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 fresh 53.8°F (12.1°C) to a frosty 45.5°F (7.5°C). December in Jacobsville, Maryland, witnesses an average low-temperature hovering around a cold 34.7°F (1.5°C).Humidity
The average relative humidity in December in Jacobsville is 75%.Rainfall
In Jacobsville, in December, it is raining for 11.4 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Jacobsville, Maryland, in December, during 2.4 snowfall days, 0.63" (16mm) of snow is typically accumulated. In Jacobsville, Maryland, during the entire year, snow falls for 14 days and aggregates up to 6.14" (156mm) of snow.Daylight
The month with the shortest days in Jacobsville 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 4:43 pm. On the last day of December, in Jacobsville, sunrise is at 7:25 am and sunset at 4:53 pm EST.
Sunshine
In Jacobsville, Maryland, the average sunshine in December is 5.2h.UV index
The months with the lowest UV index in Jacobsville are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Jacobsville in December?
What is the average humidity in December in Jacobsville?
How many days does it rain in December in Jacobsville?
How many days does it snow in December in Jacobsville?
What is the month with the shortest days in Jacobsville?
What is the average length of the day in December in Jacobsville?
When is the sunrise / sunset in December in Jacobsville?
How many hours of sunshine does Jacobsville have in December?
What are the months with the lowest UV index in Jacobsville?
What is the UV index intensity in December in Jacobsville?
Average temperature in December
Jacobsville, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Jacobsville, 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
Jacobsville, MD
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Jacobsville, MD
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in December
Jacobsville, MD
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Jacobsville, MD
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Jacobsville, MD
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Jacobsville, MD
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (4.4 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
Jacobsville, MD
- Average daylight in December: 9h and 3min
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 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
Jacobsville, MD
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Jacobsville, 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, November and December (UV index 2).
Average cloud cover in December
Jacobsville, MD
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Jacobsville, 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).
Jacobsville, Maryland, USA
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