December weather forecast
Reiffton, PA

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Weather in December

The first month of the winter, December, is also an icy month in Reiffton, Pennsylvania, with an average temperature ranging between max 41.4°F (5.2°C) and min 30°F (-1.1°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a cool 50.2°F (10.1°C) in November to a cold 41.4°F (5.2°C). Reiffton in December anticipates an average nighttime temperature of 30°F (-1.1°C).

Humidity

The average relative humidity in December in Reiffton is 80%.

Rainfall

In Reiffton, during December, the rain falls for 8.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Reiffton, during the entire year, the rain falls for 129 days and collects up to 13.5" (343mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Reiffton, during December, snow falls for 3.2 days and regularly aggregates up to 0.39" (10mm) of snow. Throughout the year, there are 19.4 snowfall days, and 4.45" (113mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:37 pm. On the last day of December, in Reiffton, sunrise is at 7:26 am and sunset at 4:47 pm EST.

Sunshine

The average sunshine in December is 4.8h.

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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Reiffton, is 41.4°F (5.2°C), while the low-temperature averages to 30°F (-1.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in December?

In Reiffton, in December, it is raining for 8.4 days, with typically 0.91" (23mm) of accumulated precipitation.

How many days does it snow in December?

In Reiffton, Pennsylvania, during December, snow falls for 3.2 days and regularly aggregates up to 0.39" (10mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 21min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.

How many hours of sunshine does Reiffton have in December?

The average sunshine duration in December is 4.8h.

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

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 intensity in December in Reiffton?

In December, the average daily maximum UV index in Reiffton is 2. A UV Index value of 2, and less, symbolizes 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
Reiffton, PA

Average temperature in December - Reiffton, PA
  • Average high temperature in December: 41.4°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Reiffton, PA

Average pressure in December - Reiffton, 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).

Average wind speed in December
Reiffton, PA

Average wind speed in December - Reiffton, PA
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Reiffton, PA

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

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Reiffton, PA

Average rainfall in December - Reiffton, PA
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in December
Reiffton, PA

Average rainfall days in December - Reiffton, PA
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in December
Reiffton, PA

Average snowfall in December - Reiffton, PA
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Reiffton, PA

Average snowfall days in December - Reiffton, PA
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Reiffton, 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 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Reiffton, PA

Average sunshine days in December - Reiffton, PA
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in December
Reiffton, PA

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

The months with the highest UV index are May, 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
Reiffton, PA

Average cloud cover in December - Reiffton, PA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Reiffton, PA

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

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

Reiffton, Pennsylvania, USA

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