December weather forecast
Agate, CO

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Weather in December

December, the first month of the winter in Agate, is still a cold month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 39°F (3.9°C).

Temperature

December, with its average high-temperature of 39°F (3.9°C) and an average low-temperature of 22.3°F (-5.4°C), holds the record as the coldest month.

Humidity

The average relative humidity in December is 60%.

Rainfall

The month with the least rainfall in Agate is December, when the rain falls for 2.5 days and typically collects 0.2" (5mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Agate, during December, snow falls for 3.5 days and regularly aggregates up to 0.75" (19mm) of snow. In Agate, during the entire year, snow falls for 26.7 days and aggregates up to 9.02" (229mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 6:57 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:42 pm MST.

Sunshine

The average sunshine in December is 6.8h.

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 estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Agate, December is the month with the lowest recorded average temperatures, measuring a high of 39°F (3.9°C) and a low of 22.3°F (-5.4°C).

How cold is December?

The average high-temperature, in December, in Agate, is 39°F (3.9°C), while the average low-temperature is 22.3°F (-5.4°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 84.2°F (29°C).

What is the average humidity in December?

In December, the average relative humidity is 60%.

What is the driest month?

The month with the least rainfall in Agate is December, when the rain falls for 2.5 days and typically collects 0.2" (5mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 2.5 days. Throughout December, 0.2" (5mm) of precipitation is accumulated.

How much does it snow in December?

In Agate, in December, snow falls for 3.5 days, with typically accumulated 0.75" (19mm) 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.

What is the average length of the day in December in Agate?

In December, the average day length is 9h and 26min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:32 pm. On the last day of the month, in Agate, sunrise is at 7:15 am and sunset at 4:42 pm MST.

How long on average sun shines in December?

The average sunshine duration in December is 6.8h.

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 Agate?

In Agate, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
Agate, CO

Average temperature in December - Agate, CO
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (39°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).

Average pressure in December
Agate, CO

Average pressure in December - Agate, CO
  • Average pressure in December: 30.09"Hg

The months with the highest atmospheric pressure are January and December (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Agate, CO

Average wind speed in December - Agate, CO
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

Average humidity in December
Agate, CO

Average humidity in December - Agate, CO
  • Average humidity in December: 60%

The month with the highest relative humidity is February (63%).
The months with the lowest relative humidity are June and September (46%).

Average rainfall in December
Agate, CO

Average rainfall in December - Agate, CO
  • Average rainfall in December: 0.2"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is December (0.2").

Average rainfall days in December
Agate, CO

Average rainfall days in December - Agate, CO
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (1.7 days).

Average snowfall in December
Agate, CO

Average snowfall in December - Agate, CO
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Agate, CO

Average snowfall days in December - Agate, CO
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Agate, 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 5min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in December
Agate, CO

Average sunshine days in December - Agate, CO
  • Average sunshine days in December: 24.9 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in December
Agate, CO

Average UV index in December - Agate, 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
Agate, CO

Average cloud cover in December - Agate, CO
  • Average cloud cover in December: 25

The months with the most cloud cover are February and April (Cloud cover 27).
The months with the least cloud cover are June and September (Cloud cover 16).

Average visibility in December
Agate, CO

Average visibility in December - Agate, 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).

Agate, Colorado, USA

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