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
Hillcrest Heights's December weather shows a modest shift in high-temperatures, falling from November's fresh 53.4°F (11.9°C) to a chilly 45.3°F (7.4°C). Throughout the month of December, the average temperature dips to a cold 33.3°F (0.7°C) at night.Humidity
In Hillcrest Heights, the average relative humidity in December is 76%.Rainfall
In Hillcrest Heights, in December, it is raining for 10.3 days, with typically 2.2" (56mm) of accumulated precipitation. In Hillcrest Heights, during the entire year, the rain falls for 158.5 days and collects up to 30.12" (765mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Hillcrest Heights. In December, it is snowing for 2.2 days. Throughout December, 0.75" (19mm) of snow is accumulated. Throughout the year, there are 13.6 snowfall days, and 6.54" (166mm) 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 December in Hillcrest Heights, Maryland, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in December in Hillcrest Heights, Maryland, is 5.2h.UV index
The months with the lowest UV index in Hillcrest Heights are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What are the temperatures in Hillcrest Heights in December?
What is the average humidity in December in Hillcrest Heights?
How much does it rain in Hillcrest Heights in December?
How many days does it snow in December in Hillcrest Heights?
What is the month with the shortest days in Hillcrest Heights?
What is the average length of the day in December in Hillcrest Heights?
What time are sunrise and sunset in December in Hillcrest Heights?
How many hours of sunshine does Hillcrest Heights have in December?
What is the month with the lowest UV index in Hillcrest Heights?
What is the UV index reading in December in Hillcrest Heights?
Average temperature in December
Hillcrest Heights, MD
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Hillcrest Heights, 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 (29.94"Hg).
Average wind speed in December
Hillcrest Heights, MD
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Hillcrest Heights, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Hillcrest Heights, MD
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in December
Hillcrest Heights, MD
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Hillcrest Heights, MD
- Average snowfall in December: 0.75"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Hillcrest Heights, MD
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (4.3 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
Hillcrest Heights, 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
Hillcrest Heights, MD
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (19.8 days).
The months with the least sunshine days are May and July (10.9 days).
Average UV index in December
Hillcrest Heights, 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, February, November and December (UV index 2).
Average cloud cover in December
Hillcrest Heights, 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 29).
Average visibility in December
Hillcrest Heights, 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).
Hillcrest Heights, Maryland, USA
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