December weather forecast
Blair Mill Village East, PA

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Weather in December

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

Temperature

Blair Mill Village East experiences a temperature shift at the start of December, with average high-temperatures adjusting from a cool 51.8°F (11°C) in November to a frosty 42.8°F (6°C). Nighttime temperatures in December average to a subzero cold 31.1°F (-0.5°C).

Humidity

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

Rainfall

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

Snowfall

Months with snowfall are January through May, November and December. In Blair Mill Village East, Pennsylvania, in December, snow falls for 1.7 days, with typically accumulated 0.28" (7mm) of snow. In Blair Mill Village East, 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 the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:44 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Blair Mill Village East, 42.8°F (6°C) is the average high-temperature and 31.1°F (-0.5°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 89.6°F (32°C).

What are the most humid months in Blair Mill Village East?

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

What is the average humidity in December?

In December, the average relative humidity in Blair Mill Village East is 78%.

What is the rainiest month?

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

How many days does it rain in December?

In December, the rain falls for 5.8 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

How many days does it snow in December?

In Blair Mill Village East, in December, snow falls for 1.7 days, with typically accumulated 0.28" (7mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Blair Mill Village East have in December?

The average day length in December is 9h and 22min.

When are sunrise and sunset in December?

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 Blair Mill Village East have in December?

The average sunshine duration in December is 5h.

When is 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 Blair Mill Village East, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Blair Mill Village East, PA

Average temperature in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average pressure in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average wind speed in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average humidity in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average rainfall in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average rainfall days in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average snowfall in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average snowfall days in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average daylight in December / Average sunshine in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average sunshine days in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average UV index in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average cloud cover in December - Blair Mill Village East, 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
Blair Mill Village East, PA

Average visibility in December - Blair Mill Village East, 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).

Blair Mill Village East, Pennsylvania, USA

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