December weather forecast
New Silver Brook, PA

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Weather in December

December, the first month of the winter in New Silver Brook, is still a cold month, with an average temperature fluctuating between 38.1°F (3.4°C) and 27.3°F (-2.6°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a chilly 47.5°F (8.6°C) to a cold 38.1°F (3.4°C). New Silver Brook, during December nights, observes an average temperature of 27.3°F (-2.6°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 4.5 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 66.7 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

January through March, October through December are months with snowfall. In New Silver Brook, Pennsylvania, during December, snow falls for 3.8 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 21.5 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:46 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature during December is 38.1°F (3.4°C) and the low-temperature is 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 83%.

What is the average humidity in December?

In December, the average relative humidity is 83%.

How much does it rain in December?

In New Silver Brook, during December, the rain falls for 4.5 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in December?

In New Silver Brook, in December, snow falls for 3.8 days, with typically accumulated 0.43" (11mm) of snow.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 18min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:46 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.3h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes 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
New Silver Brook, PA

Average temperature in December - New Silver Brook, PA
  • Average high temperature in December: 38.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
New Silver Brook, PA

Average pressure in December - New Silver Brook, 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
New Silver Brook, PA

Average wind speed in December - New Silver Brook, PA
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
New Silver Brook, PA

Average humidity in December - New Silver Brook, PA
  • Average humidity in December: 83%

The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
New Silver Brook, PA

Average rainfall in December - New Silver Brook, PA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in December
New Silver Brook, PA

Average rainfall days in December - New Silver Brook, PA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is April (8.1 days).
The month with the least rainy days is November (3.5 days).

Average snowfall in December
New Silver Brook, PA

Average snowfall in December - New Silver Brook, PA
  • Average snowfall in December: 0.43"

The months with the highest snowfall are January and November (0.71").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
New Silver Brook, PA

Average snowfall days in December - New Silver Brook, PA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
New Silver Brook, PA

Average daylight in December / Average sunshine in December - New Silver Brook, 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in December
New Silver Brook, PA

Average sunshine days in December - New Silver Brook, PA
  • Average sunshine days in December: 24.9 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is May (19.9 days).

Average UV index in December
New Silver Brook, PA

Average UV index in December - New Silver Brook, PA
  • Average UV index in December: 2

The month with the highest UV index is July (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
New Silver Brook, PA

Average cloud cover in December - New Silver Brook, PA
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
New Silver Brook, PA

Average visibility in December - New Silver Brook, PA
  • Average visibility in December: 5mi

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

New Silver Brook, Pennsylvania, USA

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