December weather forecast
Youngstown, OH

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Colorful neon lights along the high bridge into downtown Toungstown, Ohio
Colorful neon lights along the high bridge into downtown Toungstown, Ohio

Weather in December

By the time December arrives, Youngstown, Ohio, becomes firmly enveloped in winter conditions, with temperatures stooping to a chilly 37.9°F. After the declining rainfall from July to November, December witnesses a slight uptick, presumably due to wintery showers. The snowfall, in harmony with the declining temperature, makes a comeback in December, setting the city for the peak winter conditions of January. With December, another seasonal cycle concludes, welcoming the advent of January, reinstating the cold wintry conditions. Celebrating the end of the year, December offers snow-filled festivities, setting a festive mood.

Temperature

The onset of December is marked by a decrease in temperature, transitioning from a frosty 47.8°F in November to an icy 37.9°F. Nightly temperatures in Youngstown, Ohio, drop to an average low of 26.6°F in December.

Humidity

In Youngstown, the average relative humidity in December is 85%.

Rainfall

In Youngstown, in December, it is raining for 10.9 days, with typically 2.44" of accumulated precipitation. In Youngstown, during the entire year, the rain falls for 174.2 days and collects up to 33.03" of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Youngstown, Ohio, during December, snow falls for 14.8 days and regularly aggregates up to 4.92" of snow. Throughout the year, there are 71.4 snowfall days, and 26.73" of snow is accumulated.

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 7:28 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:03 pm EST.

Sunshine

In December, the average sunshine in Youngstown is 3.1h.

UV index

December is the month with the lowest UV index in Youngstown, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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FAQ

How cold is it in Youngstown in December?

An average high-temperature, in December, in Youngstown, is 37.9°F and the average low-temperature is 26.6°F. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 86°F.

What is the average humidity in December in Youngstown?

In December, the average relative humidity is 85%.

How many days does it rain in December in Youngstown?

In Youngstown, Ohio, in December, it is raining for 10.9 days, with typically 2.44" of accumulated precipitation.

How much does it snow in Youngstown in December?

In Youngstown, Ohio, in December, snow falls for 14.8 days, with typically accumulated 4.92" of snow.

What is the month with the shortest days in Youngstown?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

How many hours of daylight does Youngstown have in December?

In Youngstown, the average day length in December is 9h and 16min.

When are sunrise and sunset in December in Youngstown?

On the first day of December in Youngstown, Ohio, sunrise is at 7:28 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:03 pm EST.

How many hours of sunshine does Youngstown have in December?

In Youngstown, the average sunshine duration in December is 3.1h.

When is the lowest UV index in Youngstown?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December in Youngstown?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
47.8°F
37.9°F
31.5°F
Average low temperature
33.4°F
26.6°F
18.9°F
Average pressure
30.12"Hg
30.1"Hg
30.1"Hg
Average wind speed
7.4mph
7.7mph
8.3mph
Average max. wind speed
8mph
8.3mph
8.9mph
Average wind speed gusts
11.8mph
12mph
12.9mph
Average humidity
79%
85%
86%
Average rainfall
2.24"
2.44"
2.44"
Average rainfall days
12.5
10.9
8.4
Average snowfall
3.62"
4.92"
7.09"
Average snowfall days
7.5
14.8
18.2
Average daylight
9h 5min
9h 2min
9h 4min
Average sunshine
4h 3min
3h 1min
2h 4min
Average sunshine days
13.5
10.1
8
Average UV index
2
1
2
Average cloud cover
51%
67%
73%
Average visibility
5mi
5mi
4mi

Average temperature in December
Youngstown, OH

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).

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Average pressure in December
Youngstown, OH

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).

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Average wind speed in December
Youngstown, OH

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).

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Average humidity in December
Youngstown, OH

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%).

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Average rainfall in December
Youngstown, OH

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").

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Average rainfall days in December
Youngstown, OH

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).

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Average snowfall in December
Youngstown, OH

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").

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Average snowfall days in December
Youngstown, OH

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).

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Average daylight in December /
Average sunshine in December
Youngstown, OH

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).

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Average sunshine days in December
Youngstown, OH

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).

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Average UV index in December
Youngstown, OH

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).

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Average cloud cover in December
Youngstown, OH

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).

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Average visibility in December
Youngstown, OH

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).

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Youngstown, Ohio, USA

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