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
A subtle decrease in the average high-temperature marks December, falling from November's frosty 43.7°F (6.5°C) to a wintry 32.4°F (0.2°C). Hebron, in December, observes a steady average low-temperature of 22.1°F (-5.5°C).Humidity
The average relative humidity in December is 79%.Rainfall
In Hebron, in December, during 6.8 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Hebron, during the entire year, the rain falls for 119.4 days and collects up to 17.17" (436mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hebron, in December, during 7.9 snowfall days, 3.58" (91mm) of snow is typically accumulated. In Hebron, during the entire year, snow falls for 39.3 days and aggregates up to 19.37" (492mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:04 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:12 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
The months with the lowest UV index in Hebron, Maine, are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. When the Sun is at its strongest around midday, find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December in Hebron?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hebron, ME
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Hebron, ME
- Average pressure in December: 30.02"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
Hebron, ME
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Hebron, ME
- Average humidity in December: 79%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Hebron, ME
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Hebron, ME
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in December
Hebron, ME
- Average snowfall in December: 3.58"
The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hebron, ME
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hebron, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Hebron, ME
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in December
Hebron, 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
Hebron, ME
- Average cloud cover in December: 49
The months with the most cloud cover are March and April (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in December
Hebron, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, November and December (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August, September and October (5mi).
Hebron, Maine, USA
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