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
December's arrival in Lewisburg, Pennsylvania, correlates with a reduction in the average high-temperature, down from a frosty 48°F (8.9°C) in November to a wintry 38.7°F (3.7°C). Lewisburg records a mean low-temperature of 28°F (-2.2°C) in December.Humidity
In Lewisburg, the average relative humidity in December is 81%.Rainfall
November and December are months with the least rain when the rain falls for 9.4 days and typically aggregates up to 1.18" (30mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In Lewisburg, Pennsylvania, during December, snow falls for 7 days and regularly aggregates up to 1.14" (29mm) of snow. In Lewisburg, during the entire year, snow falls for 36.6 days and aggregates up to 9.76" (248mm) of snow.Daylight
The month with the shortest days in Lewisburg is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lewisburg. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 2 in December translates into this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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?
What is the driest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Lewisburg?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Lewisburg have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Lewisburg, PA
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Lewisburg, PA
- Average pressure in December: 30.1"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
Lewisburg, PA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Lewisburg, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
Lewisburg, PA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are November and December (1.18").
Average rainfall days in December
Lewisburg, PA
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Lewisburg, PA
- Average snowfall in December: 1.14"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lewisburg, PA
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lewisburg, PA
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Lewisburg, PA
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Lewisburg, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Lewisburg, PA
- Average cloud cover in December: 56
The months with the most cloud cover are February and December (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Lewisburg, PA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Lewisburg, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location