December weather forecast
Somerset, OH

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Weather in December

December, the first month of the winter in Somerset, is also an icy month, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.1°F (4.5°C).

Temperature

In Somerset, the average high-temperature in December drops from a cool 50°F (10°C) in November to an icy 40.1°F (4.5°C). During the month of December, Somerset anticipates a mean low-temperature of 29.3°F (-1.5°C).

Humidity

The average relative humidity in December in Somerset is 82%.

Rainfall

In December, the rain falls for 12.5 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. Throughout the year, there are 175.1 rainfall days, and 34.09" (866mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Somerset, during December, snow falls for 10.3 days and regularly aggregates up to 3.07" (78mm) of snow. Throughout the year, in Somerset, there are 49.7 snowfall days, and 17.01" (432mm) 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, sunrise is at 7:31 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:14 pm EST.

Sunshine

In December, the average sunshine is 3.9h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Somerset during December?

In Somerset, 40.1°F (4.5°C) is the average high-temperature and 29.3°F (-1.5°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December in Somerset?

In December, the average relative humidity in Somerset, Ohio, is 82%.

How much does it rain in Somerset in December?

In Somerset, during December, the rain falls for 12.5 days and regularly aggregates up to 2.91" (74mm) of precipitation.

How much does it snow in Somerset in December?

In December, in Somerset, it is snowing for 10.3 days. Throughout December, 3.07" (78mm) of snow is accumulated.

What is the month with the shortest days in Somerset?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Somerset have in December?

In December, the average day length in Somerset, Ohio, is 9h and 25min.

When are sunrise and sunset in December in Somerset?

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 5:05 pm. On the last day of the month, in Somerset, Ohio, sunrise is at 7:50 am and sunset at 5:14 pm EST.

How long on average sun shines in December in Somerset?

The average sunshine duration in December in Somerset, Ohio, is 3.9h.

When is the lowest UV index in Somerset?

December is the month with the lowest UV index in Somerset, Ohio, with an average maximum UV index of 1.

What is the UV index reading in December in Somerset?

The average daily maximum UV index in December in Somerset is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Somerset, OH

Average temperature in December - Somerset, OH
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Somerset, OH

Average pressure in December - Somerset, OH
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Somerset, OH

Average wind speed in December - Somerset, OH
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in December
Somerset, OH

Average humidity in December - Somerset, OH
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are March, April and November (77%).

Average rainfall in December
Somerset, OH

Average rainfall in December - Somerset, OH
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in December
Somerset, OH

Average rainfall days in December - Somerset, OH
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and February (9.8 days).

Average snowfall in December
Somerset, OH

Average snowfall in December - Somerset, OH
  • Average snowfall in December: 3.07"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Somerset, OH

Average snowfall days in December - Somerset, OH
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Somerset, OH
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Somerset, OH

Average sunshine days in December - Somerset, OH
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.4 days).

Average UV index in December
Somerset, OH

Average UV index in December - Somerset, OH
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Somerset, OH

Average cloud cover in December - Somerset, OH
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Somerset, OH

Average visibility in December - Somerset, OH
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).

Somerset, Ohio, USA

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