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 sea temperature 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
With December's onset, the weather shows a temperature decrease, transitioning from a frosty 46°F (7.8°C) in November to a wintry 36.3°F (2.4°C). December's average low-temperature is a freezing cold 29.3°F (-1.5°C), reflecting a minor difference from the day's peak temperatures.Humidity
In Youngstown, the average relative humidity in December is 80%.Rainfall
In Youngstown, in December, it is raining for 11.8 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 177.2 rainfall days, and 30.94" (786mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Youngstown, New York, in December, during 12.5 snowfall days, 2.99" (76mm) of snow is typically accumulated. In Youngstown, New York, during the entire year, snow falls for 58.5 days and aggregates up to 15.87" (403mm) of snow.Ocean temperature
In Youngstown, the average seawater temperature in December is 40.8°F (4.9°C).Note: In swimming, this condition is considered life-threatening and perilous. The painful sensation of cold water leads to immediate hyperventilation. Utilizing a specialized swimsuit is critical to reduce thermal injury.
Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:50 pm EST.
Sunshine
In Youngstown, the average sunshine in December is 3.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 1 in December transforms into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Youngstown in December?
What is the average humidity in December in Youngstown?
How many days does it rain in December in Youngstown?
How many days does it snow in December in Youngstown?
How cold is the water in December in Youngstown?
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?
When is the lowest UV index in Youngstown?
What is the UV index intensity in December in Youngstown?
Average temperature in December
Youngstown, NY
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Youngstown, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Youngstown, NY
- Average wind speed in December: 12.2mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Youngstown, NY
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Youngstown, NY
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is July (3.15").
The driest months (with the least rainfall) are September and November (2.17").
Average rainfall days in December
Youngstown, NY
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is October (18.9 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Youngstown, NY
- Average snowfall in December: 2.99"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Youngstown, NY
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Youngstown, NY
- Average sea temperature in December: 40.9°F
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (35°F).
Average daylight in December /
Average sunshine in December
Youngstown, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Youngstown, NY
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is September (13 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in December
Youngstown, NY
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Youngstown, NY
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Youngstown, NY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Youngstown, New York, USA
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