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
With the beginning of December, the average high-temperature shows a decrease, transitioning from a fresh 50.2°F (10.1°C) in November to a cold 41.2°F (5.1°C). Rouzerville experiences an average low-temperature of 29.1°F (-1.6°C) in the month of December.Humidity
In December, the average relative humidity in Rouzerville is 79%.Rainfall
In Rouzerville, in December, during 10.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Rouzerville, during the entire year, the rain falls for 158.5 days and collects up to 31.3" (795mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Rouzerville, in December, snow falls for 6.1 days, with typically accumulated 2.99" (76mm) of snow. In Rouzerville, Pennsylvania, during the entire year, snow falls for 33 days and aggregates up to 22.44" (570mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:55 pm EST.
Sunshine
In Rouzerville, Pennsylvania, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index in Rouzerville are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
Is it cold in Rouzerville during December?
What is the average humidity in December in Rouzerville?
How much does it rain in Rouzerville in December?
How many days does it snow in December in Rouzerville?
What is the month with the shortest days in Rouzerville?
How many hours of daylight does Rouzerville have in December?
When is the sunrise / sunset in December in Rouzerville?
How many hours of sunshine does Rouzerville have in December?
When is the lowest UV index in Rouzerville?
How high is the UV index in December in Rouzerville?
Average temperature in December
Rouzerville, PA
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Rouzerville, 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
Rouzerville, 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
Rouzerville, PA
- Average humidity in December: 79%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Rouzerville, PA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Rouzerville, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Rouzerville, PA
- Average snowfall in December: 2.99"
The month with the highest snowfall is January (6.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rouzerville, PA
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rouzerville, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Rouzerville, PA
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Rouzerville, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rouzerville, PA
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Rouzerville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June and July (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (5mi).
Rouzerville, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
