December weather forecast
Cody, WY

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Weather in December

December culminates the year with full-fledged winter in Cody, Wyoming, echoing January's cold and snowy conditions. The frequency of snowfall is second only to February's record, painting the city white all month long. Chilly days and freezing nights dominate the month's weather pattern, with cloudy skies being a common occurrence. As the year draws to a close, Cody lights up for the holiday season, turning the city's winter wonderland into an ethereal spectacle.

Temperature

The month of December, characterized by an average high of 29.3°F (-1.5°C) and a low of 15.1°F (-9.4°C), is recognized as the coldest in Cody, Wyoming.

Humidity

In Cody, the average relative humidity in December is 73%.

Rainfall

January and December are months with the least rain in Cody when the rain falls for 5.9 days and typically aggregates up to 0.28" (7mm) of rain.

Snowfall

Months with snowfall in Cody are January through June, September through December. In Cody, in December, snow falls for 7.8 days, with typically accumulated 1.97" (50mm) of snow. In Cody, during the entire year, snow falls for 54.2 days and aggregates up to 21.57" (548mm) of snow.

Daylight

The month with the shortest days in Cody is December, with an average of 8h and 54min of daylight.
On the first day of December in Cody, Wyoming, sunrise is at 7:33 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:46 pm MST.

Sunshine

The average sunshine in December is 6.8h.

UV index

The months with the lowest UV index in Cody 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 minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 in December translates into these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in Cody?

December is Cody's coldest month, registering average high temperatures of 29.3°F (-1.5°C) and lows of 15.1°F (-9.4°C).

How cold is it in Cody in December?

In Cody, 29.3°F (-1.5°C) is the average high-temperature and 15.1°F (-9.4°C) is the average low-temperature during December.

What is the average humidity in December in Cody?

In December, the average relative humidity is 73%.

What is the driest month in Cody?

January and December are months with the least rain in Cody when the rain falls for 5.9 days and typically aggregates up to 0.28" (7mm) of rain.

How many days does it rain in December in Cody?

In Cody, in December, it is raining for 5.9 days, with typically 0.28" (7mm) of accumulated precipitation.

How many days does it snow in December in Cody?

In Cody, Wyoming, in December, during 7.8 snowfall days, 1.97" (50mm) of snow is typically accumulated.

What is the month with the shortest days in Cody?

December has the shortest days of the year in Cody, with an average of 8h and 54min of daylight.

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

In Cody, Wyoming, the average day length in December is 8h and 54min.

What time are sunrise and sunset in December in Cody?

In December, on the first day of the month, sunrise is at 7:33 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:46 pm MST.

How long on average sun shines in December in Cody?

In Cody, the average sunshine duration in December is 6.8h.

What is the month with the lowest UV index in Cody?

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

What is the UV index intensity in December in Cody?

In Cody, Wyoming, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Cody, WY

Average temperature in December - Cody, WY
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (29.3°F).

  • Average low temperature in December: 15.1°F

The month with the highest average low temperature is July (57.2°F).
The coldest months (with the lowest average low temperature) are February and December (15.1°F).

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Average pressure in December
Cody, WY

Average pressure in December - Cody, WY
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Cody, WY

Average wind speed in December - Cody, WY
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Cody, WY

Average humidity in December - Cody, WY
  • Average humidity in December: 73%

The months with the highest relative humidity are January and February (74%).
The month with the lowest relative humidity is July (38%).

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Average rainfall in December
Cody, WY

Average rainfall in December - Cody, WY
  • Average rainfall in December: 0.28"

The wettest month (with the highest rainfall) is May (1.57").
The driest months (with the least rainfall) are January and December (0.28").

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Average rainfall days in December
Cody, WY

Average rainfall days in December - Cody, WY
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and December (5.9 days).

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Average snowfall in December
Cody, WY

Average snowfall in December - Cody, WY
  • Average snowfall in December: 1.97"

The month with the highest snowfall is February (4.49").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Cody, WY

Average snowfall days in December - Cody, WY
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Cody, WY

Average daylight in December / Average sunshine in December - Cody, WY
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

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Average sunshine days in December
Cody, WY

Average sunshine days in December - Cody, WY
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in December
Cody, WY

Average UV index in December - Cody, 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
Cody, WY

Average cloud cover in December - Cody, WY
  • Average cloud cover in December: 28

The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in December
Cody, WY

Average visibility in December - Cody, 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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Cody, Wyoming, USA

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