December weather forecast
O'Bryonsville, OH

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Weather in December

The first month of the winter, December, is also a wintry month in O'Bryonsville, Ohio, with an average temperature varying between 41.9°F (5.5°C) and 30.7°F (-0.7°C).

Temperature

The shift from November to December corresponds with a decrease in the average high-temperature, down to a cold 41.9°F (5.5°C) from a fresh 51.4°F (10.8°C). O'Bryonsville reports an average low-temperature of 30.7°F (-0.7°C) during the nights of December.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 81%.

Rainfall

In O'Bryonsville, in December, during 9.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 150.1 rainfall days, and 26.85" (682mm) of precipitation is accumulated.

Snowfall

Months with snowfall in O'Bryonsville are January through April, November and December. In O'Bryonsville, during December, snow falls for 3.9 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 19.4 snowfall days, and 6.65" (169mm) of snow is accumulated.

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 7:38 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:56 am and sunset at 5:25 pm EST.

Sunshine

In December, the average sunshine is 4.1h.

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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold does it get in December?

The average high-temperature and low-temperature in O'Bryonsville during December are 41.9°F (5.5°C) and 30.7°F (-0.7°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 91.4°F (33°C).

What is the most humid month?

February and December, with an average relative humidity of 81%, are most humid months.

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In O'Bryonsville, in December, it is raining for 9.7 days, with typically 1.89" (48mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 3.9 days. Throughout December, 1.18" (30mm) of snow is 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 O'Bryonsville have in December?

In December, the average day length is 9h and 28min.

What time are sunrise and sunset in December in O'Bryonsville?

In December, on the first day of the month, sunrise is at 7:38 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:25 pm EST.

How many hours of sunshine does O'Bryonsville have in December?

In O'Bryonsville, the average sunshine duration in December is 4.1h.

What is the month 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.

What is the UV index intensity in December?

In O'Bryonsville, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe 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
O'Bryonsville, OH

Average temperature in December - O
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in December
O'Bryonsville, OH

Average pressure in December - O
  • Average pressure in December: 30.13"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 December
O'Bryonsville, OH

Average wind speed in December - O
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
O'Bryonsville, OH

Average humidity in December - O
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in December
O'Bryonsville, OH

Average rainfall in December - O
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.38").

Average rainfall days in December
O'Bryonsville, OH

Average rainfall days in December - O
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.1 days).

Average snowfall in December
O'Bryonsville, OH

Average snowfall in December - O
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
O'Bryonsville, OH

Average snowfall days in December - O
  • Average snowfall days in December: 3.9 days

The months with the highest number of snowfall days are January and February (5.5 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
O'Bryonsville, OH

Average daylight in December / Average sunshine in December - O
  • 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
O'Bryonsville, OH

Average sunshine days in December - O
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
O'Bryonsville, OH

Average UV index in December - O
  • 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
O'Bryonsville, OH

Average cloud cover in December - O
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
O'Bryonsville, OH

Average visibility in December - O
  • Average visibility in December: 6mi

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

O'Bryonsville, Ohio, USA

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