December weather forecast
Hamburg, PA

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Weather in December

December, the first month of the winter in Hamburg, is also an icy month, with an average temperature varying between 28.6°F (-1.9°C) and 40.1°F (4.5°C).

Temperature

A shift in Hamburg's weather is observed as November turns into December, with the average high temperature reducing from a chilly 49.5°F (9.7°C) to an icy 40.1°F (4.5°C). In Hamburg, an average low-temperature of 28.6°F (-1.9°C) is recorded during December nights.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Hamburg, during December, the rain falls for 10.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Hamburg, during the entire year, the rain falls for 148.7 days and collects up to 26.42" (671mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Hamburg, in December, during 4.5 snowfall days, 1.38" (35mm) of snow is typically accumulated. Throughout the year, there are 26.2 snowfall days, and 13.58" (345mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:47 pm EST.

Sunshine

In Hamburg, the average sunshine in December is 4.6h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 2 in December translates into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 40.1°F (4.5°C) and a low-temperature of 28.6°F (-1.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in July is estimated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In Hamburg, in December, during 10.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Hamburg, during December, snow falls for 4.5 days and regularly aggregates up to 1.38" (35mm) of snow.

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.

What is the average length of the day in December?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, in Hamburg, sunrise is at 7:27 am and sunset at 4:47 pm EST.

How many hours of sunshine does Hamburg have in December?

The average sunshine duration in December is 4.6h.

When is the lowest UV index?

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

What is the UV index reading in December?

In Hamburg, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Hamburg, PA

Average temperature in December - Hamburg, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Hamburg, PA

Average pressure in December - Hamburg, PA
  • Average pressure in December: 30.09"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).

Average wind speed in December
Hamburg, PA

Average wind speed in December - Hamburg, PA
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Hamburg, PA

Average humidity in December - Hamburg, 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%).

Average rainfall in December
Hamburg, PA

Average rainfall in December - Hamburg, PA
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Hamburg, PA

Average rainfall days in December - Hamburg, PA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in December
Hamburg, PA

Average snowfall in December - Hamburg, PA
  • Average snowfall in December: 1.38"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Hamburg, PA

Average snowfall days in December - Hamburg, PA
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Hamburg, 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: 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 24min).

Average sunshine days in December
Hamburg, PA

Average sunshine days in December - Hamburg, PA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Hamburg, PA

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Hamburg, PA

Average cloud cover in December - Hamburg, 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 33).

Average visibility in December
Hamburg, PA

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

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

Hamburg, Pennsylvania, USA

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