December weather forecast
Graysville, OH

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Weather in December

The first month of the winter, December, is still a cold month in Graysville, Ohio, with an average temperature ranging between max 40.3°F (4.6°C) and min 29.1°F (-1.6°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a cool 50°F (10°C) in November to a wintry 40.3°F (4.6°C). The low-temperature averages to a subzero cold 29.1°F (-1.6°C) during the nights of December.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Graysville, Ohio, in December, during 13.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Graysville, during the entire year, the rain falls for 184.1 days and collects up to 33.58" (853mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Graysville, during December, snow falls for 11.3 days and regularly aggregates up to 3.39" (86mm) of snow. Throughout the year, there are 52.8 snowfall days, and 19.45" (494mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December in Graysville, sunrise is at 7:27 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:10 pm EST.

Sunshine

In Graysville, the average sunshine in December is 3.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Graysville. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold does it get in Graysville in December?

An average high-temperature, in December, in Graysville, is 40.3°F (4.6°C) and the average low-temperature is 29.1°F (-1.6°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 89.6°F (32°C).

What is the average humidity in December in Graysville?

The average relative humidity in December in Graysville is 83%.

How much does it rain in Graysville in December?

In Graysville, Ohio, in December, it is raining for 13.6 days, with typically 2.95" (75mm) of accumulated precipitation.

How much does it snow in Graysville in December?

In Graysville, Ohio, in December, during 11.3 snowfall days, 3.39" (86mm) of snow is typically accumulated.

What is the month with the shortest days in Graysville?

December has the shortest days of the year in Graysville, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Graysville?

In December, the average day length in Graysville is 9h and 25min.

When is the sunrise / sunset in December in Graysville?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 5:00 pm. On the last day of the month, in Graysville, sunrise is at 7:45 am and sunset at 5:10 pm EST.

How many hours of sunshine does Graysville have in December?

In December, the average sunshine duration in Graysville is 3.6h.

When is the lowest UV index in Graysville?

December is the month with the lowest UV index in Graysville, Ohio, with an average maximum UV index of 1.

What is the UV index intensity in December in Graysville?

The average daily maximum UV index in December in Graysville is 1. A UV Index estimate 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 December
Graysville, OH

Average temperature in December - Graysville, OH
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Graysville, OH

Average pressure in December - Graysville, OH
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Graysville, OH

Average wind speed in December - Graysville, OH
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in December
Graysville, OH

Average humidity in December - Graysville, OH
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

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Average rainfall in December
Graysville, OH

Average rainfall in December - Graysville, OH
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.2").

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Average rainfall days in December
Graysville, OH

Average rainfall days in December - Graysville, OH
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is February (11.3 days).

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Average snowfall in December
Graysville, OH

Average snowfall in December - Graysville, OH
  • Average snowfall in December: 3.39"

The month with the highest snowfall is January (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Graysville, OH

Average snowfall days in December - Graysville, OH
  • Average snowfall days in December: 11.3 days

The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Graysville, OH

Average daylight in December / Average sunshine in December - Graysville, OH
  • Average daylight in December: 9h and 2min

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 December: 3h 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: 3h and 6min).

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Average sunshine days in December
Graysville, OH

Average sunshine days in December - Graysville, OH
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is January (7.7 days).

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Average UV index in December
Graysville, OH

Average UV index in December - Graysville, OH
  • Average UV index in December: 1

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

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Average cloud cover in December
Graysville, OH

Average cloud cover in December - Graysville, OH
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Graysville, OH

Average visibility in December - Graysville, OH
  • Average visibility in December: 5mi

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

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Graysville, Ohio, USA

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