December weather forecast
Lumberville, PA

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Weather in December

December, the first month of the winter in Lumberville, is also an icy month, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 42.4°F (5.8°C).

Temperature

Lumberville's weather in December involves a decrease in the average high-temperature, moving down from November's cool 51.4°F (10.8°C) to an icy 42.4°F (5.8°C). In Lumberville, December's nights observe an average temperature dip to a freezing cold 30.7°F (-0.7°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Lumberville, in December, it is raining for 11.3 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 158.5 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Lumberville, in December, snow falls for 3.7 days, with typically accumulated 1.42" (36mm) of snow. Throughout the year, there are 23 snowfall days, and 9.45" (240mm) 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 the month, sunrise is at 7:04 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:43 pm EST.

Sunshine

The average sunshine in December is 4.9h.

UV index

The months with the lowest UV index in Lumberville are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The average high-temperature, in December, in Lumberville, is 42.4°F (5.8°C), while the average low-temperature is 30.7°F (-0.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

How much does it rain in December?

In Lumberville, in December, it is raining for 11.3 days, with typically 2.87" (73mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 3.7 days. Throughout December, 1.42" (36mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 21min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:04 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:43 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.9h.

What is the month with 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 Lumberville, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Lumberville, PA

Average temperature in December - Lumberville, PA
  • Average high temperature in December: 42.4°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Lumberville, PA

Average pressure in December - Lumberville, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Lumberville, PA

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

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Lumberville, PA

Average humidity in December - Lumberville, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in December
Lumberville, PA

Average rainfall in December - Lumberville, PA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Lumberville, PA

Average rainfall days in December - Lumberville, PA
  • Average rainfall days in December: 11.3 days

The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in December
Lumberville, PA

Average snowfall in December - Lumberville, PA
  • Average snowfall in December: 1.42"

The month with the highest snowfall is March (2.91").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Lumberville, PA

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

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Lumberville, 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 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 42min).

Average sunshine days in December
Lumberville, PA

Average sunshine days in December - Lumberville, PA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in December
Lumberville, PA

Average UV index in December - Lumberville, 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).

Average cloud cover in December
Lumberville, PA

Average cloud cover in December - Lumberville, PA
  • Average cloud cover in December: 48

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Lumberville, PA

Average visibility in December - Lumberville, 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).

Lumberville, Pennsylvania, USA

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