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
Shippingport experiences a temperature shift at the start of December, with average high-temperatures adjusting from a frosty 48.6°F (9.2°C) in November to a cold 38.7°F (3.7°C). December nights are marked by an average temperature drop to a freezing cold 27.5°F (-2.5°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Shippingport, in December, it is raining for 10.2 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 169.1 rainfall days, and 31.46" (799mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 8.5 days. Throughout December, 3.19" (81mm) of snow is accumulated. Throughout the year, there are 45.2 snowfall days, and 15.71" (399mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:04 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
The month with the lowest UV index in Shippingport is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Shippingport have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Shippingport, PA
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Shippingport, PA
- Average pressure in December: 30.11"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
Shippingport, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Shippingport, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Shippingport, PA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is July (3.43").
The driest months (with the least rainfall) are January and November (1.93").
Average rainfall days in December
Shippingport, PA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in December
Shippingport, PA
- Average snowfall in December: 3.19"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Shippingport, PA
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shippingport, 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 18min).
- Average sunshine in December: 3h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Shippingport, PA
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (9 days).
Average UV index in December
Shippingport, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Shippingport, PA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Shippingport, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Shippingport, Pennsylvania, USA
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