December weather forecastLewis Corner, PA
December
Weather in December
December, the first month of the winter in Lewis Corner, is still a cold month, with an average temperature ranging between max 33.4°F (0.8°C) and min 23.7°F (-4.6°C).Temperature
With December's onset, the weather shows a temperature decrease, transitioning from a chilly 43.3°F (6.3°C) in November to an icy 33.4°F (0.8°C). Lewis Corner records an average temperature drop to a freezing cold 23.7°F (-4.6°C) in December.Humidity
In Lewis Corner, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 10.4 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. In Lewis Corner, during the entire year, the rain falls for 168.4 days and collects up to 31.57" (802mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lewis Corner, in December, snow falls for 19.6 days, with typically accumulated 9.96" (253mm) of snow. In Lewis Corner, during the entire year, snow falls for 98.2 days and aggregates up to 52.05" (1322mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:50 pm EST.
Sunshine
In Lewis Corner, the average sunshine in December is 2.7h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Boost your sun resistance with garments that are densely woven yet spacious. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lewis Corner, PA
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in December
Lewis Corner, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Lewis Corner, PA
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Lewis Corner, PA
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Lewis Corner, PA
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is August (2.09").
Average rainfall days in December
Lewis Corner, PA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Lewis Corner, PA
- Average snowfall in December: 9.96"
The month with the highest snowfall is February (12.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lewis Corner, PA
- Average snowfall days in December: 19.6 days
The month with the highest number of snowfall days is January (21.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lewis Corner, PA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Lewis Corner, PA
- Average sunshine days in December: 5.9 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in December
Lewis Corner, PA
- Average UV index in December: 1
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 and December (UV index 1).
Average cloud cover in December
Lewis Corner, PA
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Lewis Corner, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
