December weather forecast
Conestoga, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Conestoga, Pennsylvania, with an average temperature varying between 42.1°F (5.6°C) and 30°F (-1.1°C).

Temperature

A shift in Conestoga's weather is observed as November turns into December, with the average high temperature reducing from a cool 51.3°F (10.7°C) to an icy 42.1°F (5.6°C). The temperature in Conestoga, Pennsylvania, lowers to an average of 30°F (-1.1°C) during December nights.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Conestoga, in December, it is raining for 10.7 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, in Conestoga, there are 153.4 rainfall days, and 28.27" (718mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Conestoga, Pennsylvania. In Conestoga, during December, snow falls for 3.5 days and regularly aggregates up to 1.22" (31mm) of snow. In Conestoga, Pennsylvania, during the entire year, snow falls for 20.8 days and aggregates up to 11.46" (291mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:40 pm. On the last day of December, in Conestoga, Pennsylvania, sunrise is at 7:26 am and sunset at 4:50 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold does it get in Conestoga in December?

In Conestoga, 42.1°F (5.6°C) is the average high-temperature and 30°F (-1.1°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 86°F (30°C).

What is the average humidity in December in Conestoga?

In December, the average relative humidity in Conestoga, Pennsylvania, is 79%.

How much does it rain in Conestoga in December?

In Conestoga, Pennsylvania, in December, it is raining for 10.7 days, with typically 2.09" (53mm) of accumulated precipitation.

How much does it snow in Conestoga in December?

In Conestoga, Pennsylvania, in December, during 3.5 snowfall days, 1.22" (31mm) of snow is typically accumulated.

What is the month with the shortest days in Conestoga?

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

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

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

What time are sunrise and sunset in December in Conestoga?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:40 pm. On the last day of the month, in Conestoga, sunrise is at 7:26 am and sunset at 4:50 pm EST.

How long on average sun shines in December in Conestoga?

The average sunshine duration in December in Conestoga, Pennsylvania, is 4.7h.

When is the lowest UV index in Conestoga?

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

How high is the UV index in December in Conestoga?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Conestoga, PA

Average temperature in December - Conestoga, PA
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in December
Conestoga, PA

Average pressure in December - Conestoga, 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
Conestoga, PA

Average wind speed in December - Conestoga, PA
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in December
Conestoga, PA

Average humidity in December - Conestoga, PA
  • Average humidity in December: 79%

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

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Average rainfall in December
Conestoga, PA

Average rainfall in December - Conestoga, PA
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.35").
The driest months (with the least rainfall) are February and September (1.89").

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Average rainfall days in December
Conestoga, PA

Average rainfall days in December - Conestoga, PA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (8 days).

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Average snowfall in December
Conestoga, PA

Average snowfall in December - Conestoga, PA
  • Average snowfall in December: 1.22"

The month with the highest snowfall is March (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Conestoga, PA

Average snowfall days in December - Conestoga, PA
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Conestoga, 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: 4h and 4min

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
Conestoga, PA

Average sunshine days in December - Conestoga, PA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in December
Conestoga, PA

Average UV index in December - Conestoga, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June and July (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
Conestoga, PA

Average cloud cover in December - Conestoga, PA
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in December
Conestoga, PA

Average visibility in December - Conestoga, 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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Conestoga, Pennsylvania, USA

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