January weather forecast
Wilmington, OH

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Weather in January

January, the same as December, is a wintry winter month in Wilmington, Ohio, with an average temperature ranging between min 22.3°F (-5.4°C) and max 34.3°F (1.3°C).

Temperature

January, having an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 22.3°F (-5.4°C), is the coldest month.

Humidity

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

Rainfall

In Wilmington, in January, during 9.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Wilmington, during the entire year, the rain falls for 169.2 days and collects up to 34.45" (875mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Wilmington, during January, snow falls for 11.8 days and regularly aggregates up to 3.39" (86mm) of snow. In Wilmington, during the entire year, snow falls for 41.5 days and aggregates up to 14.92" (379mm) of snow.

Daylight

In Wilmington, the average length of the day in January is 9h and 46min.
On the first day of the month, sunrise is at 7:55 am and sunset at 5:22 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:53 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Temperature records mark January as the coldest month, with highs averaging 34.3°F (1.3°C) and lows at 22.3°F (-5.4°C).

How cold is January?

The high-temperature, in January, in Wilmington, is 34.3°F (1.3°C), while the low-temperature averages to 22.3°F (-5.4°C).

What is the most humid month?

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

What is the average humidity in January in Wilmington?

In Wilmington, the average relative humidity in January is 82%.

How many days does it rain in January?

In Wilmington, in January, it is raining for 9.8 days, with typically 2.6" (66mm) of accumulated precipitation.

How much does it snow in Wilmington in January?

In Wilmington, in January, during 11.8 snowfall days, 3.39" (86mm) of snow is typically accumulated.

How many hours of daylight does Wilmington have in January?

In Wilmington, the average day length in January is 9h and 46min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:55 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:53 pm EST.

What is the month with the least sunshine?

With an average of 3.6h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Wilmington?

In Wilmington, the average sunshine duration in January is 3.6h.

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.

What is the UV index intensity in January?

In Wilmington, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Wilmington, OH

Average temperature in January - Wilmington, OH
  • Average high temperature in January: 34.3°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 (34.3°F).

  • Average low temperature in January: 22.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in January
Wilmington, OH

Average pressure in January - Wilmington, 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 (29.94"Hg).

Average wind speed in January
Wilmington, OH

Average wind speed in January - Wilmington, OH
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in January
Wilmington, OH

Average humidity in January - Wilmington, 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
Wilmington, OH

Average rainfall in January - Wilmington, OH
  • Average rainfall in January: 2.6"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in January
Wilmington, OH

Average rainfall days in January - Wilmington, OH
  • Average rainfall days in January: 9.8 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 days).

Average snowfall in January
Wilmington, OH

Average snowfall in January - Wilmington, OH
  • Average snowfall in January: 3.39"

The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Wilmington, OH

Average snowfall days in January - Wilmington, OH
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Wilmington, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in January
Wilmington, OH

Average sunshine days in January - Wilmington, OH
  • Average sunshine days in January: 11.3 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (8.7 days).

Average UV index in January
Wilmington, OH

Average UV index in January - Wilmington, 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
Wilmington, OH

Average cloud cover in January - Wilmington, 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
Wilmington, OH

Average visibility in January - Wilmington, 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).

Wilmington, Ohio, USA

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