December weather forecast
Unionport, OH

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Weather in December

December, the first month of the winter in Unionport, is also a wintry month, with an average temperature ranging between max 39°F (3.9°C) and min 28°F (-2.2°C).

Temperature

Unionport experiences a temperature shift at the start of December, with average high-temperatures adjusting from a frosty 48.9°F (9.4°C) in November to a cold 39°F (3.9°C). In Unionport, December's nights observe an average temperature dip to a freezing cold 28°F (-2.2°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Unionport, in December, during 12 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 175.9 rainfall days, and 32.95" (837mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Unionport, in December, during 12.4 snowfall days, 4.41" (112mm) of snow is typically accumulated. Throughout the year, there are 60.8 snowfall days, and 23.31" (592mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December in Unionport, sunrise is at 7:27 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:07 pm EST.

Sunshine

The average sunshine in December is 3.5h.

UV index

The month with the lowest UV index is December, 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 rays for ordinary individuals.
Note: The daily high UV index of 1 in December translates into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

During December, Unionport experiences an average high-temperature of 39°F (3.9°C) and a low-temperature of 28°F (-2.2°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 83%.

How much does it rain in December?

In Unionport, in December, during 12 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 12.4 days. Throughout December, 4.41" (112mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 21min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:27 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:07 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.5h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Unionport, OH

Average temperature in December - Unionport, OH
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Unionport, OH

Average pressure in December - Unionport, OH
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Unionport, OH

Average wind speed in December - Unionport, OH
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in December
Unionport, OH

Average humidity in December - Unionport, OH
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Unionport, OH

Average rainfall in December - Unionport, OH
  • Average rainfall in December: 2.83"

The wettest months (with the highest rainfall) are April and May (3.19").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in December
Unionport, OH

Average rainfall days in December - Unionport, OH
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in December
Unionport, OH

Average snowfall in December - Unionport, OH
  • Average snowfall in December: 4.41"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Unionport, OH

Average snowfall days in December - Unionport, OH
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Unionport, OH
  • 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Unionport, OH

Average sunshine days in December - Unionport, OH
  • Average sunshine days in December: 11.3 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in December
Unionport, OH

Average UV index in December - Unionport, 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
Unionport, OH

Average cloud cover in December - Unionport, OH
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Unionport, OH

Average visibility in December - Unionport, 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).

Unionport, Ohio, USA

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