December weather forecast
Deer Park, OH

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Weather in December

The first month of the winter, December, is also a wintry month in Deer Park, Ohio, with an average temperature varying between 29.8°F (-1.2°C) and 41°F (5°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's cool 50.9°F (10.5°C) to an icy 41°F (5°C). Deer Park experiences a steady low-temperature of 29.8°F (-1.2°C) throughout December.

Humidity

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

Rainfall

In Deer Park, in December, during 6.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Deer Park, during the entire year, the rain falls for 95.1 days and collects up to 7.8" (198mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 4.7 days. Throughout December, 0.43" (11mm) of snow is accumulated. Throughout the year, there are 22.8 snowfall days, and 2.32" (59mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:38 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:56 am and sunset at 5:24 pm EST.

Sunshine

In December, the average sunshine is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

How cold is it in December?

In Deer Park, 41°F (5°C) is the average high-temperature and 29.8°F (-1.2°C) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

What are the most humid months?

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

What is the average humidity in December?

The average relative humidity in December is 81%.

How much does it rain in December?

In Deer Park, during December, the rain falls for 6.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.

How many days does it snow in December?

In Deer Park, during December, snow falls for 4.7 days and regularly aggregates up to 0.43" (11mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:38 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:24 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.2h.

When is 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 intensity in December?

The average daily maximum UV index in December is 2. 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
Deer Park, OH

Average temperature in December - Deer Park, OH
  • Average high temperature in December: 41°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in December
Deer Park, OH

Average pressure in December - Deer Park, 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
Deer Park, OH

Average wind speed in December - Deer Park, OH
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in December
Deer Park, OH

Average humidity in December - Deer Park, 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
Deer Park, OH

Average rainfall in December - Deer Park, OH
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in December
Deer Park, OH

Average rainfall days in December - Deer Park, OH
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in December
Deer Park, OH

Average snowfall in December - Deer Park, OH
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Deer Park, OH

Average snowfall days in December - Deer Park, OH
  • Average snowfall days in December: 4.7 days

The month with the highest number of snowfall days is January (6.2 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
Deer Park, OH

Average daylight in December / Average sunshine in December - Deer Park, 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 months with the most sunshine are June, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Deer Park, OH

Average sunshine days in December - Deer Park, OH
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (16 days).

Average UV index in December
Deer Park, OH

Average UV index in December - Deer Park, 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
Deer Park, OH

Average cloud cover in December - Deer 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 27).

Average visibility in December
Deer Park, OH

Average visibility in December - Deer Park, 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).

Deer Park, Ohio, USA

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