December weather forecast
Upper Arlington, OH

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Weather in December

The first month of the winter, December, is also an icy month in Upper Arlington, Ohio, with an average temperature varying between 29.3°F (-1.5°C) and 39.2°F (4°C).

Temperature

Upper Arlington's average high-temperature decreases in December, falling from a chilly 49.6°F (9.8°C) in November to an icy 39.2°F (4°C). In the month of December, the nighttime temperature dips to a steady average of 29.3°F (-1.5°C).

Humidity

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

Rainfall

In Upper Arlington, in December, it is raining for 11.6 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 164.3 rainfall days, and 30.55" (776mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Upper Arlington, Ohio, in December, during 8.7 snowfall days, 2.44" (62mm) of snow is typically accumulated. Throughout the year, there are 42.3 snowfall days, and 12.28" (312mm) 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, sunrise is at 7:35 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:17 pm EST.

Sunshine

In December, the average sunshine is 3.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The average high-temperature, in December, in Upper Arlington, is 39.2°F (4°C), while the average low-temperature is 29.3°F (-1.5°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How much does it rain in December?

In Upper Arlington, during December, the rain falls for 11.6 days and regularly aggregates up to 2.4" (61mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 8.7 days. Throughout December, 2.44" (62mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Upper Arlington have in December?

The average day length in December is 9h and 23min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:35 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:17 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December in Upper Arlington is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Upper Arlington, OH

Average temperature in December - Upper Arlington, OH
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Upper Arlington, OH

Average pressure in December - Upper Arlington, 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 (29.94"Hg).

Average wind speed in December
Upper Arlington, OH

Average wind speed in December - Upper Arlington, OH
  • Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Upper Arlington, OH

Average humidity in December - Upper Arlington, OH
  • Average humidity in December: 81%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Upper Arlington, OH

Average rainfall in December - Upper Arlington, OH
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in December
Upper Arlington, OH

Average rainfall days in December - Upper Arlington, OH
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9.1 days).

Average snowfall in December
Upper Arlington, OH

Average snowfall in December - Upper Arlington, OH
  • Average snowfall in December: 2.44"

The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Upper Arlington, OH

Average snowfall days in December - Upper Arlington, OH
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Upper Arlington, OH

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

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 24min).

  • Average sunshine in December: 3h and 5min

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 30min).

Average sunshine days in December
Upper Arlington, OH

Average sunshine days in December - Upper Arlington, OH
  • Average sunshine days in December: 12.4 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in December
Upper Arlington, OH

Average UV index in December - Upper Arlington, 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
Upper Arlington, OH

Average cloud cover in December - Upper Arlington, OH
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Upper Arlington, OH

Average visibility in December - Upper Arlington, OH
  • Average visibility in December: 6mi

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

Upper Arlington, Ohio, USA

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