December weather forecast
Presto, PA

Share

Weather in December

The first month of the winter, December, is also an icy month in Presto, Pennsylvania, with an average temperature ranging between min 28.4°F (-2°C) and max 39.7°F (4.3°C).

Temperature

In Presto, the average high-temperature in December decreases from a frosty 49.3°F (9.6°C) in November to a wintry 39.7°F (4.3°C). Presto cools down to an average low-temperature of 28.4°F (-2°C) throughout the month of December.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Presto, during December, the rain falls for 8.2 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 132.6 rainfall days, and 11.5" (292mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Presto, in December, during 6.4 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 32.5 snowfall days, and 3.66" (93mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:04 pm EST.

Sunshine

In Presto, the average sunshine in December is 3.4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

Presto in December has an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 28.4°F (-2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 87.8°F (31°C).

What is the average humidity in December?

In Presto, the average relative humidity in December is 83%.

How many days does it rain in December?

In Presto, in December, it is raining for 8.2 days, with typically 0.87" (22mm) of accumulated precipitation.

How much does it snow in December?

In Presto, during December, snow falls for 6.4 days and regularly aggregates up to 0.59" (15mm) of snow.

What is the month with the shortest days in Presto?

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

What is the average length of the day in December?

The average day length in December is 9h and 21min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:04 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.4h.

What is the month with the lowest UV index in Presto?

The month with the lowest UV index in Presto is December, with an average maximum UV index of 1.

How high is the UV index in December?

In Presto, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Presto, PA

Average temperature in December - Presto, PA
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in December
Presto, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Presto, PA

Average wind speed in December - Presto, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Presto, PA

Average humidity in December - Presto, 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 (75%).

Average rainfall in December
Presto, PA

Average rainfall in December - Presto, PA
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in December
Presto, PA

Average rainfall days in December - Presto, PA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December
Presto, PA

Average snowfall in December - Presto, PA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Presto, PA

Average snowfall days in December - Presto, PA
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (9.3 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
Presto, PA

Average daylight in December / Average sunshine in December - Presto, 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 18min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Presto, PA

Average sunshine days in December - Presto, PA
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in December
Presto, PA

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

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

Average cloud cover in December
Presto, PA

Average cloud cover in December - Presto, PA
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Presto, PA

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

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

Presto, Pennsylvania, USA

Weather forecast for your location

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