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 introduces a moderate change in Roscoe's weather, with average high-temperatures falling from November's frosty 49.6°F (9.8°C) to an icy 40.1°F (4.5°C). Roscoe anticipates an average minimum temperature of 28.8°F (-1.8°C) in the month of December.Humidity
In Roscoe, the average relative humidity in December is 83%.Rainfall
In December, the rain falls for 14 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. In Roscoe, during the entire year, the rain falls for 191.3 days and collects up to 35.24" (895mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Roscoe, in December, during 12.6 snowfall days, 4.88" (124mm) of snow is typically accumulated. Throughout the year, there are 60.2 snowfall days, and 25.08" (637mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Roscoe, sunrise is at 7:22 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:04 pm EST.
Sunshine
In Roscoe, the average sunshine in December is 3.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in 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?
How many hours of daylight does Roscoe have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Roscoe have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Roscoe, PA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Roscoe, 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
Roscoe, PA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Roscoe, PA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Roscoe, PA
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in December
Roscoe, PA
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).
Average snowfall in December
Roscoe, PA
- Average snowfall in December: 4.88"
The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roscoe, PA
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roscoe, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Roscoe, PA
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Roscoe, PA
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Roscoe, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Roscoe, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Roscoe, Pennsylvania, USA
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