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
With the onset of December, Grantham Hall's average high-temperature slightly adjusts, moderately receding from November's fresh 54.7°F (12.6°C) to a frosty 46.4°F (8°C). December nights in Grantham Hall cool down to an average low-temperature of 36.5°F (2.5°C).Humidity
In December, the average relative humidity in Grantham Hall, Maryland, is 75%.Rainfall
In Grantham Hall, during December, the rain falls for 8.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Grantham Hall, during the entire year, the rain falls for 132.3 days and collects up to 15.83" (402mm) of precipitation.Snowfall
Months with snowfall in Grantham Hall are January through March, November and December. In Grantham Hall, in December, snow falls for 1.6 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 9.4 snowfall days, and 1.97" (50mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:55 pm EST.
Sunshine
In December, the average sunshine 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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What are December temperatures in Grantham Hall?
What is the average humidity in December in Grantham Hall?
How many days does it rain in December in Grantham Hall?
How much does it snow in Grantham Hall in December?
What is the month with the shortest days in Grantham Hall?
What is the average length of the day in December in Grantham Hall?
What time are sunrise and sunset in December in Grantham Hall?
How long on average sun shines in December in Grantham Hall?
When is the lowest UV index in Grantham Hall?
What is the UV index intensity in December in Grantham Hall?
Average temperature in December
Grantham Hall, MD
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Grantham Hall, 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
Grantham Hall, MD
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Grantham Hall, 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
Grantham Hall, MD
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Grantham Hall, MD
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in December
Grantham Hall, MD
- Average snowfall in December: 0.28"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Grantham Hall, MD
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (2.9 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
Grantham Hall, MD
- Average daylight in December: 9h and 3min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Grantham Hall, MD
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).
Average UV index in December
Grantham Hall, 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
Grantham Hall, 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 27).
Average visibility in December
Grantham Hall, 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).
Grantham Hall, Maryland, USA
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