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 average high-temperature decreases in December, shifting from a cool 53.2°F (11.8°C) in November to a frosty 44.1°F (6.7°C). Throughout December, the average low-temperature records at a freezing cold 31.1°F (-0.5°C).Humidity
October and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Elmer, in December, during 11.1 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Elmer, during the entire year, the rain falls for 161.6 days and collects up to 31.38" (797mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Elmer, during December, snow falls for 3.2 days and regularly aggregates up to 2.05" (52mm) of snow. In Elmer, during the entire year, snow falls for 18.2 days and aggregates up to 12.6" (320mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:10 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:57 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the 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. Avoiding the Sun during its peak radiation time around midday is a healthy practice. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Elmer in December?
What is the most humid month in Elmer?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December in Elmer?
What is the month with the shortest days?
How many hours of daylight does Elmer have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Elmer, MD
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Elmer, 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
Elmer, MD
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Elmer, MD
- Average humidity in December: 78%
The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Elmer, MD
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Elmer, MD
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Elmer, MD
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Elmer, MD
- Average snowfall days in December: 3.2 days
The months with the highest number of snowfall days are January and February (5.5 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
Elmer, MD
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Elmer, MD
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Elmer, 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, November and December (UV index 2).
Average cloud cover in December
Elmer, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Elmer, MD
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, November and December (6mi).
The months with the lowest visibility are January, May and October (5mi).
Elmer, Maryland, USA
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