December weather forecast
Colony, WY

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Weather in December

The first month of the winter, December, is still a freezing cold month in Colony, Wyoming, with an average temperature varying between 18.1°F (-7.7°C) and 30.4°F (-0.9°C).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 30.4°F (-0.9°C) and a low of 18.1°F (-7.7°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Colony, during December, the rain falls for 3.5 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, in Colony, there are 100 rainfall days, and 12.83" (326mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Colony. In December, in Colony, it is snowing for 9.4 days. Throughout December, 2.95" (75mm) of snow is accumulated. Throughout the year, in Colony, there are 52.1 snowfall days, and 23.54" (598mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:16 pm. On the last day of December, in Colony, Wyoming, sunrise is at 7:34 am and sunset at 4:25 pm MST.

Sunshine

In Colony, the average sunshine in December is 5.8h.

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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Colony?

Colony's coldest month, December, generally records average temperatures ranging from a high of 30.4°F (-0.9°C) to a low of 18.1°F (-7.7°C).

How cold is December in Colony?

An average high-temperature, in December, in Colony, is 30.4°F (-0.9°C) and the average low-temperature is 18.1°F (-7.7°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 84.2°F (29°C).

What is the average humidity in December in Colony?

The average relative humidity in December in Colony is 78%.

How many days does it rain in December in Colony?

In Colony, Wyoming, during December, the rain falls for 3.5 days and regularly aggregates up to 0.59" (15mm) of precipitation.

How much does it snow in Colony in December?

In December, in Colony, Wyoming, it is snowing for 9.4 days. Throughout December, 2.95" (75mm) of snow is accumulated.

What is the month with the shortest days in Colony?

The month with the shortest days in Colony, Wyoming, is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Colony have in December?

The average day length in December in Colony, Wyoming, is 8h and 51min.

When is the sunrise / sunset in December in Colony?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:25 pm MST.

How long on average sun shines in December in Colony?

The average sunshine duration in December in Colony, Wyoming, is 5.8h.

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

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

What is the UV index reading in December in Colony?

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

Average temperature in December - Colony, WY
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in December: 18.1°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).

Average pressure in December
Colony, WY

Average pressure in December - Colony, WY
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Colony, WY

Average wind speed in December - Colony, WY
  • Average wind speed in December: 10.1mph

The windiest months (with the highest average wind speed) are January and October (10.4mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in December
Colony, WY

Average humidity in December - Colony, WY
  • Average humidity in December: 78%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (47%).

Average rainfall in December
Colony, WY

Average rainfall in December - Colony, WY
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
Colony, WY

Average rainfall days in December - Colony, WY
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (2.8 days).

Average snowfall in December
Colony, WY

Average snowfall in December - Colony, WY
  • Average snowfall in December: 2.95"

The month with the highest snowfall is April (4.88").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Colony, WY

Average snowfall days in December - Colony, WY
  • Average snowfall days in December: 9.4 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Colony, 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: 5h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in December
Colony, WY

Average sunshine days in December - Colony, WY
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is April (12.6 days).

Average UV index in December
Colony, WY

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

Average cloud cover in December
Colony, WY

Average cloud cover in December - Colony, WY
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Colony, WY

Average visibility in December - Colony, 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).

Colony, Wyoming, USA

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