December weather forecast and climate
Forest Park, OH

December, the first month of the winter, in Forest Park, is also a wintry month, with average temperature varying between 41°F (5°C) and 30.2°F (-1°C).

Temperature

In Forest Park, Ohio, the average high-temperature drops, from a cool 50.9°F (10.5°C) in November, to a cold 41°F (5°C). The average low-temperature, in Forest Park, is 30.2°F (-1°C).

Humidity

The most humid month is December, with an average relative humidity of 81%.

Rainfall

In December, in Forest Park, Ohio, the rain falls for 8.8 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Forest Park, during the entire year, the rain falls for 121.7 days and collects up to 12.4" (315mm) of precipitation.

Snowfall

Months with snowfall in Forest Park, Ohio, are January through April, November and December. In Forest Park, snow falls for 5.5 days, with typically accumulated 0.67" (17mm) of snow. In Forest Park, during the entire year, snow falls for 23.7 days, and aggregates up to 3.98" (101mm) of snow.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year.

Sunshine

In Forest Park, the average sunshine in December is 4.2h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Forest Park?

In December, in Forest Park, Ohio, the average high-temperature is 41°F (5°C), and the average low-temperature is 30.2°F (-1°C).

What is the most humid month in Forest Park?

December is the most humid month in Forest Park, Ohio, with an average relative humidity of 81%.

What is the average humidity in December in Forest Park?

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

How many days does it rain in December in Forest Park?

In Forest Park, in December, it is raining for 8.8 days, with typically 0.98" (25mm) of accumulated precipitation.

How many days does it snow in December in Forest Park?

In December, it is snowing for 5.5 days. Throughout December, 0.67" (17mm) of snow is accumulated.

What is the month with the shortest days in Forest Park?

December has the shortest days of the year in Forest Park, with an average of 9.4h of daylight.

How many hours of daylight does Forest Park have in December?

The average length of the day in December is 9.4h.

How many hours of sunshine does Forest Park have in December?

In December, the average sunshine in Forest Park, Ohio, is 4.2h.

What is the month with the lowest UV index in Forest Park?

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

What is the UV index intensity in December in Forest Park?

The average daily maximum UV index in December in Forest Park is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Forest Park, OH
  • Average high temperature in December: 5°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in December: -1°C

The month with the highest average low temperature is July (19.1°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

Average pressure in December - Forest Park, OH
  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

Average wind speed in December - Forest Park, OH
  • Average wind speed in December: 13km/h

The windiest month (with the highest average wind speed) is January (14.3km/h).
The calmest months (with the lowest average wind speed) are July and August (8.4km/h).

Average humidity in December - Forest Park, OH
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
Months with the lowest relative humidity are August, September and October (74%).

Average rainfall in December - Forest Park, OH
  • Average rainfall in December: 25mm

The wettest month (with the highest rainfall) is May (36mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in December - Forest Park, OH
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in December - Forest Park, OH
  • Average snowfall in December: 17mm

The month with the highest snowfall is January (24mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Forest Park, OH
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is February (6.1 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Forest Park, OH
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 4.2h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4h).

Average sunshine days in December - Forest Park, OH
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (14 days).

Average UV index in December - Forest Park, OH
  • Average UV index in December: 1

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 - Forest Park, 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 26).

Average visibility in December - Forest Park, OH
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).