December weather forecastLa Plata, MD
December
Weather in December
With the commencement of December, La Plata, Maryland, steps into the winter realm as the temperatures tumble further, with an average high of 46.9°F (8.3°C) and a low resting at approximately 34.5°F (1.4°C). It observes the return of snowfall, recording about 1.02" (26mm) over a span of about 2 days. Unlike in November, the total rainfall sees an elevation, recording around 2.28" (58mm) across roughly 11.5 days. Also, December witnesses minimal changes in relative humidity, which stands at around 77%, and average wind speed, which maintains at approximately 6.7mph (10.8km/h). Nevertheless, the month can be differentiated from the preceding month with a dip in daylight hours, summing up to about 9.5 hours.Temperature
A mild drop in La Plata's average high-temperature is observed in December, transitioning from a fresh 55°F (12.8°C) in November to a chilly 46.9°F (8.3°C). La Plata, in December, observes a steady average low-temperature of 34.5°F (1.4°C).Humidity
The average relative humidity in December is 77%.Rainfall
In La Plata, in December, during 11.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In La Plata, Maryland, during the entire year, the rain falls for 151.4 days and collects up to 29.33" (745mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In La Plata, during December, snow falls for 2 days and regularly aggregates up to 1.02" (26mm) of snow. Throughout the year, there are 13.5 snowfall days, and 7.24" (184mm) of snow is accumulated.Daylight
December has the shortest days of the year in La Plata, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:57 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 5h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into 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. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
La Plata, MD
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
La Plata, MD
- 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
La Plata, MD
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
La Plata, MD
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March and April (73%).
Average rainfall in December
La Plata, MD
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in December
La Plata, MD
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
La Plata, MD
- Average snowfall in December: 1.02"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
La Plata, MD
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
La Plata, MD
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
La Plata, MD
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in December
La Plata, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
La Plata, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
La Plata, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
