December weather forecast
Gill, CO

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Weather in December

December, the first month of the winter in Gill, is also a wintry month, with an average temperature varying between 20.1°F (-6.6°C) and 38.3°F (3.5°C).

Temperature

The coldest period is December, when temperatures fluctuate between an average high of 38.3°F (3.5°C) and a low of 20.1°F (-6.6°C).

Humidity

January and December, with an average relative humidity of 64%, are the most humid months.

Rainfall

December is the month with the least rainfall. Rain falls for 1.7 days and accumulates 0.2" (5mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Gill, in December, snow falls for 4.5 days, with typically accumulated 1.18" (30mm) of snow. In Gill, during the entire year, snow falls for 26.6 days and aggregates up to 13.62" (346mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:41 pm MST.

Sunshine

February and December, with an average of 6.6h of sunshine, are months with the least sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gill. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What is the coldest month?

Gill's coldest weather arrives in December, when temperatures average a high of 38.3°F (3.5°C) and a low of 20.1°F (-6.6°C).

How cold is it in December?

In Gill, in December, the average high-temperature is 38.3°F (3.5°C), and the average low-temperature is 20.1°F (-6.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What are the most humid months?

The months with the highest humidity are January and December, with an average relative humidity of 64%.

What is the average humidity in December in Gill?

In Gill, the average relative humidity in December is 64%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 1.7 days and accumulates 0.2" (5mm) of precipitation.

How much does it rain in December?

In Gill, Colorado, during December, the rain falls for 1.7 days and regularly aggregates up to 0.2" (5mm) of precipitation.

How many days does it snow in December?

In Gill, in December, snow falls for 4.5 days, with typically accumulated 1.18" (30mm) of snow.

What is the month with the shortest days in Gill?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Gill have in December?

In Gill, the average day length in December is 9h and 20min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:41 pm MST.

What is the month with the least sunshine in Gill?

February and December, with an average of 6.6h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 6.6h.

When is the lowest UV index?

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

What is the UV index reading in December in Gill?

In Gill, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Gill, CO

Average temperature in December - Gill, CO
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (38.3°F).

  • Average low temperature in December: 20.1°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).

Average pressure in December
Gill, CO

Average pressure in December - Gill, CO
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Gill, CO

Average wind speed in December - Gill, CO
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).

Average humidity in December
Gill, CO

Average humidity in December - Gill, CO
  • Average humidity in December: 64%

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

Average rainfall in December
Gill, CO

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

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.2").

Average rainfall days in December
Gill, CO

Average rainfall days in December - Gill, CO
  • Average rainfall days in December: 1.7 days

The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is November (1.6 days).

Average snowfall in December
Gill, CO

Average snowfall in December - Gill, CO
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Gill, CO

Average snowfall days in December - Gill, CO
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Gill, 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 4min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).

Average sunshine days in December
Gill, CO

Average sunshine days in December - Gill, CO
  • Average sunshine days in December: 25.9 days

The month with the most sunshine days is December (25.9 days).
The month with the least sunshine days is July (16.7 days).

Average UV index in December
Gill, CO

Average UV index in December - Gill, 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
Gill, CO

Average cloud cover in December - Gill, CO
  • Average cloud cover in December: 27

The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 16).

Average visibility in December
Gill, CO

Average visibility in December - Gill, 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).

Gill, Colorado, USA

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