January weather forecast
Williamston, OH

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Weather in January

January, the same as December, in Williamston, Ohio, is a freezing cold winter month, with an average temperature fluctuating between 18.9°F (-7.3°C) and 31.5°F (-0.3°C).

Temperature

In Williamston, the month of January is known for its lowest average temperatures, reaching a high of 31.5°F (-0.3°C) and a low of 18.9°F (-7.3°C).

Humidity

In January, the average relative humidity is 86%.

Rainfall

In Williamston, in January, it is raining for 8.4 days, with typically 2.44" (62mm) of accumulated precipitation. In Williamston, Ohio, during the entire year, the rain falls for 174.2 days and collects up to 33.03" (839mm) of precipitation.

Snowfall

Months with snowfall in Williamston are January through May, October through December. January is the month with the most snowfall in Williamston. Snow falls for 18.2 days and accumulates 7.09" (180mm) of snow.

Daylight

In Williamston, the average length of the day in January is 9h and 37min.
On the first day of January in Williamston, sunrise is at 7:47 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:37 pm EST.

Sunshine

With an average of 2.6h of sunshine, January has the least sunshine of the year.

UV index

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Temperature records mark January as the coldest month, with highs averaging 31.5°F (-0.3°C) and lows at 18.9°F (-7.3°C).

How cold is January?

In January, in Williamston, the average high-temperature is 31.5°F (-0.3°C), and the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January in Williamston?

In Williamston, the average relative humidity in January is 86%.

How many days does it rain in January?

In January, the rain falls for 8.4 days. Throughout January, 2.44" (62mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 18.2 days and typically aggregates up to 7.09" (180mm) of snow.

How much does it snow in January?

In Williamston, Ohio, during January, snow falls for 18.2 days and regularly aggregates up to 7.09" (180mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 37min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:47 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:37 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.6h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 2.6h.

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Williamston, OH

Average temperature in January - Williamston, OH
  • Average high temperature in January: 31.5°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 January: 18.9°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).

Average pressure in January
Williamston, OH

Average pressure in January - Williamston, OH
  • Average pressure in January: 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).

Average wind speed in January
Williamston, OH

Average wind speed in January - Williamston, OH
  • Average wind speed in January: 8.3mph

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).

Average humidity in January
Williamston, OH

Average humidity in January - Williamston, OH
  • Average humidity in January: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, July and August (77%).

Average rainfall in January
Williamston, OH

Average rainfall in January - Williamston, OH
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in January
Williamston, OH

Average rainfall days in January - Williamston, OH
  • Average rainfall days in January: 8.4 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).

Average snowfall in January
Williamston, OH

Average snowfall in January - Williamston, OH
  • Average snowfall in January: 7.09"

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Williamston, OH

Average snowfall days in January - Williamston, OH
  • Average snowfall days in January: 18.2 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).

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

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

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 January: 2h and 4min

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).

Average sunshine days in January
Williamston, OH

Average sunshine days in January - Williamston, OH
  • Average sunshine days in January: 8 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).

Average UV index in January
Williamston, OH

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

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 January
Williamston, OH

Average cloud cover in January - Williamston, OH
  • Average cloud cover in January: 73

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in January
Williamston, OH

Average visibility in January - Williamston, OH
  • Average visibility in January: 4mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Williamston, Ohio, USA

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