December weather forecast
Hamilton Dome, WY

Share

Weather in December

December, the first month of the winter in Hamilton Dome, is also a subzero cold month, with an average temperature varying between 28.2°F (-2.1°C) and 12.9°F (-10.6°C).

Temperature

December, recording an average high temperature of 28.2°F (-2.1°C) and a low temperature of 12.9°F (-10.6°C), is Hamilton Dome's coldest month.

Humidity

In December, the average relative humidity in Hamilton Dome, Wyoming, is 78%.

Rainfall

In Hamilton Dome, Wyoming, in December, during 4.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Hamilton Dome, during the entire year, the rain falls for 117.2 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

Months with snowfall in Hamilton Dome are January through May, September through December. In December, in Hamilton Dome, Wyoming, it is snowing for 9.8 days. Throughout December, 2.83" (72mm) of snow is accumulated. In Hamilton Dome, during the entire year, snow falls for 51.2 days and aggregates up to 21.3" (541mm) of snow.

Daylight

December has the shortest days of the year in Hamilton Dome, Wyoming, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 7:29 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:47 pm MST.

Sunshine

In Hamilton Dome, the average sunshine in December is 6.5h.

UV index

The months with the lowest UV index in Hamilton Dome are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
[Resources]

Frequently asked questions

What are the coldest months in Hamilton Dome?

The coldest period tends to be December, when average temperatures fluctuate between a high of 28.2°F (-2.1°C) and a low of 12.9°F (-10.6°C).

How cold is it in Hamilton Dome in December?

The average high-temperature and low-temperature in Hamilton Dome, Wyoming, during December are 28.2°F (-2.1°C) and 12.9°F (-10.6°C) respectively.

What is the average humidity in December in Hamilton Dome?

In Hamilton Dome, the average relative humidity in December is 78%.

How many days does it rain in December in Hamilton Dome?

In Hamilton Dome, in December, during 4.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How much does it snow in Hamilton Dome in December?

In December, in Hamilton Dome, Wyoming, it is snowing for 9.8 days. Throughout December, 2.83" (72mm) of snow is accumulated.

What is the month with the shortest days in Hamilton Dome?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

What is the average length of the day in December in Hamilton Dome?

The average day length in December in Hamilton Dome, Wyoming, is 8h and 59min.

What time are sunrise and sunset in December in Hamilton Dome?

On the first day of December in Hamilton Dome, Wyoming, sunrise is at 7:29 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:47 pm MST.

How many hours of sunshine does Hamilton Dome have in December?

The average sunshine duration in December in Hamilton Dome is 6.5h.

When is the lowest UV index in Hamilton Dome?

The months with the lowest UV index in Hamilton Dome are January through April, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Hamilton Dome?

In Hamilton Dome, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Hamilton Dome, WY

Average temperature in December - Hamilton Dome, WY
  • Average high temperature in December: 28.2°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.2°F).

  • Average low temperature in December: 12.9°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

[Resources]

Average pressure in December
Hamilton Dome, WY

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

[Resources]

Average wind speed in December
Hamilton Dome, WY

Average wind speed in December - Hamilton Dome, WY
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (5mph).

[Resources]

Average humidity in December
Hamilton Dome, WY

Average humidity in December - Hamilton Dome, WY
  • Average humidity in December: 78%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (35%).

[Resources]

Average rainfall in December
Hamilton Dome, WY

Average rainfall in December - Hamilton Dome, WY
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.43").

[Resources]

Average rainfall days in December
Hamilton Dome, WY

Average rainfall days in December - Hamilton Dome, WY
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and December (4.3 days).

[Resources]

Average snowfall in December
Hamilton Dome, WY

Average snowfall in December - Hamilton Dome, WY
  • Average snowfall in December: 2.83"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in December
Hamilton Dome, WY

Average snowfall days in December - Hamilton Dome, WY
  • Average snowfall days in December: 9.8 days

The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Hamilton Dome, WY

Average daylight in December / Average sunshine in December - Hamilton Dome, 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: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).

[Resources]

Average sunshine days in December
Hamilton Dome, WY

Average sunshine days in December - Hamilton Dome, WY
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (10.1 days).

[Resources]

Average UV index in December
Hamilton Dome, WY

Average UV index in December - Hamilton Dome, 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, November and December (UV index 2).

[Resources]

Average cloud cover in December
Hamilton Dome, WY

Average cloud cover in December - Hamilton Dome, WY
  • Average cloud cover in December: 32

The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 14).

[Resources]

Average visibility in December
Hamilton Dome, WY

Average visibility in December - Hamilton Dome, WY
  • Average visibility in December: 6mi

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

[Resources]

Hamilton Dome, Wyoming, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location