January weather forecast
Union, OH

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Weather in January

January, like December, in Union, Ohio, is a wintry winter month, with an average temperature varying between 21.4°F (-5.9°C) and 32.5°F (0.3°C).

Temperature

With average temperatures fluctuating between a high of 32.5°F (0.3°C) and a low of 21.4°F (-5.9°C), January stands out as the coldest month.

Humidity

With an average relative humidity of 83%, January is the most humid month in Union, Ohio.

Rainfall

In Union, during January, the rain falls for 6.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Union, Ohio, during the entire year, the rain falls for 133.9 days and collects up to 14.45" (367mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 1.1" (28mm) of snow.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of January in Union, sunrise is at 7:58 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:54 pm EST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index in Union are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Union?

The coldest temperatures in Union, Ohio, occur during January, when averages reach a peak of 32.5°F (0.3°C) and a low of 21.4°F (-5.9°C).

How cold is January in Union?

The high-temperature, in January, in Union, records 32.5°F (0.3°C), while the low-temperature is 21.4°F (-5.9°C).

What is the most humid month in Union?

With an average relative humidity of 83%, January is the most humid month in Union, Ohio.

What is the average humidity in January in Union?

The average relative humidity in January is 83%.

How many days does it rain in January in Union?

In Union, during January, the rain falls for 6.8 days and regularly aggregates up to 0.87" (22mm) of precipitation.

When does it snow the most in Union?

The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 1.1" (28mm) of snow.

How many days does it snow in January in Union?

In Union, in January, during 9.2 snowfall days, 1.1" (28mm) of snow is typically accumulated.

How many hours of daylight does Union have in January?

In January, the average day length is 9h and 43min.

When is the sunrise / sunset in January in Union?

On the first day of January in Union, sunrise is at 7:58 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:54 pm EST.

What is the month with the least sunshine in Union?

With an average of 3.7h of sunshine, January has the least sunshine of the year in Union, Ohio.

How long on average sun shines in January in Union?

In Union, Ohio, the average sunshine duration in January is 3.7h.

What are the months with the lowest UV index in Union?

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

What is the UV index intensity in January in Union?

In Union, Ohio, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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 January
Union, OH

Average temperature in January - Union, OH
  • Average high temperature in January: 32.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in January
Union, OH

Average pressure in January - Union, OH
  • Average pressure in January: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Union, OH

Average wind speed in January - Union, OH
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in January
Union, OH

Average humidity in January - Union, OH
  • Average humidity in January: 83%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in January
Union, OH

Average rainfall in January - Union, OH
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (0.83").

Average rainfall days in January
Union, OH

Average rainfall days in January - Union, OH
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in January
Union, OH

Average snowfall in January - Union, OH
  • Average snowfall in January: 1.1"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Union, OH

Average snowfall days in January - Union, OH
  • Average snowfall days in January: 9.2 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Union, OH
  • Average daylight in January: 9h and 4min

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 January: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Union, OH

Average sunshine days in January - Union, OH
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in January
Union, OH

Average UV index in January - Union, 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
Union, OH

Average cloud cover in January - Union, OH
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
Union, OH

Average visibility in January - Union, OH
  • Average visibility in January: 6mi

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

Union, Ohio, USA

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