December weather forecast
Denver, PA

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Weather in December

December, the first month of the winter in Denver, is also an icy month, with an average temperature varying between 41.2°F (5.1°C) and 29.8°F (-1.2°C).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a cool 50.4°F (10.2°C) in November to a wintry 41.2°F (5.1°C). Denver's nights in December cool down to an average low-temperature of 29.8°F (-1.2°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In Denver, in December, during 8.6 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, in Denver, there are 127.9 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Snowfall

January through March, May, November and December are months with snowfall. In Denver, during December, snow falls for 3 days and regularly aggregates up to 0.43" (11mm) of snow. In Denver, during the entire year, snow falls for 18.5 days and aggregates up to 3.86" (98mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
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. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Denver, in December, the average high-temperature is 41.2°F (5.1°C), and the average low-temperature is 29.8°F (-1.2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 86°F (30°C).

What is the average humidity in December?

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

How much does it rain in December?

In Denver, in December, it is raining for 8.6 days, with typically 0.83" (21mm) of accumulated precipitation.

How much does it snow in December?

In Denver, Pennsylvania, in December, snow falls for 3 days, with typically accumulated 0.43" (11mm) 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 Denver, Pennsylvania, the average day length in December is 9h and 22min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm EST.

How many hours of sunshine does Denver have in December?

In Denver, the average sunshine duration in December is 4.8h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In Denver, 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
Denver, PA

Average temperature in December - Denver, PA
  • Average high temperature in December: 41.2°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 (35.2°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Denver, PA

Average pressure in December - Denver, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Denver, PA

Average wind speed in December - Denver, PA
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Denver, PA

Average humidity in December - Denver, PA
  • Average humidity in December: 80%

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Denver, PA

Average rainfall in December - Denver, PA
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in December
Denver, PA

Average rainfall days in December - Denver, PA
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in December
Denver, PA

Average snowfall in December - Denver, PA
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in December
Denver, PA

Average snowfall days in December - Denver, PA
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Denver, PA

Average daylight in December / Average sunshine in December - Denver, PA
  • 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Denver, PA

Average sunshine days in December - Denver, PA
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in December
Denver, PA

Average UV index in December - Denver, PA
  • Average UV index in December: 2

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

Average cloud cover in December
Denver, PA

Average cloud cover in December - Denver, PA
  • Average cloud cover in December: 49

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Denver, PA

Average visibility in December - Denver, PA
  • Average visibility in December: 6mi

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

Denver, Pennsylvania, USA

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