December weather forecast
Midwest, WY

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Weather in December

The first month of the winter, December, is still a freezing cold month in Midwest, Wyoming, with an average temperature fluctuating between 15.1°F (-9.4°C) and 28.6°F (-1.9°C).

Temperature

Midwest's coldest weather arrives in December, when temperatures average a high of 28.6°F (-1.9°C) and a low of 15.1°F (-9.4°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Midwest, in December, it is raining for 3.3 days, with typically 0.63" (16mm) of accumulated precipitation. In Midwest, during the entire year, the rain falls for 81 days and collects up to 8.98" (228mm) of precipitation.

Snowfall

Months with snowfall in Midwest are January through May, September through December. In December, it is snowing for 9.8 days. Throughout December, 4.21" (107mm) of snow is accumulated. In Midwest, during the entire year, snow falls for 62.6 days and aggregates up to 31.65" (804mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Midwest.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:39 pm MST.

Sunshine

The average sunshine in December is 6.5h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. 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 alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What is the coldest time of year?

December, known for its average high temperature of 28.6°F (-1.9°C) and an average low temperature of 15.1°F (-9.4°C), is the coldest month.

How cold is it in December?

The high-temperature during December is 28.6°F (-1.9°C) and the low-temperature is 15.1°F (-9.4°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

How much does it rain in December?

In December, in Midwest, the rain falls for 3.3 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

How much does it snow in December?

In Midwest, Wyoming, in December, snow falls for 9.8 days, with typically accumulated 4.21" (107mm) of snow.

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Midwest have in December?

In Midwest, the average day length in December is 9h and 1min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:39 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 6.5h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Midwest, WY

Average temperature in December - Midwest, WY
  • Average high temperature in December: 28.6°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (28.6°F).

  • Average low temperature in December: 15.1°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).

Average pressure in December
Midwest, WY

Average pressure in December - Midwest, WY
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Midwest, WY

Average wind speed in December - Midwest, WY
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).

Average humidity in December
Midwest, WY

Average humidity in December - Midwest, WY
  • Average humidity in December: 76%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (36%).

Average rainfall in December
Midwest, WY

Average rainfall in December - Midwest, WY
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in December
Midwest, WY

Average rainfall days in December - Midwest, WY
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is May (10.9 days).
The month with the least rainy days is December (3.3 days).

Average snowfall in December
Midwest, WY

Average snowfall in December - Midwest, WY
  • Average snowfall in December: 4.21"

The month with the highest snowfall is March (5.55").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Midwest, WY

Average snowfall days in December - Midwest, WY
  • Average snowfall days in December: 9.8 days

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Midwest, WY
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 6h and 3min

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

Average sunshine days in December
Midwest, WY

Average sunshine days in December - Midwest, WY
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is April (13.6 days).

Average UV index in December
Midwest, WY

Average UV index in December - Midwest, WY
  • 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, March, October, November and December (UV index 2).

Average cloud cover in December
Midwest, WY

Average cloud cover in December - Midwest, WY
  • Average cloud cover in December: 31

The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in December
Midwest, WY

Average visibility in December - Midwest, 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).

Midwest, Wyoming, USA

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