December weather forecast
Ruppsville, PA

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Weather in December

December, the first month of the winter in Ruppsville, is also an icy month, with an average temperature ranging between min 28.9°F (-1.7°C) and max 40.3°F (4.6°C).

Temperature

December's arrival corresponds with a decrease in average high-temperatures, from November's fresh 50°F (10°C) to a cold 40.3°F (4.6°C). During December, Ruppsville experiences an average low-temperature of 28.9°F (-1.7°C) at night.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In December, the rain falls for 11.2 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 155.8 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ruppsville are January through May, October through December. In Ruppsville, Pennsylvania, during December, snow falls for 5 days and regularly aggregates up to 2.36" (60mm) of snow. In Ruppsville, during the entire year, snow falls for 29.4 days and aggregates up to 15.87" (403mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Ruppsville, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.

Sunshine

The average sunshine in December is 4.7h.

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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

Is December cold?

During December, Ruppsville experiences an average high-temperature of 40.3°F (4.6°C) and a low-temperature of 28.9°F (-1.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86°F (30°C).

What is the average humidity in December?

In Ruppsville, the average relative humidity in December is 80%.

How many days does it rain in December?

In Ruppsville, in December, during 11.2 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

How much does it snow in December?

In Ruppsville, Pennsylvania, in December, snow falls for 5 days, with typically accumulated 2.36" (60mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Ruppsville have in December?

The average day length in December is 9h and 20min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.7h.

When is the lowest UV index?

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

What is the UV index reading in December in Ruppsville?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from 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
Ruppsville, PA

Average temperature in December - Ruppsville, PA
  • Average high temperature in December: 40.3°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 (34.3°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).

Average pressure in December
Ruppsville, PA

Average pressure in December - Ruppsville, 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
Ruppsville, PA

Average wind speed in December - Ruppsville, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Ruppsville, PA

Average humidity in December - Ruppsville, PA
  • Average humidity in December: 80%

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

Average rainfall in December
Ruppsville, PA

Average rainfall in December - Ruppsville, PA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Ruppsville, PA

Average rainfall days in December - Ruppsville, PA
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in December
Ruppsville, PA

Average snowfall in December - Ruppsville, PA
  • Average snowfall in December: 2.36"

The month with the highest snowfall is March (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Ruppsville, PA

Average snowfall days in December - Ruppsville, PA
  • Average snowfall days in December: 5 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Ruppsville, 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).

Average sunshine days in December
Ruppsville, PA

Average sunshine days in December - Ruppsville, PA
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is April (11.2 days).

Average UV index in December
Ruppsville, PA

Average UV index in December - Ruppsville, 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).

Average cloud cover in December
Ruppsville, PA

Average cloud cover in December - Ruppsville, 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 33).

Average visibility in December
Ruppsville, PA

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

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

Ruppsville, Pennsylvania, USA

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