December weather forecast
Otis, CO

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Weather in December

The first month of the winter, December, is also an icy month in Otis, Colorado, with an average temperature ranging between max 38.5°F (3.6°C) and min 23.2°F (-4.9°C).

Temperature

The month of December, characterized by an average high of 38.5°F (3.6°C) and a low of 23.2°F (-4.9°C), is recognized as the coldest.

Humidity

The average relative humidity in December is 63%.

Rainfall

In Otis, during December, the rain falls for 4 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Otis, during the entire year, the rain falls for 106.1 days and collects up to 13.66" (347mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 6.4 days. Throughout December, 1.81" (46mm) of snow is accumulated. In Otis, during the entire year, snow falls for 36.1 days and aggregates up to 14.13" (359mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:55 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:36 pm MST.

Sunshine

In December, the average sunshine is 6.5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

December proves to be the coldest month in Otis, recording an average maximum temperature of 38.5°F (3.6°C) and a minimum temperature of 23.2°F (-4.9°C).

Is it cold during December?

An average high-temperature, in December, in Otis, is 38.5°F (3.6°C) and the average low-temperature is 23.2°F (-4.9°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In Otis, the average relative humidity in December is 63%.

How many days does it rain in December?

In Otis, in December, it is raining for 4 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in Otis in December?

In Otis, during December, snow falls for 6.4 days and regularly aggregates up to 1.81" (46mm) of snow.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Otis have in December?

In Otis, the average day length in December is 9h and 22min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:55 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:36 pm MST.

How long on average sun shines in December?

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

What are the months with the lowest UV index?

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

How high is the UV index in December?

In Otis, 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
Otis, CO

Average temperature in December - Otis, CO
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.5°F).

  • Average low temperature in December: 23.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).

Average pressure in December
Otis, CO

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

The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in December
Otis, CO

Average wind speed in December - Otis, CO
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (9.4mph).

Average humidity in December
Otis, CO

Average humidity in December - Otis, CO
  • Average humidity in December: 63%

The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (47%).

Average rainfall in December
Otis, CO

Average rainfall in December - Otis, CO
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in December
Otis, CO

Average rainfall days in December - Otis, CO
  • Average rainfall days in December: 4 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is February (3.6 days).

Average snowfall in December
Otis, CO

Average snowfall in December - Otis, CO
  • Average snowfall in December: 1.81"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Otis, CO

Average snowfall days in December - Otis, CO
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 6h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in December
Otis, CO

Average sunshine days in December - Otis, CO
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in December
Otis, CO

Average UV index in December - Otis, 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
Otis, CO

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

The month with the most cloud cover is February (Cloud cover 31).
The months with the least cloud cover are August and September (Cloud cover 17).

Average visibility in December
Otis, CO

Average visibility in December - Otis, 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).

Otis, Colorado, USA

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