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
In December, the average high-temperature decreases from an icy 37°F (2.8°C) in November to a subzero cold 25.2°F (-3.8°C). In Keough, December is marked by an average low-temperature of 15.1°F (-9.4°C).Humidity
In Keough, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. In Keough, during the entire year, the rain falls for 149.8 days and collects up to 32.24" (819mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Keough, it is snowing for 19.5 days. Throughout December, 12.32" (313mm) of snow is accumulated. In Keough, during the entire year, snow falls for 110.8 days and aggregates up to 76.65" (1947mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Keough, Maine.On the first day of December in Keough, sunrise is at 7:02 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:08 pm EST.
Sunshine
In December, the average sunshine in Keough is 3h.UV index
The months with the lowest UV index are February, March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Keough in December?
What is the average humidity in December in Keough?
How many days does it rain in December in Keough?
How many days does it snow in December in Keough?
What is the month with the shortest days in Keough?
What is the average length of the day in December in Keough?
When is the sunrise / sunset in December in Keough?
How many hours of sunshine does Keough have in December?
What is the month with the lowest UV index in Keough?
What is the UV index intensity in December in Keough?
Average temperature in December
Keough, ME
- Average high temperature in December: 25.2°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in December
Keough, ME
- Average pressure in December: 30.02"Hg
The month with the highest atmospheric pressure is November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Keough, ME
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Keough, ME
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Keough, ME
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in December
Keough, ME
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is August (17.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Keough, ME
- Average snowfall in December: 12.32"
The month with the highest snowfall is February (14.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Keough, ME
- Average snowfall days in December: 19.5 days
The month with the highest number of snowfall days is February (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Keough, 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: 3h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
Keough, ME
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in December
Keough, ME
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in December
Keough, ME
- Average cloud cover in December: 72
The month with the most cloud cover is February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
Keough, ME
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September and December (4mi).
Keough, Maine, USA
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