Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December weather is marked by a drop in the average high-temperature, falling from a chilly 48.4°F (9.1°C) in November to a cold 38.7°F (3.7°C). An average nighttime temperature of 27.3°F (-2.6°C) is observed during December.Humidity
In December, the average relative humidity in Vandergrift Heights, Pennsylvania, is 84%.Rainfall
In Vandergrift Heights, Pennsylvania, in December, it is raining for 10.1 days, with typically 1.38" (35mm) of accumulated precipitation. In Vandergrift Heights, Pennsylvania, during the entire year, the rain falls for 147.1 days and collects up to 18.54" (471mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Vandergrift Heights, Pennsylvania, during December, snow falls for 9.1 days and regularly aggregates up to 2.2" (56mm) of snow. Throughout the year, in Vandergrift Heights, there are 45.9 snowfall days, and 11.3" (287mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Vandergrift Heights.On the first day of December in Vandergrift Heights, sunrise is at 7:23 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:01 pm EST.
Sunshine
In December, the average sunshine in Vandergrift Heights is 3.1h.UV index
The month with the lowest UV index in Vandergrift Heights is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Vandergrift Heights?
What is the average humidity in December in Vandergrift Heights?
How much does it rain in Vandergrift Heights in December?
How many days does it snow in December in Vandergrift Heights?
What is the month with the shortest days in Vandergrift Heights?
What is the average length of the day in December in Vandergrift Heights?
What time are sunrise and sunset in December in Vandergrift Heights?
How many hours of sunshine does Vandergrift Heights have in December?
When is the lowest UV index in Vandergrift Heights?
What is the UV index reading in December in Vandergrift Heights?
Average temperature in December
Vandergrift Heights, PA
- Average high temperature in December: 38.7°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 (32.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Vandergrift Heights, 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 (29.95"Hg).
Average wind speed in December
Vandergrift Heights, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Vandergrift Heights, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Vandergrift Heights, PA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in December
Vandergrift Heights, PA
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in December
Vandergrift Heights, PA
- Average snowfall in December: 2.2"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Vandergrift Heights, PA
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vandergrift Heights, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Vandergrift Heights, PA
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10 days).
Average UV index in December
Vandergrift Heights, 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
Vandergrift Heights, PA
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Vandergrift Heights, 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).
Vandergrift Heights, Pennsylvania, USA
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