December weather forecast
Ruchsville, PA

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Weather in December

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

Temperature

Onset of December comes with a temperature decline, the average high falling from a chilly 49.8°F (9.9°C) in November to a cold 40.1°F (4.5°C). Ruchsville usually reports an average low-temperature of 28.9°F (-1.7°C) during the month of December.

Humidity

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

Rainfall

In Ruchsville, in December, it is raining for 9.2 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 145.1 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, 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

With an average of 9h and 18min of daylight, December has the shortest days of the year.
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 Ruchsville, 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

Is it cold during December?

The average high-temperature and low-temperature in Ruchsville during December are 40.1°F (4.5°C) and 28.9°F (-1.7°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How many days does it rain in December?

In Ruchsville, in December, during 9.2 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

How much does it snow in December?

In Ruchsville, Pennsylvania, in December, snow falls for 2.5 days, with typically accumulated 2.28" (58mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Ruchsville have in December?

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

When are sunrise and sunset in December?

On the first day of December, 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 Ruchsville have in December?

In December, the average sunshine duration is 4.7h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index 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
Ruchsville, PA

Average temperature in December - Ruchsville, 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).

Average pressure in December
Ruchsville, PA

Average pressure in December - Ruchsville, 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
Ruchsville, PA

Average wind speed in December - Ruchsville, 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).

Average humidity in December
Ruchsville, PA

Average humidity in December - Ruchsville, 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%).

Average rainfall in December
Ruchsville, PA

Average rainfall in December - Ruchsville, 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").

Average rainfall days in December
Ruchsville, PA

Average rainfall days in December - Ruchsville, 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).

Average snowfall in December
Ruchsville, PA

Average snowfall in December - Ruchsville, 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").

Average snowfall days in December
Ruchsville, PA

Average snowfall days in December - Ruchsville, 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).

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

Average daylight in December / Average sunshine in December - Ruchsville, 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
Ruchsville, PA

Average sunshine days in December - Ruchsville, 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).

Average UV index in December
Ruchsville, PA

Average UV index in December - Ruchsville, 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
Ruchsville, PA

Average cloud cover in December - Ruchsville, 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).

Average visibility in December
Ruchsville, PA

Average visibility in December - Ruchsville, 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).

Ruchsville, Pennsylvania, USA

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