December weather forecast
Hanover, PA

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Weather in December

The first month of the winter, December, is still a cold month in Hanover, Pennsylvania, with an average temperature fluctuating between 29.8°F (-1.2°C) and 42.1°F (5.6°C).

Temperature

As November makes way for December, Hanover's average high-temperature eases from a cool 50.9°F (10.5°C) to an icy 42.1°F (5.6°C). Hanover, in December, witnesses an average low-temperature of 29.8°F (-1.2°C).

Humidity

The average relative humidity in December in Hanover, Pennsylvania, is 79%.

Rainfall

In December, the rain falls for 8.3 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Hanover, during the entire year, the rain falls for 133.6 days and collects up to 17.52" (445mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, in Hanover, it is snowing for 3.7 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, in Hanover, there are 19.9 snowfall days, and 7.24" (184mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:43 pm. On the last day of December, in Hanover, sunrise is at 7:29 am and sunset at 4:53 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index in Hanover are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Hanover?

In December, in Hanover, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 29.8°F (-1.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 86°F (30°C).

What is the average humidity in December in Hanover?

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

How many days does it rain in December in Hanover?

In Hanover, in December, during 8.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How much does it snow in Hanover in December?

In December, in Hanover, it is snowing for 3.7 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in Hanover?

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

How many hours of daylight does Hanover have in December?

In December, the average day length is 9h and 25min.

What time are sunrise and sunset in December in Hanover?

On the first day of December in Hanover, sunrise is at 7:10 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:53 pm EST.

How many hours of sunshine does Hanover have in December?

The average sunshine duration in December in Hanover, Pennsylvania, is 4.9h.

What is the month with the lowest UV index in Hanover?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Hanover?

In Hanover, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Hanover, PA

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

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in December
Hanover, PA

Average pressure in December - Hanover, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Hanover, PA

Average wind speed in December - Hanover, PA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Hanover, PA

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
Hanover, PA

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

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in December
Hanover, PA

Average rainfall days in December - Hanover, PA
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in December
Hanover, PA

Average snowfall in December - Hanover, PA
  • Average snowfall in December: 1.18"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Hanover, PA

Average snowfall days in December - Hanover, PA
  • Average snowfall days in December: 3.7 days

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

Average daylight in December / Average sunshine in December - Hanover, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Hanover, PA

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

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in December
Hanover, PA

Average UV index in December - Hanover, 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).

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Average cloud cover in December
Hanover, PA

Average cloud cover in December - Hanover, PA
  • Average cloud cover in December: 47

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Hanover, PA

Average visibility in December - Hanover, 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).

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Hanover, Pennsylvania, USA

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