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 shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a fresh 53.4°F (11.9°C) to a frosty 45.3°F (7.4°C). Green Wood Knolls's nights in December experience an average temperature drop to a wintry 32.9°F (0.5°C).Humidity
May, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Green Wood Knolls, in December, it is raining for 10.2 days, with typically 2.76" (70mm) of accumulated precipitation. In Green Wood Knolls, during the entire year, the rain falls for 160.9 days and collects up to 32.99" (838mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, in Green Wood Knolls, Maryland, it is snowing for 2.9 days. Throughout December, 1.38" (35mm) of snow is accumulated. Throughout the year, there are 17.1 snowfall days, and 10.2" (259mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:55 pm EST.
Sunshine
In Green Wood Knolls, the average sunshine in December is 5.1h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Green Wood Knolls. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the temperature in December in Green Wood Knolls?
What is the most humid month in Green Wood Knolls?
What is the average humidity in December in Green Wood Knolls?
How much does it rain in Green Wood Knolls in December?
How many days does it snow in December in Green Wood Knolls?
What is the month with the shortest days in Green Wood Knolls?
What is the average length of the day in December in Green Wood Knolls?
When are sunrise and sunset in December in Green Wood Knolls?
How many hours of sunshine does Green Wood Knolls have in December?
What are the months with the lowest UV index in Green Wood Knolls?
How high is the UV index in December in Green Wood Knolls?
Average temperature in December
Green Wood Knolls, MD
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in December
Green Wood Knolls, 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
Green Wood Knolls, MD
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Green Wood Knolls, MD
- Average humidity in December: 76%
The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Green Wood Knolls, MD
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in December
Green Wood Knolls, MD
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Green Wood Knolls, MD
- Average snowfall in December: 1.38"
The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Green Wood Knolls, MD
- Average snowfall days in December: 2.9 days
The months with the highest number of snowfall days are January and February (5.1 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
Green Wood Knolls, 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 0min).
Average sunshine days in December
Green Wood Knolls, MD
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).
Average UV index in December
Green Wood Knolls, 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, November and December (UV index 2).
Average cloud cover in December
Green Wood Knolls, 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 31).
Average visibility in December
Green Wood Knolls, 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).
Green Wood Knolls, Maryland, USA
Weather forecast for your location
2. Allow the app to use your location
