December weather forecast
Bonair, PA

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Weather in December

The first month of the winter, December, is also a frosty month in Bonair, Pennsylvania, with an average temperature varying between 42.8°F (6°C) and 31.1°F (-0.5°C).

Temperature

In Bonair, the beginning of December is marked by a lowered average high-temperature, shifting from November's fresh 51.8°F (11°C) to a frosty 42.8°F (6°C). During December, Bonair records a consistent average nighttime temperature of 31.1°F (-0.5°C).

Humidity

February, October and December, with an average relative humidity of 78%, are the most humid months in Bonair, Pennsylvania.

Rainfall

December is the month with the most rainfall in Bonair. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Bonair, Pennsylvania, during December, snow falls for 1.7 days and regularly aggregates up to 0.28" (7mm) of snow. In Bonair, during the entire year, snow falls for 12.6 days and aggregates up to 1.73" (44mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December in Bonair, Pennsylvania, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.

Sunshine

In Bonair, the average sunshine in December is 5h.

UV index

The months with the lowest UV index in Bonair, Pennsylvania, are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Bonair during December?

An average high-temperature, in December, in Bonair, is 42.8°F (6°C) and the average low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 89.6°F (32°C).

What are the most humid months in Bonair?

The months with the highest humidity in Bonair are February, October and December, with an average relative humidity of 78%.

What is the average humidity in December in Bonair?

The average relative humidity in December in Bonair is 78%.

What is the wettest month in Bonair?

The month with the most rainfall in Bonair is December, when the rain falls for 5.8 days and typically aggregates up to 0.75" (19mm) of precipitation.

How much does it rain in Bonair in December?

In Bonair, Pennsylvania, during December, the rain falls for 5.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How many days does it snow in December in Bonair?

In Bonair, in December, during 1.7 snowfall days, 0.28" (7mm) of snow is typically accumulated.

What is the month with the shortest days in Bonair?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Bonair, Pennsylvania.

What is the average length of the day in December in Bonair?

In December, the average day length in Bonair, Pennsylvania, is 9h and 22min.

What time are sunrise and sunset in December in Bonair?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.

How many hours of sunshine does Bonair have in December?

The average sunshine duration in December in Bonair, Pennsylvania, is 5h.

What are the months with the lowest UV index in Bonair?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bonair.

What is the UV index intensity in December in Bonair?

In Bonair, Pennsylvania, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Bonair, PA

Average temperature in December - Bonair, PA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Bonair, PA

Average pressure in December - Bonair, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Bonair, PA

Average wind speed in December - Bonair, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Bonair, PA

Average humidity in December - Bonair, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in December
Bonair, PA

Average rainfall in December - Bonair, PA
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in December
Bonair, PA

Average rainfall days in December - Bonair, PA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in December
Bonair, PA

Average snowfall in December - Bonair, PA
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Bonair, PA

Average snowfall days in December - Bonair, PA
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Bonair, PA

Average sunshine days in December - Bonair, PA
  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).

Average UV index in December
Bonair, PA

Average UV index in December - Bonair, PA
  • 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, March, November and December (UV index 2).

Average cloud cover in December
Bonair, PA

Average cloud cover in December - Bonair, PA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Bonair, PA

Average visibility in December - Bonair, PA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Bonair, Pennsylvania, USA

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