December weather forecast
Glenville, PA

Weather in December

December, the first month of the winter in Glenville, is also a wintry month, with an average temperature varying between 30.7°F (-0.7°C) and 42.3°F (5.7°C).

Temperature

In December, the average high-temperature marginally drops from a cool 51.3°F (10.7°C) in November to a cold 42.3°F (5.7°C). In Glenville, in December, the average low-temperature is 30.7°F (-0.7°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Glenville, during December, the rain falls for 10.7 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Glenville, Pennsylvania, during the entire year, the rain falls for 160.1 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Glenville, during December, snow falls for 4.2 days and regularly aggregates up to 1.69" (43mm) of snow. Throughout the year, there are 22 snowfall days, and 11.85" (301mm) of snow is accumulated.

Daylight

The month with the shortest days in Glenville is December, with an average of 9h and 25min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of December, in Glenville, sunrise is at 7:28 am and sunset at 4:52 pm EST.

Sunshine

In December, the average sunshine is 5h.

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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Glenville?

In December, in Glenville, Pennsylvania, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 30.7°F (-0.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December in Glenville?

The average relative humidity in December in Glenville, Pennsylvania, is 78%.

How many days does it rain in December in Glenville?

In December, the rain falls for 10.7 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How much does it snow in Glenville in December?

In Glenville, Pennsylvania, during December, snow falls for 4.2 days and regularly aggregates up to 1.69" (43mm) of snow.

What is the month with the shortest days in Glenville?

December has the shortest days of the year in Glenville, with an average of 9h and 25min of daylight.

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

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

When are sunrise and sunset in December in Glenville?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of the month, in Glenville, sunrise is at 7:28 am and sunset at 4:52 pm EST.

How many hours of sunshine does Glenville have in December?

In December, the average sunshine duration in Glenville is 5h.

What are the months with the lowest UV index in Glenville?

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

What is the UV index intensity in December in Glenville?

In Glenville, Pennsylvania, 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 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
Glenville, PA

Average temperature in December - Glenville, PA
  • Average high temperature in December: 42.3°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 (36.3°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in December
Glenville, PA

Average pressure in December - Glenville, 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 (29.94"Hg).

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Average wind speed in December
Glenville, PA

Average wind speed in December - Glenville, PA
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in December
Glenville, PA

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

The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April, July and November (76%).

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Average rainfall in December
Glenville, PA

Average rainfall in December - Glenville, PA
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.93").

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Average rainfall days in December
Glenville, PA

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

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in December
Glenville, PA

Average snowfall in December - Glenville, PA
  • Average snowfall in December: 1.69"

The month with the highest snowfall is March (3.62").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Glenville, PA

Average snowfall days in December - Glenville, PA
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Glenville, PA
  • Average daylight in December: 9h and 25min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Glenville, PA

Average sunshine days in December - Glenville, PA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in December
Glenville, PA

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

The months with the highest UV index are June, July and August (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
Glenville, PA

Average cloud cover in December - Glenville, PA
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Glenville, PA

Average visibility in December - Glenville, 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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