December weather forecast
Blue Ash, OH

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Weather in December

December, the first month of the winter in Blue Ash, is also a wintry month, with an average temperature ranging between min 29.8°F (-1.2°C) and max 41°F (5°C).

Temperature

During Blue Ash's transition into December, the average high-temperature lessens, moving from a cool 50.9°F (10.5°C) in November to a wintry 41°F (5°C). Blue Ash's nighttime temperature in December falls to an average of 29.8°F (-1.2°C).

Humidity

January, February and December, with an average relative humidity of 81%, are the most humid months in Blue Ash, Ohio.

Rainfall

In Blue Ash, during December, the rain falls for 6.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Blue Ash, Ohio, there are 95.1 rainfall days, and 7.8" (198mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Blue Ash, in December, snow falls for 4.7 days, with typically accumulated 0.43" (11mm) of snow. In Blue Ash, during the entire year, snow falls for 22.8 days and aggregates up to 2.32" (59mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:38 am and sunset at 5:14 pm. On the last day of December, in Blue Ash, sunrise is at 7:56 am and sunset at 5:24 pm EST.

Sunshine

In Blue Ash, the average sunshine in December is 4.2h.

UV index

The months with the lowest UV index in Blue Ash are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How cold does it get in Blue Ash in December?

The high-temperature, in December, in Blue Ash, records 41°F (5°C), while the low-temperature is 29.8°F (-1.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What are the most humid months in Blue Ash?

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

What is the average humidity in December in Blue Ash?

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

How many days does it rain in December in Blue Ash?

In Blue Ash, Ohio, in December, during 6.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How much does it snow in Blue Ash in December?

In December, it is snowing for 4.7 days. Throughout December, 0.43" (11mm) of snow is accumulated.

What is the month with the shortest days in Blue Ash?

December has the shortest days of the year in Blue Ash, Ohio, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Blue Ash?

The average day length in December is 9h and 28min.

What time are sunrise and sunset in December in Blue Ash?

On the first day of December in Blue Ash, Ohio, sunrise is at 7:38 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:24 pm EST.

How long on average sun shines in December in Blue Ash?

The average sunshine duration in December in Blue Ash, Ohio, is 4.2h.

When is the lowest UV index in Blue Ash?

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

What is the UV index reading in December in Blue Ash?

In Blue Ash, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Blue Ash, OH

Average temperature in December - Blue Ash, OH
  • Average high temperature in December: 41°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 (35.2°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in December
Blue Ash, OH

Average pressure in December - Blue Ash, OH
  • 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).

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Average wind speed in December
Blue Ash, OH

Average wind speed in December - Blue Ash, OH
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Blue Ash, OH

Average humidity in December - Blue Ash, OH
  • Average humidity in December: 81%

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

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Average rainfall in December
Blue Ash, OH

Average rainfall in December - Blue Ash, OH
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is September (0.31").

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Average rainfall days in December
Blue Ash, OH

Average rainfall days in December - Blue Ash, OH
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall in December
Blue Ash, OH

Average snowfall in December - Blue Ash, OH
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Blue Ash, OH

Average snowfall days in December - Blue Ash, OH
  • Average snowfall days in December: 4.7 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Blue Ash, OH

Average daylight in December / Average sunshine in December - Blue Ash, 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 1min

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

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Average sunshine days in December
Blue Ash, OH

Average sunshine days in December - Blue Ash, OH
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (16 days).

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Average UV index in December
Blue Ash, OH

Average UV index in December - Blue Ash, 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).

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Average cloud cover in December
Blue Ash, OH

Average cloud cover in December - Blue Ash, OH
  • 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).

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Average visibility in December
Blue Ash, OH

Average visibility in December - Blue Ash, OH
  • 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).

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Blue Ash, Ohio, USA

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