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
Transition into December marks a drop in the average high-temperature, moving from a frosty 47.8°F (8.8°C) in November to a wintry 38.3°F (3.5°C). Oak Hills experiences an average nighttime temperature of 27.1°F (-2.7°C) in the month of December.Humidity
The average relative humidity in December is 85%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. In Oak Hills, during the entire year, the rain falls for 162.5 days and collects up to 26.02" (661mm) of precipitation.Snowfall
Months with snowfall in Oak Hills are January through May, October through December. In Oak Hills, in December, during 12.6 snowfall days, 2.44" (62mm) of snow is typically accumulated. In Oak Hills, during the entire year, snow falls for 58.1 days and aggregates up to 14.41" (366mm) of snow.Daylight
December has the shortest days of the year in Oak Hills, Pennsylvania, with an average of 9h and 18min of daylight.On the first day of December in Oak Hills, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:02 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Oak Hills, Pennsylvania. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Oak Hills?
What is the average humidity in December in Oak Hills?
How many days does it rain in December in Oak Hills?
How much does it snow in Oak Hills in December?
What is the month with the shortest days in Oak Hills?
How many hours of daylight does Oak Hills have in December?
When is the sunrise / sunset in December in Oak Hills?
How long on average sun shines in December in Oak Hills?
What is the month with the lowest UV index in Oak Hills?
What is the UV index intensity in December in Oak Hills?
Average temperature in December
Oak Hills, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Oak Hills, PA
- 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
Oak Hills, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Oak Hills, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Oak Hills, PA
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in December
Oak Hills, PA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Oak Hills, PA
- Average snowfall in December: 2.44"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Oak Hills, PA
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Oak Hills, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Oak Hills, PA
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Oak Hills, PA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Oak Hills, PA
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Oak Hills, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Oak Hills, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location