December weather forecast
Suplee, PA

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Weather in December

The first month of the winter, December, is also an icy month in Suplee, Pennsylvania, with an average temperature fluctuating between 41.9°F (5.5°C) and 30.6°F (-0.8°C).

Temperature

Suplee's transition into December involves a shift in temperature, receding from a cool 50.9°F (10.5°C) in November to an icy 41.9°F (5.5°C). An average low-temperature of 30.6°F (-0.8°C) is observed during December nights.

Humidity

In Suplee, the average relative humidity in December is 79%.

Rainfall

In Suplee, Pennsylvania, in December, it is raining for 8.6 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, in Suplee, there are 145.6 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Suplee, in December, snow falls for 2 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, in Suplee, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.

Daylight

With an average of 9h and 24min 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 4:38 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:48 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

Is December cold in Suplee?

The average high-temperature, in December, in Suplee, is 41.9°F (5.5°C), while the average low-temperature is 30.6°F (-0.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 86°F (30°C).

What is the average humidity in December in Suplee?

In December, the average relative humidity in Suplee is 79%.

How many days does it rain in December in Suplee?

In Suplee, Pennsylvania, during December, the rain falls for 8.6 days and regularly aggregates up to 2.05" (52mm) of precipitation.

How many days does it snow in December in Suplee?

In December, it is snowing for 2 days. Throughout December, 1.54" (39mm) of snow is accumulated.

What is the month with the shortest days in Suplee?

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

How many hours of daylight does Suplee have in December?

In Suplee, Pennsylvania, the average day length in December is 9h and 23min.

What time are sunrise and sunset in December in Suplee?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:38 pm. On the last day of the month, in Suplee, sunrise is at 7:25 am and sunset at 4:48 pm EST.

How long on average sun shines in December in Suplee?

In Suplee, Pennsylvania, the average sunshine duration in December is 4.8h.

What are the months with the lowest UV index in Suplee?

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 Suplee?

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

Average temperature in December - Suplee, PA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

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Average pressure in December
Suplee, PA

Average pressure in December - Suplee, 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
Suplee, PA

Average wind speed in December - Suplee, PA
  • Average wind speed in December: 8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Suplee, PA

Average humidity in December - Suplee, PA
  • Average humidity in December: 79%

The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Suplee, PA

Average rainfall in December - Suplee, PA
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days in December
Suplee, PA

Average rainfall days in December - Suplee, PA
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Suplee, PA

Average snowfall in December - Suplee, PA
  • Average snowfall in December: 1.54"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Suplee, PA

Average snowfall days in December - Suplee, PA
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is February (4.8 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
Suplee, PA

Average daylight in December / Average sunshine in December - Suplee, 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 36min).

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Average sunshine days in December
Suplee, PA

Average sunshine days in December - Suplee, PA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in December
Suplee, PA

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

The months with the highest UV index are May, June, July and August (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
Suplee, PA

Average cloud cover in December - Suplee, 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 32).

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Average visibility in December
Suplee, PA

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

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

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Suplee, Pennsylvania, USA

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