December weather forecast
Parma, OH

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Weather in December

Parma dives into winter with December bringing plummeting temperatures, significant cloud coverage, and frequent bouts of snowfall. It is the beginning of what is often a long and cold season, offering residents a chance to enjoy winter-related activities. As daylight shrinks, the visibility remains constant, allowing locals to adapt to the shortened length of the day. With chilling wind gusts coupled with sparsely distributed sunshine, December certainly paints a frigid landscape. The weather during this month hits a new low with temperatures falling to a minimum of 29.3°F (-1.5°C) promising a white Christmas.

Temperature

With December's onset, the average high-temperature recedes from November's chilly 47.3°F (8.5°C) to an icy 37.6°F (3.1°C). Parma's nighttime temperature in December experiences a slight dip from daytime highs, falling to an average of 29.3°F (-1.5°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Parma, in December, it is raining for 5.5 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 109.1 rainfall days, and 8.43" (214mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Parma, during December, snow falls for 5.6 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, there are 32.9 snowfall days, and 2.8" (71mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:52 am and sunset at 5:07 pm EST.

Sunshine

In Parma, the average sunshine in December is 3.3h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

How cold is December?

In Parma, 37.6°F (3.1°C) is the average high-temperature and 29.3°F (-1.5°C) is the average low-temperature during December.

What is the average humidity in December?

The average relative humidity in December is 82%.

How much does it rain in December?

In December, the rain falls for 5.5 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in December?

In Parma, in December, during 5.6 snowfall days, 0.51" (13mm) of snow is typically accumulated.

What is the month with the shortest days in Parma?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

How many hours of daylight does Parma have in December?

In December, the average day length is 9h and 14min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:34 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:07 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.3h.

When is the lowest UV index?

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

How high is the UV index in December?

In Parma, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Parma, OH

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

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Parma, OH

Average pressure in December - Parma, OH
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Parma, OH

Average wind speed in December - Parma, OH
  • Average wind speed in December: 10.2mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in December
Parma, OH

Average humidity in December - Parma, OH
  • Average humidity in December: 82%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in December
Parma, OH

Average rainfall in December - Parma, OH
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are February and November (0.47").

Average rainfall days in December
Parma, OH

Average rainfall days in December - Parma, OH
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in December
Parma, OH

Average snowfall in December - Parma, OH
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Parma, OH

Average snowfall days in December - Parma, OH
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Parma, OH
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in December
Parma, OH

Average sunshine days in December - Parma, OH
  • Average sunshine days in December: 21.2 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in December
Parma, OH

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

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

Average cloud cover in December
Parma, OH

Average cloud cover in December - Parma, OH
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in December
Parma, OH

Average visibility in December - Parma, 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).

Parma, Ohio, USA

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