December weather forecast
Zelienople, PA

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Weather in December

December, the first month of the winter in Zelienople, is also a wintry month, with an average temperature varying between 27.5°F (-2.5°C) and 38.3°F (3.5°C).

Temperature

In December, the meteorological conditions alter, with the average high-temperature shifting from a frosty 48.4°F (9.1°C) in November to an icy 38.3°F (3.5°C). Zelienople's average low-temperature in December is measured at a freezing cold 27.5°F (-2.5°C).

Humidity

In Zelienople, the average relative humidity in December is 85%.

Rainfall

In Zelienople, during December, the rain falls for 11.9 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 184.5 rainfall days, and 36.54" (928mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Zelienople. In Zelienople, during December, snow falls for 13 days and regularly aggregates up to 4.49" (114mm) of snow. In Zelienople, during the entire year, snow falls for 63.9 days and aggregates up to 24.06" (611mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:26 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:03 pm EST.

Sunshine

The average sunshine in December is 3.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Zelienople, is 38.3°F (3.5°C) and the average low-temperature is 27.5°F (-2.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in December?

In Zelienople, the average relative humidity in December is 85%.

How many days does it rain in December?

In December, in Zelienople, the rain falls for 11.9 days. Throughout December, 2.87" (73mm) of precipitation is accumulated.

How much does it snow in December?

In Zelienople, in December, snow falls for 13 days, with typically accumulated 4.49" (114mm) 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.

How many hours of daylight does Zelienople have in December?

In December, the average day length is 9h and 19min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:03 pm EST.

How many hours of sunshine does Zelienople have in December?

The average sunshine duration in December is 3.2h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Zelienople, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat 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
Zelienople, PA

Average temperature in December - Zelienople, PA
  • 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 (31.8°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Zelienople, PA

Average pressure in December - Zelienople, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Zelienople, PA

Average wind speed in December - Zelienople, PA
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in December
Zelienople, PA

Average humidity in December - Zelienople, PA
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Zelienople, PA

Average rainfall in December - Zelienople, PA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in December
Zelienople, PA

Average rainfall days in December - Zelienople, PA
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is January (10.3 days).

Average snowfall in December
Zelienople, PA

Average snowfall in December - Zelienople, PA
  • Average snowfall in December: 4.49"

The month with the highest snowfall is January (6.38").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Zelienople, PA

Average snowfall days in December - Zelienople, PA
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Zelienople, PA

Average daylight in December / Average sunshine in December - Zelienople, PA
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Zelienople, PA

Average sunshine days in December - Zelienople, PA
  • Average sunshine days in December: 9.8 days

The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is February (7.2 days).

Average UV index in December
Zelienople, PA

Average UV index in December - Zelienople, PA
  • 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
Zelienople, PA

Average cloud cover in December - Zelienople, PA
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Zelienople, PA

Average visibility in December - Zelienople, PA
  • Average visibility in December: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Zelienople, Pennsylvania, USA

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