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Lisbon, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Lisbon, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
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