December weather forecast
Byers, CO

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Weather in December

The first month of the winter, December, is also a wintry month in Byers, Colorado, with an average temperature varying between 21.2°F (-6°C) and 39.9°F (4.4°C).

Temperature

The coldest month is December, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 21.2°F (-6°C).

Humidity

The average relative humidity in December is 62%.

Rainfall

December is the month with the least rainfall. Rain falls for 1.1 days and accumulates 0.24" (6mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Byers, during December, snow falls for 4.2 days and regularly aggregates up to 1.26" (32mm) of snow. Throughout the year, there are 32.1 snowfall days, and 19.84" (504mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:33 pm. On the last day of December, in Byers, Colorado, sunrise is at 7:17 am and sunset at 4:42 pm MST.

Sunshine

In Byers, the average sunshine in December is 6.5h.

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 average individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Byers?

December, noted for its average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 21.2°F (-6°C), is considered the coldest month.

Is December cold in Byers?

December temperatures in Byers vary between a high-temperature of 39.9°F (4.4°C) and a low-temperature of 21.2°F (-6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the average humidity in December in Byers?

The average relative humidity in December is 62%.

What is the driest month in Byers?

The month with the least rainfall in Byers is December, when the rain falls for 1.1 days and typically collects 0.24" (6mm) of precipitation.

How much does it rain in Byers in December?

In December, the rain falls for 1.1 days. Throughout December, 0.24" (6mm) of precipitation is accumulated.

How many days does it snow in December in Byers?

In Byers, Colorado, during December, snow falls for 4.2 days and regularly aggregates up to 1.26" (32mm) of snow.

What is the month with the shortest days in Byers?

December has the shortest days of the year in Byers, Colorado, with an average of 9h and 24min of daylight.

How many hours of daylight does Byers have in December?

The average day length in December is 9h and 25min.

When are sunrise and sunset in December in Byers?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:33 pm. On the last day of the month, in Byers, Colorado, sunrise is at 7:17 am and sunset at 4:42 pm MST.

How long on average sun shines in December in Byers?

In December, the average sunshine duration in Byers, Colorado, is 6.5h.

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

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

What is the UV index intensity in December in Byers?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Byers, CO

Average temperature in December - Byers, CO
  • Average high temperature in December: 39.9°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (39.9°F).

  • Average low temperature in December: 21.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

Average pressure in December
Byers, CO

Average pressure in December - Byers, CO
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Byers, CO

Average wind speed in December - Byers, CO
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is December (7.3mph).

Average humidity in December
Byers, CO

Average humidity in December - Byers, CO
  • Average humidity in December: 62%

The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (44%).

Average rainfall in December
Byers, CO

Average rainfall in December - Byers, CO
  • Average rainfall in December: 0.24"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is December (0.24").

Average rainfall days in December
Byers, CO

Average rainfall days in December - Byers, CO
  • Average rainfall days in December: 1.1 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is December (1.1 days).

Average snowfall in December
Byers, CO

Average snowfall in December - Byers, CO
  • Average snowfall in December: 1.26"

The month with the highest snowfall is October (3.58").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Byers, CO

Average snowfall days in December - Byers, CO
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Byers, CO

Average daylight in December / Average sunshine in December - Byers, CO
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 6h and 3min

The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in December
Byers, CO

Average sunshine days in December - Byers, CO
  • Average sunshine days in December: 26.4 days

The month with the most sunshine days is December (26.4 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in December
Byers, CO

Average UV index in December - Byers, CO
  • 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
Byers, CO

Average cloud cover in December - Byers, CO
  • Average cloud cover in December: 28

The month with the most cloud cover is April (Cloud cover 30).
The months with the least cloud cover are June, August and September (Cloud cover 18).

Average visibility in December
Byers, CO

Average visibility in December - Byers, CO
  • 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).

Byers, Colorado, USA

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