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
Sterling's transition into December involves a shift in temperature, receding from a chilly 45.5°F (7.5°C) in November to an icy 36.1°F (2.3°C). Sterling witnesses an average low-temperature of 25.3°F (-3.7°C) throughout the month of December.Humidity
The average relative humidity in December in Sterling is 84%.Rainfall
In Sterling, in December, during 10.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 154.8 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sterling. In Sterling, Pennsylvania, in December, snow falls for 13.2 days, with typically accumulated 7.13" (181mm) of snow. Throughout the year, in Sterling, there are 62.1 snowfall days, and 38.86" (987mm) of snow is accumulated.Daylight
December has the shortest days of the year in Sterling, Pennsylvania, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:42 pm EST.
Sunshine
In Sterling, the average sunshine in December is 3.9h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is it in Sterling in December?
What is the average humidity in December in Sterling?
How many days does it rain in December in Sterling?
How much does it snow in Sterling in December?
What is the month with the shortest days in Sterling?
How many hours of daylight does Sterling have in December?
When is the sunrise / sunset in December in Sterling?
How many hours of sunshine does Sterling have in December?
When is the lowest UV index in Sterling?
What is the UV index intensity in December in Sterling?
Average temperature in December
Sterling, PA
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Sterling, 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 (29.94"Hg).
Average wind speed in December
Sterling, PA
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Sterling, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Sterling, PA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Sterling, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Sterling, PA
- Average snowfall in December: 7.13"
The month with the highest snowfall is February (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sterling, PA
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sterling, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Sterling, PA
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Sterling, 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
Sterling, PA
- Average cloud cover in December: 60
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Sterling, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Sterling, Pennsylvania, USA
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