December weather forecast
Rimersburg, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Rimersburg, Pennsylvania, with an average temperature ranging between max 36.9°F (2.7°C) and min 26.1°F (-3.3°C).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a chilly 46.8°F (8.2°C) in November to a cold 36.9°F (2.7°C). Rimersburg temperatures generally rest at a low of 26.1°F (-3.3°C) during the December nights.

Humidity

In Rimersburg, the average relative humidity in December is 86%.

Rainfall

In Rimersburg, during December, the rain falls for 11.3 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 176.8 rainfall days, and 34.57" (878mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Rimersburg, in December, snow falls for 12.3 days, with typically accumulated 4.84" (123mm) of snow. In Rimersburg, during the entire year, snow falls for 63.1 days and aggregates up to 25.75" (654mm) of snow.

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 7:24 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:59 pm EST.

Sunshine

In December, the average sunshine is 2.7h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Rimersburg, is 36.9°F (2.7°C), while the low-temperature averages to 26.1°F (-3.3°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 86°F (30°C).

What is the average humidity in December?

In Rimersburg, the average relative humidity in December is 86%.

How much does it rain in December?

In Rimersburg, Pennsylvania, during December, the rain falls for 11.3 days and regularly aggregates up to 2.52" (64mm) of precipitation.

How many days does it snow in December?

In Rimersburg, in December, during 12.3 snowfall days, 4.84" (123mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In Rimersburg, the average day length in December is 9h and 17min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:59 pm EST.

How long on average sun shines in December?

In Rimersburg, the average sunshine duration in December is 2.7h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Rimersburg, PA

Average temperature in December - Rimersburg, PA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 26.1°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

Average pressure in December
Rimersburg, PA

Average pressure in December - Rimersburg, PA
  • Average pressure in December: 30.1"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
Rimersburg, PA

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

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Rimersburg, PA

Average humidity in December - Rimersburg, PA
  • Average humidity in December: 86%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (78%).

Average rainfall in December
Rimersburg, PA

Average rainfall in December - Rimersburg, PA
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Rimersburg, PA

Average rainfall days in December - Rimersburg, PA
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in December
Rimersburg, PA

Average snowfall in December - Rimersburg, PA
  • Average snowfall in December: 4.84"

The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rimersburg, PA

Average snowfall days in December - Rimersburg, PA
  • Average snowfall days in December: 12.3 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rimersburg, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in December
Rimersburg, PA

Average sunshine days in December - Rimersburg, PA
  • Average sunshine days in December: 11.5 days

The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in December
Rimersburg, PA

Average UV index in December - Rimersburg, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Rimersburg, PA

Average cloud cover in December - Rimersburg, PA
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in December
Rimersburg, PA

Average visibility in December - Rimersburg, PA
  • Average visibility in December: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

Rimersburg, Pennsylvania, USA

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