December weather forecastFox Chapel, PA
December
Weather in December
December, the first month of the winter in Fox Chapel, is still a cold month, with an average temperature varying between 39.2°F (4°C) and 28.2°F (-2.1°C).Temperature
December involves a decrease in temperature, down from a chilly 49.1°F (9.5°C) in November to an icy 39.2°F (4°C). Fox Chapel registers a consistent average low-temperature of 28.2°F (-2.1°C) during December.Humidity
The average relative humidity in December is 84%.Rainfall
In Fox Chapel, during December, the rain falls for 12.4 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 182.2 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 13 days. Throughout December, 4.76" (121mm) of snow is accumulated. Throughout the year, there are 62.9 snowfall days, and 25.51" (648mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:02 pm EST.
Sunshine
In Fox Chapel, the average sunshine in December is 3.2h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fox Chapel, PA
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Fox Chapel, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Fox Chapel, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Fox Chapel, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in December
Fox Chapel, PA
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Fox Chapel, PA
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in December
Fox Chapel, PA
- Average snowfall in December: 4.76"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fox Chapel, PA
- Average snowfall days in December: 13 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
Fox Chapel, PA
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Fox Chapel, PA
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in December
Fox Chapel, PA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Fox Chapel, PA
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Fox Chapel, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
