December weather forecast
Grahamsville, OH

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Weather in December

The first month of the winter, December, is also a wintry month in Grahamsville, Ohio, with an average temperature fluctuating between 30.9°F (-0.6°C) and 42.1°F (5.6°C).

Temperature

Grahamsville's average high-temperature decreases in December, falling from a fresh 51.8°F (11°C) in November to a wintry 42.1°F (5.6°C). Grahamsville observes an average low-temperature of 30.9°F (-0.6°C) during December.

Humidity

In Grahamsville, Ohio, the average relative humidity in December is 81%.

Rainfall

In Grahamsville, during December, the rain falls for 10 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Grahamsville, during the entire year, the rain falls for 124.7 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Grahamsville, in December, during 5.5 snowfall days, 0.75" (19mm) of snow is typically accumulated. In Grahamsville, during the entire year, snow falls for 26.7 days and aggregates up to 4.37" (111mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:31 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:18 pm EST.

Sunshine

In Grahamsville, the average sunshine in December is 4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The average high-temperature and low-temperature during December are 42.1°F (5.6°C) and 30.9°F (-0.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 93.2°F (34°C).

What is the average humidity in December?

In Grahamsville, the average relative humidity in December is 81%.

How much does it rain in December?

In December, in Grahamsville, the rain falls for 10 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

How much does it snow in December?

In Grahamsville, in December, during 5.5 snowfall days, 0.75" (19mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Grahamsville have in December?

In Grahamsville, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:31 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:18 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In Grahamsville, the average daily maximum UV index in December is 2. A UV Index reading 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 December
Grahamsville, OH

Average temperature in December - Grahamsville, OH
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 30.9°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 (23.5°F).

Average pressure in December
Grahamsville, OH

Average pressure in December - Grahamsville, OH
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Grahamsville, OH

Average wind speed in December - Grahamsville, OH
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Grahamsville, OH

Average humidity in December - Grahamsville, OH
  • Average humidity in December: 81%

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are August and September (75%).

Average rainfall in December
Grahamsville, OH

Average rainfall in December - Grahamsville, OH
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (1.57").
The driest months (with the least rainfall) are September and November (0.75").

Average rainfall days in December
Grahamsville, OH

Average rainfall days in December - Grahamsville, OH
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in December
Grahamsville, OH

Average snowfall in December - Grahamsville, OH
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Grahamsville, OH

Average snowfall days in December - Grahamsville, OH
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Grahamsville, OH
  • Average daylight in December: 9h and 3min

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 December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Grahamsville, OH

Average sunshine days in December - Grahamsville, OH
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in December
Grahamsville, OH

Average UV index in December - Grahamsville, OH
  • Average UV index in December: 2

The months with the highest UV index are May, 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 December
Grahamsville, OH

Average cloud cover in December - Grahamsville, OH
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Grahamsville, OH

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

The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).

Grahamsville, Ohio, USA

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