December weather forecastKennebunkport, ME
December
Weather in December
The first month of the winter, December, is also an icy month in Kennebunkport, Maine, with an average temperature ranging between max 36.5°F (2.5°C) and min 27°F (-2.8°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 46.2°F (7.9°C) in November to a cold 36.5°F (2.5°C). Kennebunkport observes an average low-temperature of 27°F (-2.8°C) during December.Humidity
In Kennebunkport, the average relative humidity in December is 78%.Rainfall
In Kennebunkport, during December, the rain falls for 9.9 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Kennebunkport, during the entire year, the rain falls for 133.9 days and collects up to 27.44" (697mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Kennebunkport, in December, snow falls for 6.2 days, with typically accumulated 4.17" (106mm) of snow. In Kennebunkport, during the entire year, snow falls for 33.7 days and aggregates up to 18.94" (481mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 6:55 am and sunset at 4:07 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:16 pm EST.
Sunshine
February and December, with an average of 4.7h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Direct Sun exposure should be minimized especially during midday when radiation is most intense. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kennebunkport, ME
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Kennebunkport, ME
- Average pressure in December: 30.02"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Kennebunkport, ME
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Kennebunkport, ME
- Average humidity in December: 78%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Kennebunkport, ME
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in December
Kennebunkport, ME
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Kennebunkport, ME
- Average snowfall in December: 4.17"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Kennebunkport, ME
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Kennebunkport, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in December
Kennebunkport, ME
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is April (12.9 days).
Average UV index in December
Kennebunkport, 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
Kennebunkport, ME
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Kennebunkport, 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).





