December weather forecast
Upton, WV

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Weather in December

December, the first month of the winter in Upton, is also a wintry month, with an average temperature ranging between min 29.3°F (-1.5°C) and max 41.5°F (5.3°C).

Temperature

The move into December indicates a reduction in the average high-temperature, down from November's fresh 50.5°F (10.3°C) to a wintry 41.5°F (5.3°C). Throughout the month of December, Upton sees a steady low-temperature average of 29.3°F (-1.5°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, in Upton, the rain falls for 13.1 days. Throughout December, 3.35" (85mm) of precipitation is accumulated. Throughout the year, in Upton, there are 188.6 rainfall days, and 39.17" (995mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Upton are January through May, October through December. In Upton, West Virginia, in December, during 10.7 snowfall days, 4.29" (109mm) of snow is typically accumulated. Throughout the year, there are 52.1 snowfall days, and 24.21" (615mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Upton, with an average of 9h and 24min of daylight.
On the first day of December in Upton, West Virginia, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:07 pm EST.

Sunshine

In December, the average sunshine is 3.5h.

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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

Is December cold in Upton?

The high-temperature during December is 41.5°F (5.3°C) and the low-temperature is 29.3°F (-1.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 87.8°F (31°C).

What is the average humidity in December in Upton?

In December, the average relative humidity in Upton, West Virginia, is 82%.

How much does it rain in Upton in December?

In Upton, West Virginia, in December, it is raining for 13.1 days, with typically 3.35" (85mm) of accumulated precipitation.

How many days does it snow in December in Upton?

In Upton, during December, snow falls for 10.7 days and regularly aggregates up to 4.29" (109mm) of snow.

What is the month with the shortest days in Upton?

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

How many hours of daylight does Upton have in December?

In December, the average day length is 9h and 26min.

When is the sunrise / sunset in December in Upton?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, in Upton, West Virginia, sunrise is at 7:41 am and sunset at 5:07 pm EST.

How long on average sun shines in December in Upton?

In December, the average sunshine duration is 3.5h.

When is the lowest UV index in Upton?

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

How high is the UV index in December in Upton?

In Upton, West Virginia, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Upton, WV

Average temperature in December - Upton, WV
  • Average high temperature in December: 41.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in December
Upton, WV

Average pressure in December - Upton, WV
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Upton, WV

Average wind speed in December - Upton, WV
  • Average wind speed in December: 6.3mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Upton, WV

Average humidity in December - Upton, WV
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

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Average rainfall in December
Upton, WV

Average rainfall in December - Upton, WV
  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").

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Average rainfall days in December
Upton, WV

Average rainfall days in December - Upton, WV
  • Average rainfall days in December: 13.1 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).

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Average snowfall in December
Upton, WV

Average snowfall in December - Upton, WV
  • Average snowfall in December: 4.29"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Upton, WV

Average snowfall days in December - Upton, WV
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is January (15 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
Upton, WV

Average daylight in December / Average sunshine in December - Upton, WV
  • 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: 3h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in December
Upton, WV

Average sunshine days in December - Upton, WV
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).

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Average UV index in December
Upton, WV

Average UV index in December - Upton, WV
  • Average UV index in December: 2

The months with the highest UV index are May and July (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
Upton, WV

Average cloud cover in December - Upton, WV
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in December
Upton, WV

Average visibility in December - Upton, WV
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Upton, West Virginia, USA

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