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
The average high-temperature slightly decreases in December, shifting from a cool 52.9°F (11.6°C) in November to a chilly 44.1°F (6.7°C). In the month of December, Brookside witnesses a consistent average low-temperature of 32.9°F (0.5°C).Humidity
The average relative humidity in December in Brookside is 77%.Rainfall
In Brookside, in December, during 10.9 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Brookside, during the entire year, the rain falls for 168.9 days and collects up to 34.84" (885mm) of precipitation.Snowfall
Months with snowfall in Brookside are January through May, November and December. In Brookside, during December, snow falls for 2.9 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, there are 18.1 snowfall days, and 8.86" (225mm) of snow is accumulated.Daylight
The month with the shortest days in Brookside, Delaware, is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:48 pm EST.
Sunshine
In December, the average sunshine in Brookside, Delaware, is 5.1h.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 minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high 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. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Brookside during December?
What is the average humidity in December in Brookside?
How much does it rain in Brookside in December?
How many days does it snow in December in Brookside?
What is the month with the shortest days in Brookside?
What is the average length of the day in December in Brookside?
When are sunrise and sunset in December in Brookside?
How long on average sun shines in December in Brookside?
What are the months with the lowest UV index in Brookside?
How high is the UV index in December in Brookside?
Average temperature in December
Brookside, DE
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Brookside, DE
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Brookside, DE
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Brookside, DE
- Average humidity in December: 77%
The months with the highest relative humidity are May, September and October (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Brookside, DE
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (2.24").
Average rainfall days in December
Brookside, DE
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Brookside, DE
- Average snowfall in December: 1.26"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Brookside, DE
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Brookside, DE
- 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Brookside, DE
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in December
Brookside, 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
Brookside, DE
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Brookside, 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).
Brookside, Delaware, USA
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