December weather forecastGuilford, ME
December
Weather in December
December, the first month of the winter in Guilford, is also a subzero cold month, with an average temperature varying between 18.7°F (-7.4°C) and 29.1°F (-1.6°C).Temperature
As December begins, there is a decrease in the average high-temperature, falling from an icy 41°F (5°C) in November to a subzero cold 29.1°F (-1.6°C). Throughout the month of December, Guilford witnesses an average low-temperature of 18.7°F (-7.4°C).Humidity
In Guilford, Maine, the average relative humidity in December is 83%.Rainfall
In Guilford, during December, the rain falls for 10.8 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 154.3 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Guilford, during December, snow falls for 12.4 days and regularly aggregates up to 9.06" (230mm) of snow. Throughout the year, there are 69.5 snowfall days, and 49.96" (1269mm) of snow is accumulated.Daylight
The month with the shortest days in Guilford is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 3:56 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:05 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
January through March, 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 average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guilford, ME
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in December: 18.7°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 (10.8°F).
Average pressure in December
Guilford, ME
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Guilford, 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 (5.2mph).
Average humidity in December
Guilford, ME
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Guilford, ME
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is July (1.89").
Average rainfall days in December
Guilford, ME
- Average rainfall days in December: 10.8 days
The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Guilford, ME
- Average snowfall in December: 9.06"
The month with the highest snowfall is February (11.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Guilford, ME
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Guilford, ME
- Average daylight in December: 8h and 48min
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 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Guilford, ME
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Guilford, 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
Guilford, ME
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in December
Guilford, ME
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
