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 beginning of December brings a slight decrease in the average high-temperature, transitioning from a cool 55°F (12.8°C) in November to a chilly 47.1°F (8.4°C). Leonardtown records a mean low-temperature of 36.9°F (2.7°C) in December.Humidity
In December, the average relative humidity is 76%.Rainfall
In Leonardtown, in December, during 8.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Leonardtown, during the entire year, the rain falls for 146.1 days and collects up to 17.83" (453mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 1.8 days. Throughout December, 0.71" (18mm) of snow is accumulated. Throughout the year, there are 9 snowfall days, and 2.76" (70mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:56 pm EST.
Sunshine
In December, the average sunshine is 5.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What are December temperatures in Leonardtown?
What is the average humidity in December in Leonardtown?
How many days does it rain in December in Leonardtown?
How much does it snow in Leonardtown in December?
What is the month with the shortest days in Leonardtown?
How many hours of daylight does Leonardtown have in December?
When are sunrise and sunset in December in Leonardtown?
How long on average sun shines in December in Leonardtown?
What are the months with the lowest UV index in Leonardtown?
What is the UV index reading in December in Leonardtown?
Average temperature in December
Leonardtown, MD
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in December: 36.9°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Leonardtown, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Leonardtown, MD
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Leonardtown, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is January (73%).
Average rainfall in December
Leonardtown, MD
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are January and November (0.94").
Average rainfall days in December
Leonardtown, MD
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Leonardtown, MD
- Average snowfall in December: 0.71"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Leonardtown, MD
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Leonardtown, MD
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Leonardtown, MD
- Average sunshine days in December: 20 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is August (11.8 days).
Average UV index in December
Leonardtown, 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 and December (UV index 2).
Average cloud cover in December
Leonardtown, MD
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Leonardtown, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Leonardtown, Maryland, USA
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