December weather forecastEdgemoor, DE
December
Weather in December
December sees Edgemoor fully immersed in the winter season. The average high temperature drops to 44.1°F (6.7°C), making it one of the coldest months. Snowfall increases to an average of 0.98" (25mm) and daylight hours dwindle to their shortest in the year. Despite the cold, December's festive spirit ensures that the city remains active and lively. Overall, the weather paints a perfect picture of a mid-Atlantic winter, closing out the year on a chilly note.Temperature
The commencement of December in Edgemoor indicates a shift in the average high-temperature, receding from November's cool 53.2°F (11.8°C) to a chilly 44.1°F (6.7°C). Edgemoor's nights in December experience an average temperature drop to an icy 33.1°F (0.6°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In December, the rain falls for 10.1 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 150.6 rainfall days, and 26.46" (672mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 2.9 days. Throughout December, 0.98" (25mm) of snow is accumulated. Throughout the year, there are 16.2 snowfall days, and 6.93" (176mm) of snow is accumulated.Ocean temperature
In Edgemoor, Delaware, in December, the average water temperature is 47.8°F (8.8°C).Note: Swimming at temperatures less than 50°F (10°C) in 47.8°F (8.8°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Edgemoor.On the first day of the month, sunrise is at 7:04 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:47 pm EST.
Sunshine
In December, the average sunshine is 5.1h.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 unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Edgemoor, DE
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in December
Edgemoor, DE
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Edgemoor, DE
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Edgemoor, DE
- Average humidity in December: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Edgemoor, DE
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Edgemoor, DE
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Edgemoor, DE
- Average snowfall in December: 0.98"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Edgemoor, DE
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in December
Edgemoor, DE
- Average sea temperature in December: 47.7°F
The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in December /
Average sunshine in December
Edgemoor, DE
- Average daylight in December: 9h and 24min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Edgemoor, DE
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in December
Edgemoor, DE
- 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
Edgemoor, DE
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Edgemoor, DE
- 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).
