Cleveland
Ohio, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Cleveland, OH

A view of the Veterans Memorial Bridge on the Cuyahoga River, in Cleveland, Ohio, with a view of the old lift bridge and city buildings out far
A view of the Veterans Memorial Bridge on the Cuyahoga River, in Cleveland, Ohio, with a view of the old lift bridge and city buildings out far
The first month of the winter, December, is also a wintry month in Cleveland, Ohio, with average temperature varying between 26.4°F (-3.1°C) and 38.3°F (3.5°C).

Temperature

In December, the average high-temperature decreases, from a cool 50.7°F (10.4°C) in November, to a wintry 38.3°F (3.5°C). The average low-temperature, in December, is 26.4°F (-3.1°C).

Humidity

The most humid month in Cleveland, Ohio, is December, with an average relative humidity of 74.1%.

Rainfall

In Cleveland, during 16 rainfall days, 3.1" (78.7mm) of precipitation is typically accumulated. In Cleveland, during the entire year, the rain falls for 154.9 days and collects up to 39.1" (994.1mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Cleveland.

Ocean temperature

In December, the average ocean temperature is 39.4°F (4.1°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

The month with the shortest days in Cleveland is December, with an average of 9.2h of daylight.

Sunshine

With an average of 2.2h of sunshine, December has the least sunshine of the year.

UV index

The month with the lowest UV index 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 unprotected exposure to the Sun's UV rays for average individuals.
The average daily UV index of 1 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Cleveland?

In Cleveland, in December, the average high-temperature is 38.3°F (3.5°C), and the average low-temperature is 26.4°F (-3.1°C).

What is the most humid month in Cleveland?

December is the most humid month in Cleveland, with an average relative humidity of 74.1%.

What is the average humidity in December in Cleveland?

In Cleveland, the average relative humidity in December is 74.1%.

How much does it rain in Cleveland in December?

In Cleveland, Ohio, in December, during 16 rainfall days, 3.1" (78.7mm) of precipitation is typically accumulated.

How much does it snow in Cleveland in December?

In December, it is snowing for 10 days. Throughout December, 14.1" (358.1mm) of snow is accumulated.

How cold is the water in December in Cleveland?

In December, the average ocean temperature in Cleveland, Ohio, is 39.4°F (4.1°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Cleveland?

With an average of 9.2h of daylight, December has the shortest days of the year in Cleveland.

How many hours of daylight does Cleveland have in December?

In December, the average length of the day is 9.2h.

What is the month with the least sunshine in Cleveland?

December has the least sunshine of the year, with an average of 2.2h of sunshine.

How long on average sun shines in December in Cleveland?

In Cleveland, the average sunshine in December is 2.2h.

When is the lowest UV index in Cleveland?

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

What is the UV index intensity in December in Cleveland?

In December, the average daily maximum UV index in Cleveland, Ohio, is 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.
Average temperature in December - Cleveland, OH
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.4°F).

  • Average low temperature in December: 26.4°F

The month with the highest average low temperature is July (64.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average humidity in December - Cleveland, OH
  • Average humidity in December: 74.1%

The month with the highest relative humidity is December (74.1%).
The month with the lowest relative humidity is April (66.1%).

Average rainfall in December - Cleveland, OH
  • Average rainfall in December: 3.1"

The wettest month (with the highest rainfall) is September (3.8").
The driest month (with the lowest rainfall) is February (2.3").

Average rainfall days in December - Cleveland, OH
  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is January (17.1 days).
The month with the lowest number of rainy days is August (9.8 days).

Average snowfall in December - Cleveland, OH
  • Average snowfall in December: 14.1"

The month with the highest snowfall is January (18.7").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in December - Cleveland, OH
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (13.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in December - Cleveland, OH
  • Average sea temperature in December: 39.3°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (33.2°F).

Average daylight in December / Average sunshine in December - Cleveland, OH
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 2.2h

The month with most sunshine is July (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 2.2h).

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

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).