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
December brings a minor shift in the average high-temperature, adjusting from a fresh 54.5°F (12.5°C) in November to a chilly 46.6°F (8.1°C). Throughout December, Green Meadows witnesses a nighttime temperature average of 37.2°F (2.9°C).Humidity
In Green Meadows, Maryland, the average relative humidity in December is 75%.Rainfall
In Green Meadows, during December, the rain falls for 7.4 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Green Meadows, during the entire year, the rain falls for 132.6 days and collects up to 14.8" (376mm) of precipitation.Snowfall
January through March and December are months with snowfall in Green Meadows. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 0.12" (3mm) of snow. In Green Meadows, during the entire year, snow falls for 7.9 days and aggregates up to 0.94" (24mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:55 pm EST.
Sunshine
The average sunshine in December is 5.2h.UV index
January 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 hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December converts 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. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December in Green Meadows?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Green Meadows have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Green Meadows, MD
- Average high temperature in December: 46.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (40.8°F).
- Average low temperature in December: 37.2°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Green Meadows, 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 (29.94"Hg).
Average wind speed in December
Green Meadows, MD
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Green Meadows, MD
- Average humidity in December: 75%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in December
Green Meadows, MD
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Green Meadows, MD
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in December
Green Meadows, MD
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Green Meadows, MD
- Average snowfall days in December: 1.5 days
The months with the highest number of snowfall days are January and February (2.3 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
Green Meadows, 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 February (Average sunshine: 5h and 6min).
Average sunshine days in December
Green Meadows, MD
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in December
Green Meadows, 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
Green Meadows, MD
- Average cloud cover in December: 44
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
Green Meadows, 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).
Green Meadows, Maryland, USA
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