December weather forecast
Leiter, WY

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Weather in December

December, the first month of the winter in Leiter, is still a freezing cold month, with an average temperature fluctuating between 31.6°F (-0.2°C) and 17.4°F (-8.1°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's frosty 43.7°F (6.5°C) to a freezing cold 31.6°F (-0.2°C). During the month of December, the temperature in Leiter falls to an average of 17.4°F (-8.1°C).

Humidity

The average relative humidity in December in Leiter is 71%.

Rainfall

In Leiter, during December, the rain falls for 2.5 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Leiter, during the entire year, the rain falls for 99.8 days and collects up to 11.61" (295mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In December, in Leiter, it is snowing for 6.4 days. Throughout December, 1.26" (32mm) of snow is accumulated. In Leiter, during the entire year, snow falls for 44.9 days and aggregates up to 18.23" (463mm) of snow.

Daylight

The month with the shortest days in Leiter, Wyoming, is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:34 pm MST.

Sunshine

In Leiter, Wyoming, the average sunshine in December is 6.4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Leiter in December?

The average high-temperature, in December, in Leiter, is 31.6°F (-0.2°C), while the average low-temperature is 17.4°F (-8.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 84.2°F (29°C).

What is the average humidity in December in Leiter?

In Leiter, Wyoming, the average relative humidity in December is 71%.

How many days does it rain in December in Leiter?

In Leiter, in December, during 2.5 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

How many days does it snow in December in Leiter?

In Leiter, in December, during 6.4 snowfall days, 1.26" (32mm) of snow is typically accumulated.

What is the month with the shortest days in Leiter?

With an average of 8h and 54min of daylight, December has the shortest days of the year in Leiter, Wyoming.

How many hours of daylight does Leiter have in December?

The average day length in December in Leiter is 8h and 52min.

When are sunrise and sunset in December in Leiter?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:25 pm. On the last day of the month, in Leiter, sunrise is at 7:42 am and sunset at 4:34 pm MST.

How many hours of sunshine does Leiter have in December?

In December, the average sunshine duration in Leiter is 6.4h.

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

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

How high is the UV index in December in Leiter?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Leiter, WY

Average temperature in December - Leiter, WY
  • Average high temperature in December: 31.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is February (31.5°F).

  • Average low temperature in December: 17.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

Average pressure in December
Leiter, WY

Average pressure in December - Leiter, WY
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Leiter, WY

Average wind speed in December - Leiter, WY
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

Average humidity in December
Leiter, WY

Average humidity in December - Leiter, WY
  • Average humidity in December: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (38%).

Average rainfall in December
Leiter, WY

Average rainfall in December - Leiter, WY
  • Average rainfall in December: 0.31"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in December
Leiter, WY

Average rainfall days in December - Leiter, WY
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (2.5 days).

Average snowfall in December
Leiter, WY

Average snowfall in December - Leiter, WY
  • Average snowfall in December: 1.26"

The month with the highest snowfall is April (3.46").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Leiter, WY

Average snowfall days in December - Leiter, WY
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is November (7.5 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Leiter, 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 2min

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 12min).

Average sunshine days in December
Leiter, WY

Average sunshine days in December - Leiter, WY
  • Average sunshine days in December: 23.4 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Leiter, WY

Average UV index in December - Leiter, WY
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Leiter, WY

Average cloud cover in December - Leiter, WY
  • Average cloud cover in December: 33

The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in December
Leiter, WY

Average visibility in December - Leiter, 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).

Leiter, Wyoming, USA

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