December weather forecast
Klecknersville, PA

Weather in December

The first month of the winter, December, is still a cold month in Klecknersville, Pennsylvania, with an average temperature ranging between max 39°F (3.9°C) and min 28°F (-2.2°C).

Temperature

In December, the average high-temperature drops from a chilly 48.6°F (9.2°C) in November to a cold 39°F (3.9°C). The average low-temperature, in Klecknersville, is 28°F (-2.2°C).

Humidity

In December, the average relative humidity in Klecknersville is 81%.

Rainfall

In Klecknersville, Pennsylvania, in December, during 13.1 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 167 rainfall days, and 33.5" (851mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Klecknersville are January through May, October through December. In December, it is snowing for 6.1 days. Throughout December, 3.19" (81mm) of snow is accumulated. In Klecknersville, during the entire year, snow falls for 33.8 days and aggregates up to 17.91" (455mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 19min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:43 pm EST.

Sunshine

In Klecknersville, the average sunshine in December is 4.7h.

UV index

December is the month with the lowest UV index in Klecknersville, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Klecknersville?

The average high-temperature, in December, in Klecknersville, Pennsylvania, is 39°F (3.9°C), while the average low-temperature is 28°F (-2.2°C). in July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F (32°C).

What is the average humidity in December in Klecknersville?

In Klecknersville, the average relative humidity in December is 81%.

How much does it rain in Klecknersville in December?

In Klecknersville, in December, it is raining for 13.1 days, with typically 3.19" (81mm) of accumulated precipitation.

How much does it snow in Klecknersville in December?

In Klecknersville, during December, snow falls for 6.1 days and regularly aggregates up to 3.19" (81mm) of snow.

What is the month with the shortest days in Klecknersville?

The month with the shortest days in Klecknersville, Pennsylvania, is December, with an average of 9h and 19min of daylight.

What is the average length of the day in December in Klecknersville?

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

What time are sunrise and sunset in December in Klecknersville?

On the first day of December, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:43 pm EST.

How many hours of sunshine does Klecknersville have in December?

In Klecknersville, the average sunshine duration in December is 4.7h.

When is the lowest UV index in Klecknersville?

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

What is the UV index intensity in December in Klecknersville?

The average daily maximum UV index in December in Klecknersville is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Klecknersville, PA

Average temperature in December - Klecknersville, PA
  • Average high temperature in December: 39°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 (33.4°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in December
Klecknersville, PA

Average pressure in December - Klecknersville, 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).

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Average wind speed in December
Klecknersville, PA

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

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Klecknersville, PA

Average humidity in December - Klecknersville, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Klecknersville, PA

Average rainfall in December - Klecknersville, PA
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in December
Klecknersville, PA

Average rainfall days in December - Klecknersville, PA
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

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Average snowfall in December
Klecknersville, PA

Average snowfall in December - Klecknersville, PA
  • Average snowfall in December: 3.19"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Klecknersville, PA

Average snowfall days in December - Klecknersville, PA
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (9.6 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
Klecknersville, PA

Average daylight in December / Average sunshine in December - Klecknersville, PA
  • Average daylight in December: 9h and 19min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Klecknersville, PA

Average sunshine days in December - Klecknersville, PA
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in December
Klecknersville, PA

Average UV index in December - Klecknersville, 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
Klecknersville, PA

Average cloud cover in December - Klecknersville, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in December
Klecknersville, PA

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

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

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