December weather forecastMillersville, WV
December
Weather in December
The first month of the winter, December, is also an icy month in Millersville, West Virginia, with an average temperature ranging between min 29.7°F (-1.3°C) and max 41.7°F (5.4°C).Temperature
Millersville's December weather shows a modest shift in high-temperatures, falling from November's fresh 50.4°F (10.2°C) to an icy 41.7°F (5.4°C). During the nights in December, Millersville observes an average low-temperature of 29.7°F (-1.3°C).Humidity
The average relative humidity in December is 83%.Rainfall
In Millersville, in December, it is raining for 13.5 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, in Millersville, there are 182.4 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Millersville, in December, snow falls for 12.2 days, with typically accumulated 5.28" (134mm) of snow. Throughout the year, there are 58.4 snowfall days, and 29.09" (739mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of December, in Millersville, West Virginia, sunrise is at 7:40 am and sunset at 5:07 pm EST.
Sunshine
The average sunshine in December is 3.7h.UV index
January, February, November and 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 the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millersville, WV
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Millersville, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Millersville, WV
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Millersville, WV
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Millersville, WV
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Millersville, WV
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (10.8 days).
Average snowfall in December
Millersville, WV
- Average snowfall in December: 5.28"
The month with the highest snowfall is January (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millersville, WV
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millersville, WV
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Millersville, WV
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Millersville, WV
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Millersville, WV
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Millersville, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
