December weather forecastWelliversville, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Welliversville, Pennsylvania, with an average temperature varying between 27.5°F (-2.5°C) and 38.3°F (3.5°C).Temperature
The average high-temperature decreases in December, shifting from a chilly 48.2°F (9°C) in November to an icy 38.3°F (3.5°C). An average low-temperature of 27.5°F (-2.5°C) is recorded during the nights in December.Humidity
The average relative humidity in December in Welliversville is 81%.Rainfall
In Welliversville, in December, it is raining for 11.5 days, with typically 2.44" (62mm) of accumulated precipitation. In Welliversville, during the entire year, the rain falls for 155.9 days and collects up to 30.04" (763mm) of precipitation.Snowfall
Months with snowfall in Welliversville, Pennsylvania, are January through May, October through December. In Welliversville, during December, snow falls for 8.4 days and regularly aggregates up to 3.31" (84mm) of snow. Throughout the year, there are 42.7 snowfall days, and 20.67" (525mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:38 pm. On the last day of December, in Welliversville, sunrise is at 7:30 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December in Welliversville is 4.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Welliversville, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Welliversville, PA
- Average pressure in December: 30.09"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
Welliversville, PA
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Welliversville, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in December
Welliversville, PA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Welliversville, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Welliversville, PA
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Welliversville, PA
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Welliversville, PA
- Average daylight in December: 9h and 18min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Welliversville, PA
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in December
Welliversville, 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, November and December (UV index 2).
Average cloud cover in December
Welliversville, PA
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Welliversville, 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).
