December weather forecastZelienople, PA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 18min
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 12min
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: 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: 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: 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: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).





