December weather forecast
Grandview, OH

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Weather in December

The first month of the winter, December, is also an icy month in Grandview, Ohio, with an average temperature fluctuating between 40.8°F (4.9°C) and 29.5°F (-1.4°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a fresh 50.9°F (10.5°C) in November to a wintry 40.8°F (4.9°C). Grandview registers a consistent average low-temperature of 29.5°F (-1.4°C) during December.

Humidity

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

Rainfall

In Grandview, in December, it is raining for 11.4 days, with typically 1.46" (37mm) of accumulated precipitation. In Grandview, during the entire year, the rain falls for 154.1 days and collects up to 20" (508mm) of precipitation.

Snowfall

Months with snowfall in Grandview are January through April, November and December. In Grandview, during December, snow falls for 8 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, in Grandview, there are 33.4 snowfall days, and 5.55" (141mm) of snow is accumulated.

Daylight

The month with the shortest days in Grandview, Ohio, is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:39 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:26 pm EST.

Sunshine

The average sunshine in December in Grandview is 4.2h.

UV index

The month with the lowest UV index in Grandview is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Grandview?

Grandview in December has an average high-temperature of 40.8°F (4.9°C) and an average low-temperature of 29.5°F (-1.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 89.6°F (32°C).

What is the most humid month in Grandview?

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

What is the average humidity in December in Grandview?

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

How many days does it rain in December in Grandview?

In December, the rain falls for 11.4 days. Throughout December, 1.46" (37mm) of precipitation is accumulated.

How much does it snow in Grandview in December?

In Grandview, in December, during 8 snowfall days, 1.26" (32mm) of snow is typically accumulated.

What is the month with the shortest days in Grandview?

The month with the shortest days in Grandview is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Grandview have in December?

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

When are sunrise and sunset in December in Grandview?

On the first day of December in Grandview, sunrise is at 7:39 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:26 pm EST.

How many hours of sunshine does Grandview have in December?

In December, the average sunshine duration in Grandview is 4.2h.

What is the month with the lowest UV index in Grandview?

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

What is the UV index intensity in December in Grandview?

In Grandview, Ohio, the average daily maximum UV index in December is 1. A UV Index estimate 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
Grandview, OH

Average temperature in December - Grandview, OH
  • Average high temperature in December: 40.8°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 (35.2°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in December
Grandview, OH

Average pressure in December - Grandview, 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).

Average wind speed in December
Grandview, OH

Average wind speed in December - Grandview, OH
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Grandview, OH

Average humidity in December - Grandview, 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%).

Average rainfall in December
Grandview, OH

Average rainfall in December - Grandview, OH
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is November (1.1").

Average rainfall days in December
Grandview, OH

Average rainfall days in December - Grandview, OH
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (8 days).

Average snowfall in December
Grandview, OH

Average snowfall in December - Grandview, OH
  • Average snowfall in December: 1.26"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Grandview, OH

Average snowfall days in December - Grandview, OH
  • Average snowfall days in December: 8 days

The month with the highest number of snowfall days is January (9.8 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
Grandview, OH

Average daylight in December / Average sunshine in December - Grandview, 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 month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Grandview, OH

Average sunshine days in December - Grandview, OH
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10 days).

Average UV index in December
Grandview, OH

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

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Grandview, OH

Average cloud cover in December - Grandview, OH
  • Average cloud cover in December: 56

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
Grandview, OH

Average visibility in December - Grandview, 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).

Grandview, Ohio, USA

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