December weather forecast
Freeport, PA

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Weather in December

The first month of the winter, December, is still a cold month in Freeport, Pennsylvania, with an average temperature varying between 27.3°F (-2.6°C) and 38.7°F (3.7°C).

Temperature

During Freeport's transition into December, the average high-temperature lessens, moving from a frosty 48.4°F (9.1°C) in November to a cold 38.7°F (3.7°C). In December, the average low-temperature in Freeport records at a subzero cold 27.3°F (-2.6°C) during the nights.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Freeport, Pennsylvania, during December, the rain falls for 10.1 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 147.1 rainfall days, and 18.54" (471mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 9.1 days. Throughout December, 2.2" (56mm) of snow is accumulated. In Freeport, during the entire year, snow falls for 45.9 days and aggregates up to 11.3" (287mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:01 pm EST.

Sunshine

In Freeport, the average sunshine in December is 3.1h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is December?

In December, in Freeport, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 27.3°F (-2.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

How many days does it rain in December?

In Freeport, in December, it is raining for 10.1 days, with typically 1.38" (35mm) of accumulated precipitation.

How many days does it snow in December?

In Freeport, in December, during 9.1 snowfall days, 2.2" (56mm) 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.

How many hours of daylight does Freeport have in December?

In Freeport, the average day length in December is 9h and 19min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:01 pm EST.

How many hours of sunshine does Freeport have in December?

In Freeport, the average sunshine duration in December is 3.1h.

When is the lowest UV index?

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

What is the UV index reading in December in Freeport?

In December, the average daily maximum UV index is 1. A UV Index 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
Freeport, PA

Average temperature in December - Freeport, PA
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Freeport, PA

Average pressure in December - Freeport, 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 (29.95"Hg).

Average wind speed in December
Freeport, PA

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

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Freeport, PA

Average humidity in December - Freeport, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Freeport, PA

Average rainfall in December - Freeport, PA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in December
Freeport, PA

Average rainfall days in December - Freeport, PA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are January and February (7.8 days).

Average snowfall in December
Freeport, PA

Average snowfall in December - Freeport, PA
  • Average snowfall in December: 2.2"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Freeport, PA

Average snowfall days in December - Freeport, PA
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Freeport, 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 18min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Freeport, PA

Average sunshine days in December - Freeport, PA
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10 days).

Average UV index in December
Freeport, PA

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Freeport, PA

Average cloud cover in December - Freeport, PA
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Freeport, PA

Average visibility in December - Freeport, PA
  • Average visibility in December: 5mi

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

Freeport, Pennsylvania, USA

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