January weather forecast
Costonia, OH

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Weather in January

January, the same as December, is an icy winter month in Costonia, Ohio, with an average temperature fluctuating between 33.1°F (0.6°C) and 20.3°F (-6.5°C).

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 33.1°F (0.6°C) and a low of 20.3°F (-6.5°C).

Humidity

In January, the average relative humidity is 84%.

Rainfall

In Costonia, Ohio, during January, the rain falls for 10.2 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 175.9 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 15.5 days and accumulates 5" (127mm) of snow.

Daylight

In Costonia, the average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:06 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:38 pm EST.

Sunshine

The month with the least sunshine in Costonia, Ohio, is January, with an average of 2.9h of sunshine.

UV index

In Costonia, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 during January translates into the following guidance:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To avoid the Sun's strongest rays, limit exposure around the mid-day period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What are the coldest months in Costonia?

The month of January sees the average lowest temperatures in Costonia, Ohio, reaching 33.1°F (0.6°C) at the peak and 20.3°F (-6.5°C) at the low.

How cold is January in Costonia?

During January, Costonia experiences an average high-temperature of 33.1°F (0.6°C) and a low-temperature of 20.3°F (-6.5°C).

What is the average humidity in January in Costonia?

In Costonia, the average relative humidity in January is 84%.

How much does it rain in Costonia in January?

In January, the rain falls for 10.2 days. Throughout January, 2.2" (56mm) of precipitation is accumulated.

When does it snow the most in Costonia?

January is the month with the most snowfall in Costonia, Ohio. Snow falls for 15.5 days and accumulates 5" (127mm) of snow.

How much does it snow in Costonia in January?

In January, it is snowing for 15.5 days. Throughout January, 5" (127mm) of snow is accumulated.

How many hours of daylight does Costonia have in January?

The average day length in January is 9h and 41min.

When are sunrise and sunset in January in Costonia?

On the first day of January, sunrise is at 7:45 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:38 pm EST.

What is the month with the least sunshine in Costonia?

The month with the least sunshine in Costonia, Ohio, is January, with an average of 2.9h of sunshine.

How long on average sun shines in January in Costonia?

In Costonia, Ohio, the average sunshine duration in January is 2.9h.

How high is the UV index in January in Costonia?

The average daily maximum UV index in January in Costonia, Ohio, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Costonia, OH

Average temperature in January - Costonia, OH
  • Average high temperature in January: 33.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in January: 20.3°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 (20.3°F).

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Average pressure in January
Costonia, OH

Average pressure in January - Costonia, OH
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Costonia, OH

Average wind speed in January - Costonia, OH
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in January
Costonia, OH

Average humidity in January - Costonia, OH
  • Average humidity in January: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in January
Costonia, OH

Average rainfall in January - Costonia, OH
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is November (2.17").

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Average rainfall days in January
Costonia, OH

Average rainfall days in January - Costonia, OH
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.4 days).

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Average snowfall in January
Costonia, OH

Average snowfall in January - Costonia, OH
  • Average snowfall in January: 5"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Costonia, OH

Average snowfall days in January - Costonia, OH
  • Average snowfall days in January: 15.5 days

The month with the highest number of snowfall days is January (15.5 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
Costonia, OH

Average daylight in January / Average sunshine in January - Costonia, 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 18min).

  • Average sunshine in January: 2h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in January
Costonia, OH

Average sunshine days in January - Costonia, OH
  • Average sunshine days in January: 8.8 days

The month with the most sunshine days is November (15.5 days).
The months with the least sunshine days are January and May (8.8 days).

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Average UV index in January
Costonia, OH

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Costonia, OH

Average cloud cover in January - Costonia, OH
  • Average cloud cover in January: 69

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in January
Costonia, OH

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

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

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Costonia, Ohio, USA

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