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 signals a slight drop in average high-temperature, sliding from November's cool 51.3°F (10.7°C) to an icy 42.3°F (5.7°C). In Hampstead, December nights cool down to an average of 30.7°F (-0.7°C).Humidity
In Hampstead, the average relative humidity in December is 78%.Rainfall
In Hampstead, in December, it is raining for 10.7 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 160.1 rainfall days, and 29.84" (758mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Hampstead, in December, during 4.2 snowfall days, 1.69" (43mm) of snow is typically accumulated. Throughout the year, there are 22 snowfall days, and 11.85" (301mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December in Hampstead is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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 much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Hampstead?
When are sunrise and sunset in December?
How many hours of sunshine does Hampstead have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hampstead, MD
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Hampstead, 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
Hampstead, MD
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Hampstead, MD
- Average humidity in December: 78%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April, July and November (76%).
Average rainfall in December
Hampstead, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in December
Hampstead, MD
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Hampstead, MD
- Average snowfall in December: 1.69"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Hampstead, MD
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is January (6.6 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
Hampstead, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Hampstead, MD
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Hampstead, MD
- Average UV index in December: 2
The months with the highest UV index are 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
Hampstead, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Hampstead, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Hampstead, Maryland, USA
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