December weather forecast
Antonito, CO

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Weather in December

The first month of the winter, December, is still a cold month in Antonito, Colorado, with an average temperature varying between 33.8°F (1°C) and 15.4°F (-9.2°C).

Temperature

During Antonito's transition into December, the average high-temperature lessens, moving from a frosty 46.2°F (7.9°C) in November to a cold 33.8°F (1°C). During December, Antonito consistently records a temperature low averaging a freezing cold 15.4°F (-9.2°C).

Humidity

In Antonito, the average relative humidity in December is 72%.

Rainfall

November and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 0.39" (10mm) of rain.

Snowfall

Months with snowfall are January through May, September through December. In December, it is snowing for 8.5 days. Throughout December, 3.19" (81mm) of snow is accumulated. In Antonito, during the entire year, snow falls for 44.9 days and aggregates up to 22.6" (574mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:59 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:57 pm MST.

Sunshine

In Antonito, the average sunshine in December is 7h.

UV index

January, February, 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

Antonito in December has an average high-temperature of 33.8°F (1°C) and an average low-temperature of 15.4°F (-9.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 82.4°F (28°C).

What is the average humidity in December?

In Antonito, the average relative humidity in December is 72%.

What is the driest month?

November and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 0.39" (10mm) of rain.

How much does it rain in December?

In December, the rain falls for 6.1 days. Throughout December, 0.39" (10mm) of precipitation is accumulated.

How much does it snow in December?

In Antonito, Colorado, in December, during 8.5 snowfall days, 3.19" (81mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

How many hours of daylight does Antonito have in December?

In Antonito, Colorado, the average day length in December is 9h and 40min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:59 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:57 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 7h.

What are the months with the lowest UV index?

January, February, October through 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 December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents 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
Antonito, CO

Average temperature in December - Antonito, CO
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 15.4°F

The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in December
Antonito, CO

Average pressure in December - Antonito, CO
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

Average wind speed in December
Antonito, CO

Average wind speed in December - Antonito, CO
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Antonito, CO

Average humidity in December - Antonito, CO
  • Average humidity in December: 72%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).

Average rainfall in December
Antonito, CO

Average rainfall in December - Antonito, CO
  • Average rainfall in December: 0.39"

The wettest month (with the highest rainfall) is May (1.02").
The driest months (with the least rainfall) are November and December (0.39").

Average rainfall days in December
Antonito, CO

Average rainfall days in December - Antonito, CO
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is November (3 days).

Average snowfall in December
Antonito, CO

Average snowfall in December - Antonito, CO
  • Average snowfall in December: 3.19"

The month with the highest snowfall is March (3.98").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Antonito, CO

Average snowfall days in December - Antonito, CO
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Antonito, CO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

Average sunshine days in December
Antonito, CO

Average sunshine days in December - Antonito, CO
  • Average sunshine days in December: 21.4 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is April (16.9 days).

Average UV index in December
Antonito, CO

Average UV index in December - Antonito, CO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in December
Antonito, CO

Average cloud cover in December - Antonito, CO
  • Average cloud cover in December: 22

The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 12).

Average visibility in December
Antonito, CO

Average visibility in December - Antonito, CO
  • Average visibility in December: 6mi

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

Antonito, Colorado, USA

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