December weather forecastDunlevy, PA
December
Weather in December
The first month of the winter, December, is still a cold month in Dunlevy, Pennsylvania, with an average temperature fluctuating between 28.8°F (-1.8°C) and 40.1°F (4.5°C).Temperature
Onset of December comes with a temperature decline, the average high falling from a chilly 49.6°F (9.8°C) in November to a cold 40.1°F (4.5°C). Dunlevy's temperature in December lowers to a consistent average of 28.8°F (-1.8°C) during the nights.Humidity
In December, the average relative humidity is 83%.Rainfall
In Dunlevy, Pennsylvania, during December, the rain falls for 14 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Dunlevy, Pennsylvania, during the entire year, the rain falls for 191.3 days and collects up to 35.24" (895mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 12.6 days. Throughout December, 4.88" (124mm) of snow is accumulated. In Dunlevy, during the entire year, snow falls for 60.2 days and aggregates up to 25.08" (637mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:23 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:04 pm EST.
Sunshine
In December, the average sunshine is 3.6h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, PA
- Average daylight in December: 9h and 24min
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 36min
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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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
Dunlevy, 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).
