December weather forecast
Blooming Grove, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Blooming Grove, Pennsylvania, with an average temperature ranging between min 25.2°F (-3.8°C) and max 36.3°F (2.4°C).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 46°F (7.8°C) to a cold 36.3°F (2.4°C). Nighttime temperatures in December average to a freezing cold 25.2°F (-3.8°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 84%.

Rainfall

In Blooming Grove, in December, it is raining for 9.1 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 142.7 rainfall days, and 24.8" (630mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 8.3 days and accumulates 5.35" (136mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:41 pm EST.

Sunshine

In Blooming Grove, the average sunshine in December is 4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 1 in December translates into these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The average high-temperature, in December, in Blooming Grove, is 36.3°F (2.4°C), while the average low-temperature is 25.2°F (-3.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 84%.

What is the average humidity in December?

The average relative humidity in December is 84%.

How many days does it rain in December?

In Blooming Grove, during December, the rain falls for 9.1 days and regularly aggregates up to 1.97" (50mm) of precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 8.3 days and accumulates 5.35" (136mm) of snow.

How many days does it snow in December?

In Blooming Grove, during December, snow falls for 8.3 days and regularly aggregates up to 5.35" (136mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 15min.

When are sunrise and sunset in December in Blooming Grove?

On the first day of December in Blooming Grove, sunrise is at 7:07 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:41 pm EST.

How many hours of sunshine does Blooming Grove have in December?

The average sunshine duration in December is 4h.

What is the month with the lowest UV index?

December is the month with the lowest UV index in Blooming Grove, with an average maximum UV index of 1.

How high is the UV index in December?

In Blooming Grove, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Blooming Grove, PA

Average temperature in December - Blooming Grove, PA
  • Average high temperature in December: 36.3°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 (30°F).

  • Average low temperature in December: 25.2°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 (18.1°F).

Average pressure in December
Blooming Grove, PA

Average pressure in December - Blooming Grove, PA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Blooming Grove, PA

Average wind speed in December - Blooming Grove, PA
  • Average wind speed in December: 7.9mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Blooming Grove, PA

Average humidity in December - Blooming Grove, PA
  • Average humidity in December: 84%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (77%).

Average rainfall in December
Blooming Grove, PA

Average rainfall in December - Blooming Grove, PA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Blooming Grove, PA

Average rainfall days in December - Blooming Grove, PA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in December
Blooming Grove, PA

Average snowfall in December - Blooming Grove, PA
  • Average snowfall in December: 5.35"

The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Blooming Grove, PA

Average snowfall days in December - Blooming Grove, PA
  • Average snowfall days in December: 8.3 days

The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Blooming Grove, PA

Average daylight in December / Average sunshine in December - Blooming Grove, PA
  • Average daylight in December: 9h and 1min

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 12min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in December
Blooming Grove, PA

Average sunshine days in December - Blooming Grove, PA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (12.1 days).

Average UV index in December
Blooming Grove, PA

Average UV index in December - Blooming Grove, 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).

Average cloud cover in December
Blooming Grove, PA

Average cloud cover in December - Blooming Grove, PA
  • Average cloud cover in December: 60

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Blooming Grove, PA

Average visibility in December - Blooming Grove, PA
  • Average visibility in December: 5mi

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

Blooming Grove, Pennsylvania, USA

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