December weather forecastMillville, PA
December
Weather in December
December, the first month of the winter in Millville, is also an icy month, with an average temperature ranging between max 38.3°F (3.5°C) and min 27.5°F (-2.5°C).Temperature
Millville's progression into December includes a drop in the average high-temperature, from a frosty 48.2°F (9°C) in November to a cold 38.3°F (3.5°C). Millville's temperature lowers to a mean of 27.5°F (-2.5°C) during the nights in December.Humidity
The average relative humidity in December is 81%.Rainfall
In Millville, Pennsylvania, in December, it is raining for 11.5 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 155.9 rainfall days, and 30.04" (763mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Millville, Pennsylvania, during December, snow falls for 8.4 days and regularly aggregates up to 3.31" (84mm) of snow. In Millville, during the entire year, snow falls for 42.7 days and aggregates up to 20.67" (525mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December is 4.1h.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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millville, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Millville, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Millville, PA
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Millville, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in December
Millville, PA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Millville, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Millville, PA
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millville, PA
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millville, PA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Millville, PA
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in December
Millville, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Millville, PA
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Millville, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
