December weather forecast
Sacramento, PA

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Weather in December

The first month of the winter, December, is also an icy month in Sacramento, Pennsylvania, with an average temperature fluctuating between 28°F (-2.2°C) and 39.2°F (4°C).

Temperature

As December commences, the average high-temperature shows a reduction, transitioning from a frosty 48.2°F (9°C) in November to an icy 39.2°F (4°C). During December, Sacramento records a consistent average nighttime temperature of 28°F (-2.2°C).

Humidity

In Sacramento, the average relative humidity in December is 81%.

Rainfall

In Sacramento, during December, the rain falls for 5.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Sacramento, there are 100.8 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sacramento, Pennsylvania, are January through April, November and December. In December, it is snowing for 4.2 days. Throughout December, 0.24" (6mm) of snow is accumulated. Throughout the year, there are 21.7 snowfall days, and 2.48" (63mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Sacramento, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:39 pm. On the last day of December, in Sacramento, sunrise is at 7:29 am and sunset at 4:49 pm EST.

Sunshine

The average sunshine in December in Sacramento is 4.3h.

UV index

The months with the lowest UV index in Sacramento are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

Is December cold in Sacramento?

December temperatures in Sacramento, Pennsylvania, vary between a high-temperature of 39.2°F (4°C) and a low-temperature of 28°F (-2.2°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Sacramento?

In Sacramento, Pennsylvania, the average relative humidity in December is 81%.

How many days does it rain in December in Sacramento?

In Sacramento, Pennsylvania, in December, during 5.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How much does it snow in Sacramento in December?

In Sacramento, during December, snow falls for 4.2 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the month with the shortest days in Sacramento?

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

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

In Sacramento, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December in Sacramento?

On the first day of December in Sacramento, sunrise is at 7:11 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:49 pm EST.

How many hours of sunshine does Sacramento have in December?

In Sacramento, Pennsylvania, the average sunshine duration in December is 4.3h.

What is the month with the lowest UV index in Sacramento?

The months with the lowest UV index in Sacramento, 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 Sacramento?

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

Average temperature in December - Sacramento, PA
  • Average high temperature in December: 39.2°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 (32.9°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in December
Sacramento, PA

Average pressure in December - Sacramento, 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).

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Average wind speed in December
Sacramento, PA

Average wind speed in December - Sacramento, PA
  • Average wind speed in December: 7.7mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Sacramento, PA

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

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).

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Average rainfall in December
Sacramento, PA

Average rainfall in December - Sacramento, PA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in December
Sacramento, PA

Average rainfall days in December - Sacramento, PA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in December
Sacramento, PA

Average snowfall in December - Sacramento, PA
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Sacramento, PA

Average snowfall days in December - Sacramento, PA
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is January (6.8 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
Sacramento, PA

Average daylight in December / Average sunshine in December - Sacramento, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in December
Sacramento, PA

Average sunshine days in December - Sacramento, PA
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (14.6 days).

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Average UV index in December
Sacramento, PA

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

The month with the highest UV index is June (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
Sacramento, PA

Average cloud cover in December - Sacramento, PA
  • Average cloud cover in December: 54

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in December
Sacramento, PA

Average visibility in December - Sacramento, PA
  • Average visibility in December: 6mi

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

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Sacramento, Pennsylvania, USA

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