December weather forecast
Swedesburg, PA

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Weather in December

December, the first month of the winter in Swedesburg, is also a wintry month, with an average temperature ranging between min 30.9°F (-0.6°C) and max 42.6°F (5.9°C).

Temperature

In Swedesburg, the beginning of December is marked by a lowered average high-temperature, shifting from November's fresh 51.6°F (10.9°C) to a cold 42.6°F (5.9°C). Swedesburg, in December, experiences an average temperature of 30.9°F (-0.6°C) at night.

Humidity

In December, the average relative humidity in Swedesburg is 78%.

Rainfall

In Swedesburg, in December, it is raining for 8.6 days, with typically 1.22" (31mm) of accumulated precipitation. In Swedesburg, during the entire year, the rain falls for 138.2 days and collects up to 15.59" (396mm) of precipitation.

Snowfall

Months with snowfall are January through March, May and December. December is the first month it typically snows. Throughout December, in the average 2.6 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 15.8 snowfall days, and 2.13" (54mm) 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 7:04 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:45 pm EST.

Sunshine

In Swedesburg, the average sunshine in December is 5h.

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 reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in Swedesburg in December?

During December, Swedesburg experiences an average high-temperature of 42.6°F (5.9°C) and a low-temperature of 30.9°F (-0.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 89.6°F (32°C).

What is the average humidity in December in Swedesburg?

In December, the average relative humidity is 78%.

How much does it rain in December?

In December, in Swedesburg, the rain falls for 8.6 days. Throughout December, 1.22" (31mm) of precipitation is accumulated.

When does it start to snow in Swedesburg?

December is the first month it typically snows. Throughout December, in the average 2.6 snowfall days, it receives 0.35" (9mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Swedesburg have in December?

The average day length in December is 9h and 23min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:04 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:45 pm EST.

How long on average sun shines in December?

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

What is the month 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.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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
Swedesburg, PA

Average temperature in December - Swedesburg, PA
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Swedesburg, PA

Average pressure in December - Swedesburg, 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
Swedesburg, PA

Average wind speed in December - Swedesburg, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Swedesburg, PA

Average humidity in December - Swedesburg, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in December
Swedesburg, PA

Average rainfall in December - Swedesburg, PA
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in December
Swedesburg, PA

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

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).

Average snowfall in December
Swedesburg, PA

Average snowfall in December - Swedesburg, PA
  • Average snowfall in December: 0.35"

The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in December
Swedesburg, PA

Average snowfall days in December - Swedesburg, PA
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Swedesburg, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Swedesburg, PA

Average sunshine days in December - Swedesburg, PA
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).

Average UV index in December
Swedesburg, PA

Average UV index in December - Swedesburg, 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).

Average cloud cover in December
Swedesburg, PA

Average cloud cover in December - Swedesburg, 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).

Average visibility in December
Swedesburg, PA

Average visibility in December - Swedesburg, 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).

Swedesburg, Pennsylvania, USA

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