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 transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a fresh 50°F (10°C) in November to an icy 40.1°F (4.5°C). In December, Millsboro encounters an average low-temperature of 28.8°F (-1.8°C) during the night.Humidity
The average relative humidity in December in Millsboro is 83%.Rainfall
In Millsboro, during December, the rain falls for 5 days and regularly aggregates up to 0.51" (13mm) of precipitation. In Millsboro, during the entire year, the rain falls for 82.6 days and collects up to 6.1" (155mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Millsboro. The months with the most snowfall are February and December, with an average 0.35" (9mm) of accumulated snow.Daylight
December has the shortest days of the year in Millsboro, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in December is 3.5h.UV index
The months with the lowest UV index in Millsboro are January through March, October through 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 rays for the ordinary person.Note: An average UV index of 2 in December transforms into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Millsboro in December?
What is the average humidity in December in Millsboro?
How much does it rain in Millsboro in December?
What is the snowiest month in Millsboro?
How much does it snow in Millsboro in December?
What is the month with the shortest days in Millsboro?
What is the average length of the day in December in Millsboro?
What time are sunrise and sunset in December in Millsboro?
How many hours of sunshine does Millsboro have in December?
When is the lowest UV index in Millsboro?
How high is the UV index in December in Millsboro?
Average temperature in December
Millsboro, PA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 28.8°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 (21.2°F).
Average pressure in December
Millsboro, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Millsboro, PA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Millsboro, PA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and November (77%).
Average rainfall in December
Millsboro, PA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Millsboro, PA
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Millsboro, PA
- Average snowfall in December: 0.35"
The months with the highest snowfall are February and December (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Millsboro, PA
- Average snowfall days in December: 3.6 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millsboro, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Millsboro, PA
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in December
Millsboro, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Millsboro, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Millsboro, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Millsboro, Pennsylvania, USA
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