December weather forecast
Cetronia, PA

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Weather in December

December, the first month of the winter in Cetronia, is still a cold month, with an average temperature varying between 40.1°F (4.5°C) and 28.9°F (-1.7°C).

Temperature

As November transitions to December, the average high-temperature falls from a frosty 49.8°F (9.9°C) to an icy 40.1°F (4.5°C). Cetronia, in December, experiences an average temperature of 28.9°F (-1.7°C) at night.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Cetronia, during December, the rain falls for 9.2 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Cetronia, Pennsylvania, during the entire year, the rain falls for 145.1 days and collects up to 27.24" (692mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Cetronia. In December, in Cetronia, it is snowing for 2.5 days. Throughout December, 2.28" (58mm) of snow is accumulated. Throughout the year, there are 20.4 snowfall days, and 13.82" (351mm) of snow is accumulated.

Daylight

The month with the shortest days in Cetronia is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:45 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

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 estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

Is it cold in Cetronia during December?

Cetronia in December has an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 28.9°F (-1.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 86°F (30°C).

What is the average humidity in December in Cetronia?

In December, the average relative humidity is 81%.

How much does it rain in Cetronia in December?

In Cetronia, Pennsylvania, in December, it is raining for 9.2 days, with typically 2.32" (59mm) of accumulated precipitation.

How many days does it snow in December in Cetronia?

In Cetronia, during December, snow falls for 2.5 days and regularly aggregates up to 2.28" (58mm) of snow.

What is the month with the shortest days in Cetronia?

The month with the shortest days in Cetronia is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Cetronia?

In Cetronia, Pennsylvania, the average day length in December is 9h and 20min.

When are sunrise and sunset in December in Cetronia?

On the first day of December in Cetronia, sunrise is at 7:07 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.

How many hours of sunshine does Cetronia have in December?

In Cetronia, Pennsylvania, the average sunshine duration in December is 4.7h.

When is the lowest UV index in Cetronia?

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

What is the UV index reading in December in Cetronia?

In Cetronia, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Cetronia, PA

Average temperature in December - Cetronia, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Cetronia, PA

Average pressure in December - Cetronia, 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).

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Average wind speed in December
Cetronia, PA

Average wind speed in December - Cetronia, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Cetronia, PA

Average humidity in December - Cetronia, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in December
Cetronia, PA

Average rainfall in December - Cetronia, PA
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in December
Cetronia, PA

Average rainfall days in December - Cetronia, PA
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Cetronia, PA

Average snowfall in December - Cetronia, PA
  • Average snowfall in December: 2.28"

The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Cetronia, PA

Average snowfall days in December - Cetronia, PA
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (6.6 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
Cetronia, PA

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

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in December
Cetronia, PA

Average sunshine days in December - Cetronia, PA
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in December
Cetronia, PA

Average UV index in December - Cetronia, PA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Cetronia, PA

Average cloud cover in December - Cetronia, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in December
Cetronia, PA

Average visibility in December - Cetronia, PA
  • Average visibility in December: 5mi

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

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Cetronia, Pennsylvania, USA

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