December weather forecast
Lay, CO

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Weather in December

The first month of the winter, December, is still a freezing cold month in Lay, Colorado, with temperature in the range of an average high of 28.9°F (-1.7°C) and an average low of 12.7°F (-10.7°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a cold 41.4°F (5.2°C) in November to a subzero cold 28.9°F (-1.7°C). Nighttime temperatures in December average to an extreme cold 12.7°F (-10.7°C).

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Lay, in December, it is raining for 3.5 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Lay, there are 76.8 rainfall days, and 9.88" (251mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. The month with the most snowfall in Lay is December, when snow falls for 11.9 days and typically aggregates up to 7.28" (185mm) of snow.

Daylight

The month with the shortest days in Lay is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:54 pm MST.

Sunshine

In Lay, the average sunshine in December is 6h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Lay, Colorado. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
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. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Lay in December?

In December, in Lay, the average high-temperature is 28.9°F (-1.7°C), and the average low-temperature is 12.7°F (-10.7°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 80.6°F (27°C).

What is the average humidity in December in Lay?

In Lay, Colorado, the average relative humidity in December is 80%.

How many days does it rain in December in Lay?

In Lay, Colorado, in December, during 3.5 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

What is the snowiest month in Lay?

December is the month with the most snowfall in Lay. Snow falls for 11.9 days and accumulates 7.28" (185mm) of snow.

How much does it snow in Lay in December?

In December, in Lay, Colorado, it is snowing for 11.9 days. Throughout December, 7.28" (185mm) of snow is accumulated.

What is the month with the shortest days in Lay?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

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

The average day length in December is 9h and 20min.

What time are sunrise and sunset in December in Lay?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:45 pm. On the last day of the month, in Lay, sunrise is at 7:34 am and sunset at 4:54 pm MST.

How many hours of sunshine does Lay have in December?

The average sunshine duration in December in Lay is 6h.

When is the lowest UV index in Lay?

The months with the lowest UV index in Lay are January through March, October through December, with an average maximum UV index of 2.

What is the UV index reading in December in Lay?

In December, the average daily maximum UV index in Lay, Colorado, is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Lay, CO

Average temperature in December - Lay, CO
  • Average high temperature in December: 28.9°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

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Average pressure in December
Lay, CO

Average pressure in December - Lay, CO
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.92"Hg).

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Average wind speed in December
Lay, CO

Average wind speed in December - Lay, CO
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).

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Average humidity in December
Lay, CO

Average humidity in December - Lay, CO
  • Average humidity in December: 80%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in December
Lay, CO

Average rainfall in December - Lay, CO
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is April (1.38").
The driest months (with the least rainfall) are August and September (0.39").

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Average rainfall days in December
Lay, CO

Average rainfall days in December - Lay, CO
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (3.1 days).

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Average snowfall in December
Lay, CO

Average snowfall in December - Lay, CO
  • Average snowfall in December: 7.28"

The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Lay, CO

Average snowfall days in December - Lay, CO
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Lay, 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 18min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days in December
Lay, CO

Average sunshine days in December - Lay, CO
  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is June (22.8 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in December
Lay, CO

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Lay, CO

Average cloud cover in December - Lay, CO
  • Average cloud cover in December: 38

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 12).

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Average visibility in December
Lay, CO

Average visibility in December - Lay, CO
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Lay, Colorado, USA

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