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 start of December signals a decrease in the average high-temperature, transitioning from an icy 41.9°F (5.5°C) in November to a subzero cold 30.7°F (-0.7°C). In Brighton, December's nights observe an average temperature dip to 19.8°F (-6.8°C).Humidity
The average relative humidity in December is 82%.Rainfall
In Brighton, in December, during 10.5 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 142.6 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Brighton, in December, during 11.3 snowfall days, 7.36" (187mm) of snow is typically accumulated. Throughout the year, there are 61.8 snowfall days, and 42.99" (1092mm) of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:57 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:07 pm EST.
Sunshine
In December, the average sunshine is 4.6h.UV index
January through April, October through 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 vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 in December translates into this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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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?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Brighton, ME
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Brighton, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Brighton, ME
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Brighton, ME
- Average humidity in December: 82%
The months with the highest relative humidity are February and March (86%).
The month with the lowest relative humidity is November (77%).
Average rainfall in December
Brighton, ME
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is April (3.23").
The driest month (with the least rainfall) is July (1.38").
Average rainfall days in December
Brighton, ME
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Brighton, ME
- Average snowfall in December: 7.36"
The month with the highest snowfall is February (9.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brighton, ME
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brighton, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Brighton, ME
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Brighton, 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, April, October, November and December (UV index 2).
Average cloud cover in December
Brighton, ME
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Brighton, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).
The month with the lowest visibility is August (4mi).
Brighton, Maine, USA
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