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
The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 45.9°F (7.7°C) in November to a wintry 35.6°F (2°C). Lebanon in December anticipates an average nighttime temperature of 25.7°F (-3.5°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Lebanon, during December, the rain falls for 8.3 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Lebanon, during the entire year, the rain falls for 118.9 days and collects up to 14.61" (371mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 6.3 days and typically aggregates up to 2.83" (72mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:57 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:17 pm EST.
Sunshine
February and December, with an average of 4.9h of sunshine, are months with the least sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in Lebanon in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lebanon have in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How many hours of sunshine does Lebanon have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Lebanon, ME
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Lebanon, ME
- Average pressure in December: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Lebanon, ME
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Lebanon, ME
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in December
Lebanon, ME
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
Lebanon, ME
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is May (12.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
Lebanon, ME
- Average snowfall in December: 2.83"
The month with the highest snowfall is December (2.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Lebanon, ME
- Average snowfall days in December: 6.3 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lebanon, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Lebanon, ME
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in December
Lebanon, ME
- Average UV index in December: 2
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Lebanon, ME
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Lebanon, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lebanon, Maine, USA
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