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
Sproul in December undergoes a mild reduction in the average high-temperature, shifting from November's chilly 46.8°F (8.2°C) to a cold 37.2°F (2.9°C). During December, the nighttime temperature averages of 26.8°F (-2.9°C).Humidity
In Sproul, the average relative humidity in December is 83%.Rainfall
In Sproul, in December, it is raining for 9.7 days, with typically 2.52" (64mm) of accumulated precipitation. In Sproul, during the entire year, the rain falls for 162.4 days and collects up to 30" (762mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Sproul, during December, snow falls for 8.6 days and regularly aggregates up to 3.7" (94mm) of snow. In Sproul, during the entire year, snow falls for 47.1 days and aggregates up to 24.8" (630mm) of snow.Daylight
The month with the shortest days in Sproul is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:57 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much 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 long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sproul, PA
- Average high temperature in December: 37.2°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 (31.5°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Sproul, 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
Sproul, PA
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Sproul, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Sproul, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in December
Sproul, PA
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Sproul, PA
- Average snowfall in December: 3.7"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sproul, PA
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sproul, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Sproul, PA
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Sproul, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Sproul, PA
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Sproul, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Sproul, Pennsylvania, USA
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