December weather forecast
Brush Valley, PA

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Weather in December

The first month of the winter, December, is also an icy month in Brush Valley, Pennsylvania, with temperature in the range of an average low of 27.1°F (-2.7°C) and an average high of 37.9°F (3.3°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a chilly 47.5°F (8.6°C) in November to a wintry 37.9°F (3.3°C). In Brush Valley, the expected average low-temperature for December is a freezing cold 27.1°F (-2.7°C).

Humidity

The average relative humidity in December in Brush Valley is 85%.

Rainfall

In December, in Brush Valley, the rain falls for 11.5 days. Throughout December, 1.97" (50mm) of precipitation is accumulated. In Brush Valley, during the entire year, the rain falls for 162.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, in Brush Valley, it is snowing for 12.6 days. Throughout December, 4.41" (112mm) of snow is accumulated. In Brush Valley, during the entire year, snow falls for 62.7 days and aggregates up to 21.3" (541mm) of snow.

Daylight

December has the shortest days of the year in Brush Valley, Pennsylvania, with an average of 9h and 18min of daylight.
On the first day of December in Brush Valley, sunrise is at 7:21 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:59 pm EST.

Sunshine

In December, the average sunshine 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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

How cold does it get in Brush Valley in December?

The average high-temperature and low-temperature in Brush Valley during December are 37.9°F (3.3°C) and 27.1°F (-2.7°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December in Brush Valley?

In Brush Valley, Pennsylvania, the average relative humidity in December is 85%.

How much does it rain in Brush Valley in December?

In Brush Valley, Pennsylvania, in December, it is raining for 11.5 days, with typically 1.97" (50mm) of accumulated precipitation.

How many days does it snow in December in Brush Valley?

In Brush Valley, Pennsylvania, in December, snow falls for 12.6 days, with typically accumulated 4.41" (112mm) of snow.

What is the month with the shortest days in Brush Valley?

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

How many hours of daylight does Brush Valley have in December?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December in Brush Valley?

On the first day of December in Brush Valley, sunrise is at 7:21 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:59 pm EST.

How many hours of sunshine does Brush Valley have in December?

The average sunshine duration in December is 3.3h.

What is the month with the lowest UV index in Brush Valley?

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 Brush Valley?

In Brush Valley, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
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
Brush Valley, PA

Average temperature in December - Brush Valley, PA
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in December
Brush Valley, PA

Average pressure in December - Brush Valley, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Brush Valley, PA

Average wind speed in December - Brush Valley, PA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Brush Valley, PA

Average humidity in December - Brush Valley, 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, June, July and August (78%).

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Average rainfall in December
Brush Valley, PA

Average rainfall in December - Brush Valley, PA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (1.3").

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Average rainfall days in December
Brush Valley, PA

Average rainfall days in December - Brush Valley, PA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in December
Brush Valley, PA

Average snowfall in December - Brush Valley, PA
  • Average snowfall in December: 4.41"

The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Brush Valley, PA

Average snowfall days in December - Brush Valley, PA
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Brush Valley, PA

Average daylight in December / Average sunshine in December - Brush Valley, 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 18min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in December
Brush Valley, PA

Average sunshine days in December - Brush Valley, PA
  • Average sunshine days in December: 10.1 days

The month with the most sunshine days is September (14.8 days).
The months with the least sunshine days are January and February (7.8 days).

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Average UV index in December
Brush Valley, PA

Average UV index in December - Brush Valley, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Brush Valley, PA

Average cloud cover in December - Brush Valley, 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 36).

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Average visibility in December
Brush Valley, PA

Average visibility in December - Brush Valley, PA
  • Average visibility in December: 5mi

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

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Brush Valley, Pennsylvania, USA

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