December weather forecast
Wyoming, IA

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Weather in December

The first month of the winter, December, is also a wintry month in Wyoming, Iowa, with an average temperature fluctuating between 22.1°F (-5.5°C) and 32.4°F (0.2°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a frosty 44.8°F (7.1°C) in November to a wintry 32.4°F (0.2°C). In Wyoming, the average temperature during the nights of December drops to a freezing cold 22.1°F (-5.5°C).

Humidity

The average relative humidity in December in Wyoming is 82%.

Rainfall

In Wyoming, in December, during 6.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Wyoming, during the entire year, the rain falls for 137.5 days and collects up to 27.68" (703mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Wyoming, Iowa. In Wyoming, in December, snow falls for 8.7 days, with typically accumulated 2.24" (57mm) of snow. In Wyoming, during the entire year, snow falls for 38.8 days and aggregates up to 15.16" (385mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Wyoming.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:33 pm. On the last day of December, in Wyoming, sunrise is at 7:32 am and sunset at 4:42 pm CST.

Sunshine

The average sunshine in December in Wyoming is 4.2h.

UV index

December is the month with the lowest UV index in Wyoming, Iowa, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Wyoming in December?

December temperatures in Wyoming vary between a high-temperature of 32.4°F (0.2°C) and a low-temperature of 22.1°F (-5.5°C).

What is the average humidity in December in Wyoming?

In Wyoming, the average relative humidity in December is 82%.

How many days does it rain in December in Wyoming?

In Wyoming, in December, during 6.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How much does it snow in Wyoming in December?

In Wyoming, in December, snow falls for 8.7 days, with typically accumulated 2.24" (57mm) of snow.

What is the month with the shortest days in Wyoming?

The month with the shortest days in Wyoming, Iowa, is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Wyoming have in December?

The average day length in December is 9h and 10min.

What time are sunrise and sunset in December in Wyoming?

On the first day of December in Wyoming, Iowa, sunrise is at 7:13 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:42 pm CST.

How many hours of sunshine does Wyoming have in December?

The average sunshine duration in December in Wyoming is 4.2h.

When is the lowest UV index in Wyoming?

The month with the lowest UV index in Wyoming, Iowa, is December, with an average maximum UV index of 1.

What is the UV index intensity in December in Wyoming?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk from 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
Wyoming, IA

Average temperature in December - Wyoming, IA
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in December: 22.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in December
Wyoming, IA

Average pressure in December - Wyoming, IA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Wyoming, IA

Average wind speed in December - Wyoming, IA
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in December
Wyoming, IA

Average humidity in December - Wyoming, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Wyoming, IA

Average rainfall in December - Wyoming, IA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in December
Wyoming, IA

Average rainfall days in December - Wyoming, IA
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall in December
Wyoming, IA

Average snowfall in December - Wyoming, IA
  • Average snowfall in December: 2.24"

The month with the highest snowfall is January (5.16").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Wyoming, IA

Average snowfall days in December - Wyoming, IA
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (11.3 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
Wyoming, IA

Average daylight in December / Average sunshine in December - Wyoming, IA
  • 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 12min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Wyoming, IA

Average sunshine days in December - Wyoming, IA
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in December
Wyoming, IA

Average UV index in December - Wyoming, IA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Wyoming, IA

Average cloud cover in December - Wyoming, IA
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Wyoming, IA

Average visibility in December - Wyoming, IA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Wyoming, Iowa, USA

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