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 comes with a drop in the average high-temperature, falling from November's fresh 50.2°F (10.1°C) to an icy 41.2°F (5.1°C). Highfield-Cascade records an average low of 29.1°F (-1.6°C) throughout the nights in December.Humidity
In December, the average relative humidity is 79%.Rainfall
In Highfield-Cascade, in December, it is raining for 10.5 days, with typically 2.4" (61mm) of accumulated precipitation. In Highfield-Cascade, during the entire year, the rain falls for 158.5 days and collects up to 31.3" (795mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Highfield-Cascade, in December, during 6.1 snowfall days, 2.99" (76mm) of snow is typically accumulated. Throughout the year, there are 33 snowfall days, and 22.44" (570mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:55 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
January, February, November 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 low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Highfield-Cascade?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Highfield-Cascade, MD
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Highfield-Cascade, 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
Highfield-Cascade, MD
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Highfield-Cascade, MD
- Average humidity in December: 79%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Highfield-Cascade, MD
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Highfield-Cascade, MD
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Highfield-Cascade, MD
- Average snowfall in December: 2.99"
The month with the highest snowfall is January (6.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Highfield-Cascade, MD
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Highfield-Cascade, 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Highfield-Cascade, MD
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Highfield-Cascade, MD
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Highfield-Cascade, MD
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Highfield-Cascade, MD
- Average visibility in December: 5mi
The months with the highest visibility are April, June and July (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (5mi).
Highfield-Cascade, Maryland, USA
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