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
December
Weather in December
Temperature
With December's arrival, Youngstown sees a decrease in average high-temperatures, moving from a frosty 47.8°F (8.8°C) in November to a cold 37.9°F (3.3°C). Throughout the month of December, Youngstown observes an average nighttime temperature of 26.6°F (-3°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Youngstown, during December, the rain falls for 10.9 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Youngstown, during the entire year, the rain falls for 174.2 days and collects up to 33.03" (839mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Youngstown, in December, during 14.8 snowfall days, 4.92" (125mm) of snow is typically accumulated. In Youngstown, during the entire year, snow falls for 71.4 days and aggregates up to 26.73" (679mm) of snow.Daylight
December has the shortest days of the year in Youngstown, with an average of 9h and 18min of daylight.On the first day of December in Youngstown, sunrise is at 7:29 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:04 pm EST.
Sunshine
In Youngstown, the average sunshine in December is 3.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Youngstown. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 1 during December translates into the following guidance:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. 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
Is it cold in Youngstown during December?
What is the average humidity in December in Youngstown?
How much does it rain in Youngstown in December?
How much does it snow in Youngstown in December?
What is the month with the shortest days in Youngstown?
How many hours of daylight does Youngstown have in December?
When is the sunrise / sunset in December in Youngstown?
How long on average sun shines in December in Youngstown?
What is the month with the lowest UV index in Youngstown?
What is the UV index intensity in December in Youngstown?
Average temperature in December
Youngstown, OH
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Youngstown, OH
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Youngstown, OH
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Youngstown, OH
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, July and August (77%).
Average rainfall in December
Youngstown, OH
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Youngstown, OH
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Youngstown, OH
- Average snowfall in December: 4.92"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Youngstown, OH
- Average snowfall days in December: 14.8 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
Youngstown, OH
- Average daylight in December: 9h and 2min
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: 3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Youngstown, OH
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in December
Youngstown, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Youngstown, OH
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Youngstown, OH
- 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).