December weather forecast
Flinton, PA

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Weather in December

December, the first month of the winter in Flinton, is still a cold month, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.6°F (-3°C).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 46.2°F (7.9°C) to a cold 36.5°F (2.5°C). The average temperature during December nights dips to a freezing cold 26.6°F (-3°C).

Humidity

In December, the average relative humidity in Flinton is 85%.

Rainfall

In December, in Flinton, the rain falls for 10.6 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Flinton, there are 173.2 rainfall days, and 32.44" (824mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Flinton, it is snowing for 12.7 days. Throughout December, 5.98" (152mm) of snow is accumulated. Throughout the year, there are 65 snowfall days, and 32.28" (820mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Flinton, sunrise is at 7:19 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:56 pm EST.

Sunshine

The average sunshine in December is 3.4h.

UV index

December is the month with the lowest UV index in Flinton, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Flinton in December?

In December, in Flinton, the average high-temperature is 36.5°F (2.5°C), and the average low-temperature is 26.6°F (-3°C).

What is the average humidity in December in Flinton?

The average relative humidity in December is 85%.

How many days does it rain in December in Flinton?

In Flinton, in December, during 10.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How much does it snow in Flinton in December?

In Flinton, Pennsylvania, during December, snow falls for 12.7 days and regularly aggregates up to 5.98" (152mm) of snow.

What is the month with the shortest days in Flinton?

The month with the shortest days in Flinton is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Flinton have in December?

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

When are sunrise and sunset in December in Flinton?

On the first day of December in Flinton, sunrise is at 7:19 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:56 pm EST.

How long on average sun shines in December in Flinton?

In December, the average sunshine duration in Flinton, Pennsylvania, is 3.4h.

When is the lowest UV index in Flinton?

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

How high is the UV index in December in Flinton?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health threat 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
Flinton, PA

Average temperature in December - Flinton, PA
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in December
Flinton, PA

Average pressure in December - Flinton, 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).

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Average wind speed in December
Flinton, PA

Average wind speed in December - Flinton, PA
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Flinton, PA

Average humidity in December - Flinton, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (78%).

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Average rainfall in December
Flinton, PA

Average rainfall in December - Flinton, PA
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in December
Flinton, PA

Average rainfall days in December - Flinton, PA
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in December
Flinton, PA

Average snowfall in December - Flinton, PA
  • Average snowfall in December: 5.98"

The month with the highest snowfall is January (7.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Flinton, PA

Average snowfall days in December - Flinton, PA
  • Average snowfall days in December: 12.7 days

The month with the highest number of snowfall days is January (16.7 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
Flinton, PA

Average daylight in December / Average sunshine in December - Flinton, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
Flinton, PA

Average sunshine days in December - Flinton, PA
  • Average sunshine days in December: 10.2 days

The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in December
Flinton, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Flinton, PA

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

The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in December
Flinton, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

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Flinton, Pennsylvania, USA

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