December weather forecast
Greensboro, PA

Share

Weather in December

The first month of the winter, December, is also an icy month in Greensboro, Pennsylvania, with an average temperature fluctuating between 29.1°F (-1.6°C) and 40.1°F (4.5°C).

Temperature

A shift in the average high-temperature occurs in December, reducing from a chilly 49.8°F (9.9°C) in November to an icy 40.1°F (4.5°C). Greensboro, in December, observes a steady average low-temperature of 29.1°F (-1.6°C).

Humidity

The average relative humidity in December is 83%.

Rainfall

In Greensboro, in December, it is raining for 9.1 days, with typically 1.1" (28mm) of accumulated precipitation. In Greensboro, during the entire year, the rain falls for 143.4 days and collects up to 13.19" (335mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 11.4 days. Throughout December, 2.44" (62mm) of snow is accumulated. Throughout the year, there are 56 snowfall days, and 11.54" (293mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:05 pm EST.

Sunshine

The average sunshine in December is 3.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the UV index of 1 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is it in December?

In Greensboro, in December, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 29.1°F (-1.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 83%.

How much does it rain in December?

In Greensboro, in December, it is raining for 9.1 days, with typically 1.1" (28mm) of accumulated precipitation.

How many days does it snow in December?

In Greensboro, in December, snow falls for 11.4 days, with typically accumulated 2.44" (62mm) of snow.

What is the month with the shortest days in Greensboro?

The month with the shortest days in Greensboro is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Greensboro, the average day length in December is 9h and 25min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:05 pm EST.

How long on average sun shines in December?

In Greensboro, the average sunshine duration in December is 3.8h.

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index intensity in December?

In Greensboro, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Greensboro, PA

Average temperature in December - Greensboro, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Greensboro, PA

Average pressure in December - Greensboro, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Greensboro, PA

Average wind speed in December - Greensboro, PA
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Greensboro, PA

Average humidity in December - Greensboro, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in December
Greensboro, PA

Average rainfall in December - Greensboro, PA
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in December
Greensboro, PA

Average rainfall days in December - Greensboro, PA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Greensboro, PA

Average snowfall in December - Greensboro, PA
  • Average snowfall in December: 2.44"

The month with the highest snowfall is January (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Greensboro, PA

Average snowfall days in December - Greensboro, PA
  • Average snowfall days in December: 11.4 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Greensboro, PA
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Greensboro, PA

Average sunshine days in December - Greensboro, PA
  • Average sunshine days in December: 13.2 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is January (9.1 days).

Average UV index in December
Greensboro, PA

Average UV index in December - Greensboro, PA
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Greensboro, PA

Average cloud cover in December - Greensboro, PA
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Greensboro, PA

Average visibility in December - Greensboro, PA
  • Average visibility in December: 5mi

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

Greensboro, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location