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's arrival comes with a mild decrease in the average high-temperature, moving subtly from a frosty 46.8°F (8.2°C) in November to a cold 38.3°F (3.5°C). During December, the temperature is averaged to a low of 26.4°F (-3.1°C) at night.Humidity
In Hoyes Run, the average relative humidity in December is 85%.Rainfall
In Hoyes Run, in December, it is raining for 8.1 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 166.9 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Hoyes Run, in December, snow falls for 9.1 days, with typically accumulated 5.24" (133mm) of snow. In Hoyes Run, during the entire year, snow falls for 48.5 days and aggregates up to 26.69" (678mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December in Hoyes Run, sunrise is at 7:19 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:03 pm EST.
Sunshine
In December, the average sunshine is 3.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Hoyes Run?
How many hours of daylight does Hoyes Run have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December in Hoyes Run?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hoyes Run, MD
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Hoyes Run, 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
Hoyes Run, MD
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Hoyes Run, MD
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (79%).
Average rainfall in December
Hoyes Run, MD
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in December
Hoyes Run, MD
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Hoyes Run, MD
- Average snowfall in December: 5.24"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hoyes Run, MD
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hoyes Run, MD
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Hoyes Run, MD
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in December
Hoyes Run, MD
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hoyes Run, MD
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Hoyes Run, MD
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).
Hoyes Run, Maryland, USA
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