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
The onset of December results in a decrease in the average high-temperature, receding from a chilly 48.2°F (9°C) in November to a cold 38.7°F (3.7°C). McConnellstown experiences a mean low-temperature of 27.5°F (-2.5°C) during December.Humidity
The average relative humidity in December is 81%.Rainfall
In McConnellstown, in December, during 8.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In McConnellstown, during the entire year, the rain falls for 128.8 days and collects up to 16.34" (415mm) of precipitation.Snowfall
Months with snowfall in McConnellstown are January through April, October through December. In McConnellstown, in December, during 4.8 snowfall days, 1.38" (35mm) of snow is typically accumulated. In McConnellstown, during the entire year, snow falls for 29.1 days and aggregates up to 10.08" (256mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:55 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does McConnellstown have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
McConnellstown, PA
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.1°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 (20.1°F).
Average pressure in December
McConnellstown, PA
- Average pressure in December: 30.1"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
McConnellstown, 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 (4.5mph).
Average humidity in December
McConnellstown, PA
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
McConnellstown, PA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in December
McConnellstown, PA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
McConnellstown, PA
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
McConnellstown, PA
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
McConnellstown, PA
- Average daylight in December: 9h and 2min
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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
McConnellstown, PA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
McConnellstown, PA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
McConnellstown, PA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
McConnellstown, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
McConnellstown, Pennsylvania, USA
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