January weather forecast
Martinsville, OH

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Weather in January

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

Temperature

In Martinsville, the lowest average temperatures are observed in January, with a high of 34.3°F (1.3°C) and a low of 22.3°F (-5.4°C).

Humidity

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

Rainfall

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

Snowfall

Months with snowfall are January through May, October through December. In Martinsville, in January, during 11.8 snowfall days, 3.39" (86mm) of snow is typically accumulated. Throughout the year, there are 41.5 snowfall days, and 14.92" (379mm) of snow is accumulated.

Daylight

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

Sunshine

The month with the least sunshine in Martinsville 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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Martinsville?

In Martinsville, January records the average lowest temperatures, peaking at 34.3°F (1.3°C) and reaching a low of 22.3°F (-5.4°C).

How cold is January in Martinsville?

An average high-temperature, in January, in Martinsville, is 34.3°F (1.3°C) and the average low-temperature is 22.3°F (-5.4°C).

What are the most humid months in Martinsville?

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

What is the average humidity in January in Martinsville?

In January, the average relative humidity is 82%.

How many days does it rain in January in Martinsville?

In Martinsville, during January, the rain falls for 9.8 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How much does it snow in Martinsville in January?

In January, in Martinsville, Ohio, it is snowing for 11.8 days. Throughout January, 3.39" (86mm) of snow is accumulated.

What is the average length of the day in January in Martinsville?

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

When are sunrise and sunset in January in Martinsville?

In January, on the first day of the month, sunrise is at 7:54 am and sunset at 5:22 pm. On the last day of the month, in Martinsville, Ohio, sunrise is at 7:43 am and sunset at 5:54 pm EST.

What is the month with the least sunshine in Martinsville?

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

How long on average sun shines in January in Martinsville?

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

When is the lowest UV index in Martinsville?

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

What is the UV index intensity in January in Martinsville?

In Martinsville, Ohio, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Martinsville, OH

Average temperature in January - Martinsville, 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).

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Average pressure in January
Martinsville, OH

Average pressure in January - Martinsville, 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).

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Average wind speed in January
Martinsville, OH

Average wind speed in January - Martinsville, 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).

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Average humidity in January
Martinsville, OH

Average humidity in January - Martinsville, 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%).

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Average rainfall in January
Martinsville, OH

Average rainfall in January - Martinsville, 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").

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Average rainfall days in January
Martinsville, OH

Average rainfall days in January - Martinsville, 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).

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Average snowfall in January
Martinsville, OH

Average snowfall in January - Martinsville, 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").

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Average snowfall days in January
Martinsville, OH

Average snowfall days in January - Martinsville, 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).

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

Average daylight in January / Average sunshine in January - Martinsville, 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 30min).

  • 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).

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Average sunshine days in January
Martinsville, OH

Average sunshine days in January - Martinsville, 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).

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Average UV index in January
Martinsville, OH

Average UV index in January - Martinsville, 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).

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Average cloud cover in January
Martinsville, OH

Average cloud cover in January - Martinsville, 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).

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Average visibility in January
Martinsville, OH

Average visibility in January - Martinsville, 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).

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Martinsville, Ohio, USA

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