December weather forecast
Cornog, PA

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Weather in December

December, the first month of the winter in Cornog, is still a cold month, with an average temperature varying between 30.6°F (-0.8°C) and 41.9°F (5.5°C).

Temperature

Cornog's weather in December involves a decrease in the average high-temperature, moving down from November's cool 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). In Cornog, the average temperature during the nights of December drops to a subzero cold 30.6°F (-0.8°C).

Humidity

The average relative humidity in December in Cornog is 79%.

Rainfall

In December, in Cornog, the rain falls for 8.6 days. Throughout December, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 145.6 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 2 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Cornog, Pennsylvania, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:47 pm EST.

Sunshine

In Cornog, the average sunshine in December is 4.8h.

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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Cornog during December?

An average high-temperature, in December, in Cornog, is 41.9°F (5.5°C) and the average low-temperature is 30.6°F (-0.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in December in Cornog?

In Cornog, Pennsylvania, the average relative humidity in December is 79%.

How much does it rain in Cornog in December?

In Cornog, in December, during 8.6 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How many days does it snow in December in Cornog?

In Cornog, Pennsylvania, in December, during 2 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the month with the shortest days in Cornog?

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

How many hours of daylight does Cornog have in December?

In December, the average day length in Cornog is 9h and 23min.

When are sunrise and sunset in December in Cornog?

On the first day of December in Cornog, sunrise is at 7:06 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:47 pm EST.

How long on average sun shines in December in Cornog?

In December, the average sunshine duration in Cornog, Pennsylvania, is 4.8h.

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

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

How high is the UV index in December in Cornog?

In December, the average daily maximum UV index in Cornog is 2. A UV Index 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
Cornog, PA

Average temperature in December - Cornog, PA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in December
Cornog, PA

Average pressure in December - Cornog, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Cornog, PA

Average wind speed in December - Cornog, PA
  • Average wind speed in December: 8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in December
Cornog, PA

Average humidity in December - Cornog, PA
  • Average humidity in December: 79%

The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Cornog, PA

Average rainfall in December - Cornog, PA
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in December
Cornog, PA

Average rainfall days in December - Cornog, PA
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in December
Cornog, PA

Average snowfall in December - Cornog, PA
  • Average snowfall in December: 1.54"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cornog, PA

Average snowfall days in December - Cornog, PA
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Cornog, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Cornog, PA

Average sunshine days in December - Cornog, PA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in December
Cornog, PA

Average UV index in December - Cornog, 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
Cornog, PA

Average cloud cover in December - Cornog, PA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Cornog, PA

Average visibility in December - Cornog, 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).

Cornog, Pennsylvania, USA

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