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
December's arrival corresponds with a decrease in average high-temperatures, from November's wintry 41°F (5°C) to a freezing cold 29.1°F (-1.6°C). Throughout December, the nighttime temperature averages to 18.7°F (-7.4°C).Humidity
The average relative humidity in December in Guilford, Maine, 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, in Guilford, Maine, there are 154.3 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Guilford, during December, snow falls for 12.4 days and regularly aggregates up to 9.06" (230mm) of snow. In Guilford, during the entire year, snow falls for 69.5 days and aggregates up to 49.96" (1269mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Guilford.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, in Guilford, 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 in Guilford. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Guilford?
What is the average humidity in December in Guilford?
How many days does it rain in December in Guilford?
How much does it snow in Guilford in December?
What is the month with the shortest days in Guilford?
How many hours of daylight does Guilford have in December?
When is the sunrise / sunset in December in Guilford?
How long on average sun shines in December in Guilford?
What are the months with the lowest UV index in Guilford?
What is the UV index reading in December in Guilford?
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 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 1min
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).
Guilford, Maine, USA
Weather forecast for your location
2. Allow the app to use your location
