January weather forecast
Somerville, OH

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Weather in January

January, the same as December, is another cold winter month in Somerville, Ohio, with an average temperature fluctuating between 21.6°F (-5.8°C) and 34°F (1.1°C).

Temperature

January is the coldest month, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 21.6°F (-5.8°C).

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 82%.

Rainfall

In Somerville, in January, it is raining for 9.5 days, with typically 2.4" (61mm) of accumulated precipitation. In Somerville, during the entire year, the rain falls for 169 days and collects up to 31.85" (809mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Somerville. The month with the most snowfall is January, when snow falls for 12.3 days and typically aggregates up to 3.11" (79mm) of snow.

Daylight

The average length of the day in January is 9h and 45min.
On the first day of January, sunrise is at 7:58 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:56 pm EST.

Sunshine

With an average of 3.8h of sunshine, January has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The coldest period is January, when temperatures fluctuate between an average high of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).

How cold is it in Somerville in January?

January temperatures vary between a high-temperature of 34°F (1.1°C) and a low-temperature of 21.6°F (-5.8°C).

What is the most humid month?

January, February and December, with an average relative humidity of 82%, are most humid months.

What is the average humidity in January?

In January, the average relative humidity is 82%.

How many days does it rain in January in Somerville?

In Somerville, in January, during 9.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 12.3 days and typically aggregates up to 3.11" (79mm) of snow.

How much does it snow in January?

In Somerville, Ohio, during January, snow falls for 12.3 days and regularly aggregates up to 3.11" (79mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 45min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:58 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:56 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.8h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 3.8h.

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Somerville.

What is the UV index intensity in January?

In January, the average daily maximum UV index in Somerville is 2. A UV Index 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 January
Somerville, OH

Average temperature in January - Somerville, OH
  • Average high temperature in January: 34°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in January
Somerville, OH

Average pressure in January - Somerville, OH
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Somerville, OH

Average wind speed in January - Somerville, OH
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in January
Somerville, OH

Average humidity in January - Somerville, OH
  • Average humidity in January: 82%

The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in January
Somerville, OH

Average rainfall in January - Somerville, OH
  • Average rainfall in January: 2.4"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Somerville, OH

Average rainfall days in January - Somerville, OH
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in January
Somerville, OH

Average snowfall in January - Somerville, OH
  • Average snowfall in January: 3.11"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Somerville, OH

Average snowfall days in January - Somerville, OH
  • Average snowfall days in January: 12.3 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Somerville, OH

Average daylight in January / Average sunshine in January - Somerville, OH
  • Average daylight in January: 9h and 5min

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 January: 3h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in January
Somerville, OH

Average sunshine days in January - Somerville, OH
  • Average sunshine days in January: 12 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in January
Somerville, OH

Average UV index in January - Somerville, OH
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Somerville, OH

Average cloud cover in January - Somerville, OH
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Somerville, OH

Average visibility in January - Somerville, OH
  • Average visibility in January: 5mi

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).

Somerville, Ohio, USA

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