December weather forecast
Diamondville, WY

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Weather in December

The first month of the winter, December, is still a freezing cold month in Diamondville, Wyoming, with an average temperature ranging between min 10°F (-12.2°C) and max 25.7°F (-3.5°C).

Temperature

December, with average temperatures reaching a high of 25.7°F (-3.5°C) and a low of 10°F (-12.2°C), is the coldest month.

Humidity

In Diamondville, the average relative humidity in December is 85%.

Rainfall

In Diamondville, Wyoming, during December, the rain falls for 6.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Diamondville, during the entire year, the rain falls for 96.8 days and collects up to 11.46" (291mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Diamondville, Wyoming. In December, it is snowing for 13.5 days. Throughout December, 4.84" (123mm) of snow is accumulated. Throughout the year, there are 88.9 snowfall days, and 38.86" (987mm) of snow is accumulated.

Daylight

The month with the shortest days in Diamondville is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:01 pm MST.

Sunshine

In December, the average sunshine in Diamondville is 5.9h.

UV index

January through April, 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 threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

In Diamondville, the average lowest temperatures are observed in December, with a high of 25.7°F (-3.5°C) and a low of 10°F (-12.2°C).

How cold is December?

Diamondville in December has an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 10°F (-12.2°C).

What is the average humidity in December?

In December, the average relative humidity is 85%.

How many days does it rain in December?

In December, the rain falls for 6.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

How much does it snow in December?

In Diamondville, in December, snow falls for 13.5 days, with typically accumulated 4.84" (123mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Diamondville have in December?

In Diamondville, the average day length in December is 9h and 12min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:01 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 5.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Diamondville, Wyoming, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Diamondville, WY

Average temperature in December - Diamondville, WY
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in December
Diamondville, WY

Average pressure in December - Diamondville, WY
  • Average pressure in December: 30.24"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Diamondville, WY

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

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

Average humidity in December
Diamondville, WY

Average humidity in December - Diamondville, WY
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).

Average rainfall in December
Diamondville, WY

Average rainfall in December - Diamondville, WY
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").

Average rainfall days in December
Diamondville, WY

Average rainfall days in December - Diamondville, WY
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).

Average snowfall in December
Diamondville, WY

Average snowfall in December - Diamondville, WY
  • Average snowfall in December: 4.84"

The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Diamondville, WY

Average snowfall days in December - Diamondville, WY
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Diamondville, 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 12min).

  • Average sunshine in December: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in December
Diamondville, WY

Average sunshine days in December - Diamondville, WY
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).

Average UV index in December
Diamondville, WY

Average UV index in December - Diamondville, 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).

Average cloud cover in December
Diamondville, WY

Average cloud cover in December - Diamondville, WY
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).

Average visibility in December
Diamondville, WY

Average visibility in December - Diamondville, WY
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Diamondville, Wyoming, USA

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