December weather forecast
Cassella, OH

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Weather in December

December, the first month of the winter in Cassella, is also an icy month, with an average temperature varying between 27.3°F (-2.6°C) and 37.6°F (3.1°C).

Temperature

Cassella's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 48.4°F (9.1°C) to an icy 37.6°F (3.1°C). Throughout December, an average nighttime temperature of 27.3°F (-2.6°C) is experienced.

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 83%.

Rainfall

In Cassella, during December, the rain falls for 8.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Cassella, during the entire year, the rain falls for 137.8 days and collects up to 19.13" (486mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Cassella, in December, snow falls for 8.2 days, with typically accumulated 1.57" (40mm) of snow. Throughout the year, there are 37.6 snowfall days, and 8.15" (207mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:42 am and sunset at 5:12 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:21 pm EST.

Sunshine

In December, the average sunshine is 3.8h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Cassella, is 37.6°F (3.1°C) and the average low-temperature is 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 86°F (30°C).

What is the most humid month?

January, February and December, with an average relative humidity of 83%, are most humid months.

What is the average humidity in December?

In December, the average relative humidity is 83%.

How much does it rain in Cassella in December?

In Cassella, in December, it is raining for 8.2 days, with typically 1.26" (32mm) of accumulated precipitation.

How much does it snow in December?

In Cassella, during December, snow falls for 8.2 days and regularly aggregates up to 1.57" (40mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In Cassella, the average day length in December is 9h and 21min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:42 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:21 pm EST.

How many hours of sunshine does Cassella have in December?

In Cassella, the average sunshine duration in December is 3.8h.

When is the lowest UV index?

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

What is the UV index intensity in December?

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

Average temperature in December - Cassella, OH
  • Average high temperature in December: 37.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in December
Cassella, OH

Average pressure in December - Cassella, OH
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Cassella, OH

Average wind speed in December - Cassella, OH
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Cassella, OH

Average humidity in December - Cassella, OH
  • Average humidity in December: 83%

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Cassella, OH

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

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in December
Cassella, OH

Average rainfall days in December - Cassella, OH
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in December
Cassella, OH

Average snowfall in December - Cassella, OH
  • Average snowfall in December: 1.57"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Cassella, OH

Average snowfall days in December - Cassella, OH
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Cassella, 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 18min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Cassella, OH

Average sunshine days in December - Cassella, OH
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in December
Cassella, OH

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

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

Average cloud cover in December
Cassella, OH

Average cloud cover in December - Cassella, OH
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Cassella, OH

Average visibility in December - Cassella, OH
  • Average visibility in December: 6mi

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

Cassella, Ohio, USA

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