December weather forecast
Whitewater, CO

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Weather in December

December, the first month of the winter in Whitewater, is still a cold month, with temperature in the range of an average high of 36.3°F (2.4°C) and an average low of 20.5°F (-6.4°C).

Temperature

Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 49.1°F (9.5°C) in November to a cold 36.3°F (2.4°C). Whitewater's December nights cool down to an average low-temperature of 20.5°F (-6.4°C).

Humidity

In December, the average relative humidity is 69%.

Rainfall

In Whitewater, in December, during 7.5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 93.6 rainfall days, and 8.46" (215mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is December, when snow falls for 6.9 days and typically aggregates up to 3.74" (95mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:01 pm MST.

Sunshine

In December, the average sunshine is 6.7h.

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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, in Whitewater, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 20.5°F (-6.4°C).

What is the average humidity in December?

In Whitewater, Colorado, the average relative humidity in December is 69%.

How much does it rain in December?

In December, the rain falls for 7.5 days. Throughout December, 0.79" (20mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 6.9 days and typically aggregates up to 3.74" (95mm) of snow.

How many days does it snow in December?

In Whitewater, in December, during 6.9 snowfall days, 3.74" (95mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

How many hours of daylight does Whitewater have in December?

In December, the average day length is 9h and 29min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:01 pm MST.

How many hours of sunshine does Whitewater have in December?

The average sunshine duration in December is 6.7h.

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 Whitewater, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Whitewater, CO

Average temperature in December - Whitewater, CO
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in December: 20.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in December
Whitewater, CO

Average pressure in December - Whitewater, CO
  • Average pressure in December: 30.19"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).

Average wind speed in December
Whitewater, CO

Average wind speed in December - Whitewater, CO
  • Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in December
Whitewater, CO

Average humidity in December - Whitewater, CO
  • Average humidity in December: 69%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is June (29%).

Average rainfall in December
Whitewater, CO

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

The wettest month (with the highest rainfall) is March (1.06").
The driest month (with the least rainfall) is June (0.51").

Average rainfall days in December
Whitewater, CO

Average rainfall days in December - Whitewater, CO
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is November (5.5 days).

Average snowfall in December
Whitewater, CO

Average snowfall in December - Whitewater, CO
  • Average snowfall in December: 3.74"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Whitewater, CO

Average snowfall days in December - Whitewater, CO
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Whitewater, CO
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).

Average sunshine days in December
Whitewater, CO

Average sunshine days in December - Whitewater, CO
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is February (15.8 days).

Average UV index in December
Whitewater, CO

Average UV index in December - Whitewater, 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
Whitewater, CO

Average cloud cover in December - Whitewater, CO
  • Average cloud cover in December: 28

The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 11).

Average visibility in December
Whitewater, CO

Average visibility in December - Whitewater, CO
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Whitewater, Colorado, USA

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