December weather forecast
Nederland, CO

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A unique shot of the calm blue water at the base of the magnificent Rocky Mountains in Nederland, Colorado
A unique shot of the calm blue water at the base of the magnificent Rocky Mountains in Nederland, Colorado

Weather in December

December delivers Nederland into the full swing of winter, much like the beginning of the year. The mercury takes a deep dive, swinging between 13.8°F (-10.1°C) to 30°F (-1.1°C). The city decorates itself in a winter wonderland, evoking the festive spirit characteristic of the holiday season. The days end as early as they start, highlighting the longest nights of the year, thus welcoming a new cycle of Nederland's diverse weather as the year comes to a close.

Temperature

In Nederland, the lowest average temperatures are observed in December, with a high of 30°F (-1.1°C) and a low of 13.8°F (-10.1°C).

Humidity

In Nederland, the average relative humidity in December is 71%.

Rainfall

In Nederland, in December, during 4.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Nederland, Colorado, during the entire year, the rain falls for 112.5 days and collects up to 21.65" (550mm) of precipitation.

Snowfall

January through June, August through December are months with snowfall. In December, in Nederland, it is snowing for 11.9 days. Throughout December, 6.42" (163mm) of snow is accumulated. In Nederland, during the entire year, snow falls for 94.8 days and aggregates up to 86.42" (2195mm) 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 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:47 pm MST.

Sunshine

In Nederland, the average sunshine in December is 6.4h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the coldest time of year?

In Nederland, December is the coldest month, with temperatures averaging a high of 30°F (-1.1°C) and a low of 13.8°F (-10.1°C).

How cold is December?

In December, the average high-temperature and low-temperature are 30°F (-1.1°C) and 13.8°F (-10.1°C) respectively.

What is the average humidity in December?

In December, the average relative humidity in Nederland is 71%.

How much does it rain in December?

In December, in Nederland, the rain falls for 4.8 days. Throughout December, 0.79" (20mm) of precipitation is accumulated.

How much does it snow in December?

In Nederland, in December, snow falls for 11.9 days, with typically accumulated 6.42" (163mm) 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 Nederland, the average day length in December is 9h and 23min.

When are sunrise and sunset in December in Nederland?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:47 pm MST.

How many hours of sunshine does Nederland have in December?

In Nederland, the average sunshine duration in December is 6.4h.

What are the months with the lowest UV index?

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

What is the UV index reading in December in Nederland?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Nederland, CO

Average temperature in December - Nederland, CO
  • Average high temperature in December: 30°F

The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (30°F).

  • Average low temperature in December: 13.8°F

The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

Average pressure in December
Nederland, CO

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).

Average wind speed in December
Nederland, CO

Average wind speed in December - Nederland, CO
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in December
Nederland, CO

Average humidity in December - Nederland, CO
  • Average humidity in December: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (48%).

Average rainfall in December
Nederland, CO

Average rainfall in December - Nederland, CO
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in December
Nederland, CO

Average rainfall days in December - Nederland, CO
  • Average rainfall days in December: 4.8 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (2.6 days).

Average snowfall in December
Nederland, CO

Average snowfall in December - Nederland, CO
  • Average snowfall in December: 6.42"

The month with the highest snowfall is April (16.54").
The month with the least snowfall is July (0").

Average snowfall days in December
Nederland, CO

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

The month with the highest number of snowfall days is March (14.5 days).
The month with the least snowfall days is July (0 days).

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

Average daylight in December / Average sunshine in December - Nederland, 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 2min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

Average sunshine days in December
Nederland, CO

Average sunshine days in December - Nederland, CO
  • Average sunshine days in December: 18 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (9 days).

Average UV index in December
Nederland, CO

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

The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in December
Nederland, CO

Average cloud cover in December - Nederland, CO
  • Average cloud cover in December: 31

The month with the most cloud cover is May (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 20).

Average visibility in December
Nederland, CO

Average visibility in December - Nederland, 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).

Nederland, Colorado, USA

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