December weather forecast
Atlantic City, WY

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Weather in December

December, the first month of the winter in Atlantic City, is also a subzero cold month, with temperature in the range of an average low of 13.1°F (-10.5°C) and an average high of 28.4°F (-2°C).

Temperature

The coldest time of the year is December, with temperatures averaging a high of 28.4°F (-2°C) and a low of 13.1°F (-10.5°C).

Humidity

In December, the average relative humidity is 74%.

Rainfall

In Atlantic City, in December, during 6.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Atlantic City, during the entire year, the rain falls for 92 days and collects up to 10.2" (259mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Atlantic City, in December, during 9.9 snowfall days, 3.58" (91mm) of snow is typically accumulated. Throughout the year, there are 56.8 snowfall days, and 40.94" (1040mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year in Atlantic City.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:42 pm. On the last day of December, in Atlantic City, Wyoming, sunrise is at 7:44 am and sunset at 4:52 pm MST.

Sunshine

With an average of 6.8h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Atlantic City, Wyoming, are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the coldest time of year in Atlantic City?

December, with an average high of 28.4°F (-2°C) and a low of 13.1°F (-10.5°C), signifies the coldest month of the year in Atlantic City, Wyoming.

How cold is December in Atlantic City?

The average high-temperature, in December, in Atlantic City, is 28.4°F (-2°C), while the average low-temperature is 13.1°F (-10.5°C).

What is the average humidity in December in Atlantic City?

In December, the average relative humidity is 74%.

How many days does it rain in December in Atlantic City?

In Atlantic City, in December, during 6.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How much does it snow in Atlantic City in December?

In Atlantic City, during December, snow falls for 9.9 days and regularly aggregates up to 3.58" (91mm) of snow.

What is the month with the shortest days in Atlantic City?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

What is the average length of the day in December in Atlantic City?

The average day length in December in Atlantic City is 9h and 8min.

What time are sunrise and sunset in December in Atlantic City?

On the first day of December in Atlantic City, Wyoming, sunrise is at 7:25 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:52 pm MST.

What is the month with the least sunshine in Atlantic City?

The month with the least sunshine in Atlantic City is December, with an average of 6.8h of sunshine.

How many hours of sunshine does Atlantic City have in December?

In December, the average sunshine duration is 6.8h.

What is the month with the lowest UV index in Atlantic City?

The months with the lowest UV index in Atlantic City are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in December in Atlantic City?

In December, the average daily maximum UV index is 2. A UV Index reading 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
Atlantic City, WY

Average temperature in December - Atlantic City, WY
  • Average high temperature in December: 28.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (28.4°F).

  • Average low temperature in December: 13.1°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

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Average pressure in December
Atlantic City, WY

Average pressure in December - Atlantic City, WY
  • Average pressure in December: 30.21"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Atlantic City, WY

Average wind speed in December - Atlantic City, WY
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in December
Atlantic City, WY

Average humidity in December - Atlantic City, WY
  • Average humidity in December: 74%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in December
Atlantic City, WY

Average rainfall in December - Atlantic City, WY
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in December
Atlantic City, WY

Average rainfall days in December - Atlantic City, WY
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is November (4.8 days).

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Average snowfall in December
Atlantic City, WY

Average snowfall in December - Atlantic City, WY
  • Average snowfall in December: 3.58"

The month with the highest snowfall is April (8.15").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Atlantic City, WY

Average snowfall days in December - Atlantic City, WY
  • Average snowfall days in December: 9.9 days

The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Atlantic City, WY

Average daylight in December / Average sunshine in December - Atlantic City, WY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in December
Atlantic City, WY

Average sunshine days in December - Atlantic City, WY
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is September (22 days).
The month with the least sunshine days is April (12.3 days).

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Average UV index in December
Atlantic City, WY

Average UV index in December - Atlantic City, WY
  • Average UV index in December: 2

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

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Average cloud cover in December
Atlantic City, WY

Average cloud cover in December - Atlantic City, WY
  • Average cloud cover in December: 25

The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in December
Atlantic City, WY

Average visibility in December - Atlantic City, WY
  • Average visibility in December: 6mi

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

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Atlantic City, Wyoming, USA

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