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
As November transitions into December, Mount Holly Springs sees a drop in the average high-temperature, transitioning from a fresh 50°F (10°C) to a cold 41°F (5°C). Throughout December, an average nighttime temperature of 29.5°F (-1.4°C) is experienced in Mount Holly Springs.Humidity
In Mount Holly Springs, the average relative humidity in December is 79%.Rainfall
In Mount Holly Springs, during December, the rain falls for 8.1 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 123.7 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Mount Holly Springs, in December, during 3.3 snowfall days, 0.51" (13mm) of snow is typically accumulated. In Mount Holly Springs, during the entire year, snow falls for 22.3 days and aggregates up to 4.72" (120mm) of snow.Daylight
December has the shortest days of the year in Mount Holly Springs, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Holly Springs. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Mount Holly Springs in December?
What is the average humidity in December in Mount Holly Springs?
How many days does it rain in December in Mount Holly Springs?
How much does it snow in Mount Holly Springs in December?
What is the month with the shortest days in Mount Holly Springs?
How many hours of daylight does Mount Holly Springs have in December?
When are sunrise and sunset in December in Mount Holly Springs?
How many hours of sunshine does Mount Holly Springs have in December?
When is the lowest UV index in Mount Holly Springs?
What is the UV index intensity in December in Mount Holly Springs?
Average temperature in December
Mount Holly Springs, PA
- Average high temperature in December: 41°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 (35.1°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in December
Mount Holly Springs, PA
- 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 (29.95"Hg).
Average wind speed in December
Mount Holly Springs, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in December
Mount Holly Springs, PA
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in December
Mount Holly Springs, PA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (1.34").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in December
Mount Holly Springs, PA
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Mount Holly Springs, PA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mount Holly Springs, PA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Holly Springs, 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Mount Holly Springs, PA
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in December
Mount Holly Springs, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Mount Holly Springs, PA
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Mount Holly Springs, PA
- 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).
Mount Holly Springs, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
