December weather forecast
Glen Haven, CO

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Weather in December

December, the first month of the winter in Glen Haven, is still a freezing cold month, with temperature in the range of an average high of 28.6°F (-1.9°C) and an average low of 12.6°F (-10.8°C).

Temperature

Temperature records mark December as the coldest month, with highs averaging 28.6°F (-1.9°C) and lows at 12.6°F (-10.8°C).

Humidity

In December, the average relative humidity in Glen Haven is 73%.

Rainfall

December is the month with the least rainfall. Rain falls for 6.3 days and accumulates 1.02" (26mm) of precipitation.

Snowfall

Months with snowfall in Glen Haven are January through June, August through December. In December, in Glen Haven, it is snowing for 15.7 days. Throughout December, 8.31" (211mm) of snow is accumulated. In Glen Haven, during the entire year, snow falls for 114.1 days and aggregates up to 105.67" (2684mm) of snow.

Daylight

December has the shortest days of the year in Glen Haven, Colorado, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:45 pm MST.

Sunshine

The average sunshine in December in Glen Haven is 6.2h.

UV index

January through April, 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 unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the coldest time of year in Glen Haven?

December, on average, is the coldest month in Glen Haven, Colorado, registering a high temperature of 28.6°F (-1.9°C) and a low of 12.6°F (-10.8°C).

How cold is it in Glen Haven in December?

The average high-temperature, in December, in Glen Haven, is 28.6°F (-1.9°C), while the average low-temperature is 12.6°F (-10.8°C).

What is the average humidity in December in Glen Haven?

In Glen Haven, the average relative humidity in December is 73%.

What is the driest month in Glen Haven?

December is the month with the least rainfall in Glen Haven. Rain falls for 6.3 days and accumulates 1.02" (26mm) of precipitation.

How much does it rain in Glen Haven in December?

In December, the rain falls for 6.3 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

How much does it snow in Glen Haven in December?

In Glen Haven, in December, snow falls for 15.7 days, with typically accumulated 8.31" (211mm) of snow.

What is the month with the shortest days in Glen Haven?

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

What is the average length of the day in December in Glen Haven?

In December, the average day length in Glen Haven, Colorado, is 9h and 20min.

What time are sunrise and sunset in December in Glen Haven?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:45 pm MST.

How many hours of sunshine does Glen Haven have in December?

The average sunshine duration in December is 6.2h.

When is the lowest UV index in Glen Haven?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Glen Haven.

What is the UV index reading in December in Glen Haven?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Glen Haven, CO

Average temperature in December - Glen Haven, CO
  • Average high temperature in December: 28.6°F

The warmest month (with the highest average high temperature) is July (72.5°F).
The month with the lowest average high temperature is December (28.6°F).

  • Average low temperature in December: 12.6°F

The month with the highest average low temperature is July (49.3°F).
The coldest months (with the lowest average low temperature) are February and December (12.6°F).

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Average pressure in December
Glen Haven, CO

Average pressure in December - Glen Haven, CO
  • Average pressure in December: 30.14"Hg

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

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Average wind speed in December
Glen Haven, CO

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

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Glen Haven, CO

Average humidity in December - Glen Haven, CO
  • Average humidity in December: 73%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is June (50%).

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Average rainfall in December
Glen Haven, CO

Average rainfall in December - Glen Haven, CO
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is December (1.02").

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Average rainfall days in December
Glen Haven, CO

Average rainfall days in December - Glen Haven, CO
  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (3.6 days).

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Average snowfall in December
Glen Haven, CO

Average snowfall in December - Glen Haven, CO
  • Average snowfall in December: 8.31"

The month with the highest snowfall is April (21.3").
The month with the least snowfall is July (0").

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Average snowfall days in December
Glen Haven, CO

Average snowfall days in December - Glen Haven, CO
  • Average snowfall days in December: 15.7 days

The month with the highest number of snowfall days is March (16.8 days).
The month with the least snowfall days is July (0 days).

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Average daylight in December /
Average sunshine in December
Glen Haven, CO

Average daylight in December / Average sunshine in December - Glen Haven, 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 1min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

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Average sunshine days in December
Glen Haven, CO

Average sunshine days in December - Glen Haven, CO
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is September (19.4 days).
The month with the least sunshine days is May (8.2 days).

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Average UV index in December
Glen Haven, CO

Average UV index in December - Glen Haven, CO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in December
Glen Haven, CO

Average cloud cover in December - Glen Haven, CO
  • Average cloud cover in December: 34

The months with the most cloud cover are February and May (Cloud cover 39).
The months with the least cloud cover are June and September (Cloud cover 22).

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Average visibility in December
Glen Haven, CO

Average visibility in December - Glen Haven, 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).

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Glen Haven, Colorado, USA

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