December weather forecast
Susquehanna Trails, PA

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Weather in December

The first month of the winter, December, is also an icy month in Susquehanna Trails, Pennsylvania, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 31.1°F (-0.5°C).

Temperature

As December arrives, Susquehanna Trails's weather displays a minor decrease in high-temperatures, transitioning from November's cool 51.1°F (10.6°C) to a cold 42.4°F (5.8°C). In December, the temperature in Susquehanna Trails drops to an average of 31.1°F (-0.5°C) at night.

Humidity

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

Rainfall

In Susquehanna Trails, in December, during 10.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Susquehanna Trails, during the entire year, the rain falls for 156.5 days and collects up to 28.74" (730mm) of precipitation.

Snowfall

Months with snowfall in Susquehanna Trails are January through April, October through December. In December, it is snowing for 3 days. Throughout December, 1.26" (32mm) of snow is accumulated. In Susquehanna Trails, during the entire year, snow falls for 20.3 days and aggregates up to 11.54" (293mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Susquehanna Trails, Pennsylvania.
On the first day of December in Susquehanna Trails, sunrise is at 7:08 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:51 pm EST.

Sunshine

In Susquehanna Trails, the average sunshine in December is 5h.

UV index

January, February, 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 minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Experience reduced UV exposure by about half when donning a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold does it get in Susquehanna Trails in December?

The high-temperature during December is 42.4°F (5.8°C) and the low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in December in Susquehanna Trails?

The average relative humidity in December is 79%.

How much does it rain in Susquehanna Trails in December?

In December, in Susquehanna Trails, the rain falls for 10.5 days. Throughout December, 2.13" (54mm) of precipitation is accumulated.

How many days does it snow in December in Susquehanna Trails?

In December, in Susquehanna Trails, Pennsylvania, it is snowing for 3 days. Throughout December, 1.26" (32mm) of snow is accumulated.

What is the month with the shortest days in Susquehanna Trails?

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

How many hours of daylight does Susquehanna Trails have in December?

In Susquehanna Trails, the average day length in December is 9h and 25min.

When are sunrise and sunset in December in Susquehanna Trails?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:41 pm. On the last day of the month, in Susquehanna Trails, Pennsylvania, sunrise is at 7:26 am and sunset at 4:51 pm EST.

How long on average sun shines in December in Susquehanna Trails?

In Susquehanna Trails, the average sunshine duration in December is 5h.

When is the lowest UV index in Susquehanna Trails?

The months with the lowest UV index in Susquehanna Trails, Pennsylvania, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Susquehanna Trails?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Susquehanna Trails, PA

Average temperature in December - Susquehanna Trails, PA
  • Average high temperature in December: 42.4°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 (36°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in December
Susquehanna Trails, PA

Average pressure in December - Susquehanna Trails, 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
Susquehanna Trails, PA

Average wind speed in December - Susquehanna Trails, PA
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Susquehanna Trails, PA

Average humidity in December - Susquehanna Trails, PA
  • Average humidity in December: 79%

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

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Average rainfall in December
Susquehanna Trails, PA

Average rainfall in December - Susquehanna Trails, PA
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is February (1.89").

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Average rainfall days in December
Susquehanna Trails, PA

Average rainfall days in December - Susquehanna Trails, PA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.4 days).

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Average snowfall in December
Susquehanna Trails, PA

Average snowfall in December - Susquehanna Trails, PA
  • Average snowfall in December: 1.26"

The month with the highest snowfall is March (4.02").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Susquehanna Trails, PA

Average snowfall days in December - Susquehanna Trails, PA
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Susquehanna Trails, PA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 0min

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).

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Average sunshine days in December
Susquehanna Trails, PA

Average sunshine days in December - Susquehanna Trails, PA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in December
Susquehanna Trails, PA

Average UV index in December - Susquehanna Trails, 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, November and December (UV index 2).

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Average cloud cover in December
Susquehanna Trails, PA

Average cloud cover in December - Susquehanna Trails, PA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Susquehanna Trails, PA

Average visibility in December - Susquehanna Trails, PA
  • Average visibility in December: 6mi

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

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Susquehanna Trails, Pennsylvania, USA

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