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 onset of December coincides with a reduction in the average high-temperature, falling from a chilly 45.7°F (7.6°C) in November to a cold 36.5°F (2.5°C). During December, Oak Ridge records a consistent average nighttime temperature of 25.5°F (-3.6°C).Humidity
The average relative humidity in December in Oak Ridge is 86%.Rainfall
In Oak Ridge, in December, during 10.2 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Oak Ridge, Pennsylvania, during the entire year, the rain falls for 150.5 days and collects up to 22.05" (560mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Oak Ridge, in December, during 13.5 snowfall days, 3.74" (95mm) of snow is typically accumulated. In Oak Ridge, during the entire year, snow falls for 72.4 days and aggregates up to 22.28" (566mm) of snow.Daylight
The month with the shortest days in Oak Ridge, Pennsylvania, is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:59 pm EST.
Sunshine
In December, the average sunshine in Oak Ridge is 2.7h.UV index
The month with the lowest UV index in Oak Ridge is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
How cold is December in Oak Ridge?
What is the average humidity in December in Oak Ridge?
How much does it rain in Oak Ridge in December?
How many days does it snow in December in Oak Ridge?
What is the month with the shortest days in Oak Ridge?
How many hours of daylight does Oak Ridge have in December?
When is the sunrise / sunset in December in Oak Ridge?
How long on average sun shines in December in Oak Ridge?
What is the month with the lowest UV index in Oak Ridge?
How high is the UV index in December in Oak Ridge?
Average temperature in December
Oak Ridge, PA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in December
Oak Ridge, PA
- 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
Oak Ridge, PA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Oak Ridge, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Oak Ridge, PA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in December
Oak Ridge, PA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Oak Ridge, PA
- Average snowfall in December: 3.74"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Oak Ridge, PA
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (18 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 Ridge, 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: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Oak Ridge, PA
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in December
Oak Ridge, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Oak Ridge, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Oak Ridge, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).
Oak Ridge, Pennsylvania, USA
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