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 reveals a small adjustment in temperature, transitioning from an average high of a cool 52.3°F (11.3°C) in November to a chilly 43.7°F (6.5°C). Throughout the nights in December, an average low-temperature of 32.4°F (0.2°C) is noted in Holly Hill.Humidity
In December, the average relative humidity is 77%.Rainfall
In Holly Hill, Pennsylvania, in December, during 10.9 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 154.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Holly Hill, Pennsylvania, in December, during 2.8 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Holly Hill, during the entire year, snow falls for 15.9 days and aggregates up to 8.5" (216mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 5h.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
Is December cold in Holly Hill?
What is the average humidity in December in Holly Hill?
How much does it rain in Holly Hill in December?
How many days does it snow in December in Holly Hill?
What is the month with the shortest days in Holly Hill?
What is the average length of the day in December in Holly Hill?
What time are sunrise and sunset in December in Holly Hill?
How long on average sun shines in December in Holly Hill?
What is the month with the lowest UV index in Holly Hill?
What is the UV index intensity in December in Holly Hill?
Average temperature in December
Holly Hill, PA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Holly Hill, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Holly Hill, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Holly Hill, PA
- Average humidity in December: 77%
The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Holly Hill, PA
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Holly Hill, PA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Holly Hill, PA
- Average snowfall in December: 1.22"
The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Holly Hill, PA
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.8 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
Holly Hill, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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
Holly Hill, PA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Holly Hill, PA
- 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
Holly Hill, PA
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Holly Hill, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Holly Hill, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
