December weather forecast
Devault, PA

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Weather in December

The first month of the winter, December, is also an icy month in Devault, Pennsylvania, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 42.3°F (5.7°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from a fresh 51.4°F (10.8°C) in November to a cold 42.3°F (5.7°C). Devault in December experiences a low-temperature average of 31.1°F (-0.5°C).

Humidity

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

Rainfall

In Devault, during December, the rain falls for 7.7 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, in Devault, Pennsylvania, there are 124.6 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Devault. In Devault, in December, during 2.2 snowfall days, 0.79" (20mm) of snow is typically accumulated. In Devault, during the entire year, snow falls for 18.5 days and aggregates up to 5.51" (140mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December in Devault, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:46 pm EST.

Sunshine

In Devault, the average sunshine in December is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Devault. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. 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. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

How cold is December in Devault?

During December, Devault experiences an average high-temperature of 42.3°F (5.7°C) and a low-temperature of 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in December in Devault?

In December, the average relative humidity is 78%.

How much does it rain in Devault in December?

In Devault, during December, the rain falls for 7.7 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How much does it snow in Devault in December?

In Devault, during December, snow falls for 2.2 days and regularly aggregates up to 0.79" (20mm) of snow.

What is the month with the shortest days in Devault?

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

How many hours of daylight does Devault have in December?

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

What time are sunrise and sunset in December in Devault?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, in Devault, sunrise is at 7:24 am and sunset at 4:46 pm EST.

How many hours of sunshine does Devault have in December?

The average sunshine duration in December in Devault, Pennsylvania, is 4.8h.

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

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

What is the UV index reading in December in Devault?

The average daily maximum UV index in December in Devault, Pennsylvania, is 2. A UV Index estimate of 2, and below, represents 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
Devault, PA

Average temperature in December - Devault, PA
  • Average high temperature in December: 42.3°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: 31.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Devault, PA

Average pressure in December - Devault, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Devault, PA

Average wind speed in December - Devault, PA
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Devault, PA

Average humidity in December - Devault, 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 (73%).

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Average rainfall in December
Devault, PA

Average rainfall in December - Devault, PA
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in December
Devault, PA

Average rainfall days in December - Devault, PA
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (5 days).

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Average snowfall in December
Devault, PA

Average snowfall in December - Devault, PA
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.57").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Devault, PA

Average snowfall days in December - Devault, PA
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is January (5.4 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
Devault, PA

Average daylight in December / Average sunshine in December - Devault, 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 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 30min).

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Average sunshine days in December
Devault, PA

Average sunshine days in December - Devault, PA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (13.3 days).

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Average UV index in December
Devault, PA

Average UV index in December - Devault, 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
Devault, PA

Average cloud cover in December - Devault, 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
Devault, PA

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

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