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 shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 48.9°F (9.4°C) to an icy 39°F (3.9°C). December is noted for a mean low-temperature of 27.7°F (-2.4°C).Humidity
In December, the average relative humidity in Harrison City is 84%.Rainfall
In Harrison City, in December, during 13.1 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Harrison City, there are 183.8 rainfall days, and 35.16" (893mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Harrison City, Pennsylvania, in December, during 13.5 snowfall days, 5.75" (146mm) of snow is typically accumulated. Throughout the year, in Harrison City, there are 65 snowfall days, and 28.98" (736mm) of snow is accumulated.Daylight
The month with the shortest days in Harrison City, Pennsylvania, is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:22 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:02 pm EST.
Sunshine
In December, the average sunshine is 3.4h.UV index
December is the month with the lowest UV index in Harrison City, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
How cold is December in Harrison City?
What is the average humidity in December in Harrison City?
How much does it rain in Harrison City in December?
How many days does it snow in December in Harrison City?
What is the month with the shortest days in Harrison City?
What is the average length of the day in December in Harrison City?
When are sunrise and sunset in December in Harrison City?
How many hours of sunshine does Harrison City have in December?
When is the lowest UV index in Harrison City?
What is the UV index reading in December in Harrison City?
Average temperature in December
Harrison City, PA
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Harrison City, 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
Harrison City, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Harrison City, PA
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Harrison City, PA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Harrison City, PA
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Harrison City, PA
- Average snowfall in December: 5.75"
The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harrison City, PA
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harrison City, 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 24min).
- Average sunshine in December: 3h and 2min
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
Harrison City, PA
- Average sunshine days in December: 9.1 days
The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in December
Harrison City, 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
Harrison City, PA
- Average cloud cover in December: 65
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
Harrison City, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Harrison City, Pennsylvania, USA
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