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
In December, the meteorological conditions alter, with the average high-temperature shifting from a frosty 46.8°F (8.2°C) in November to an icy 36.9°F (2.7°C). In December, the temperature drops to an average of 26.4°F (-3.1°C) at night.Humidity
February and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In December, the rain falls for 12.6 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In University Park, during the entire year, the rain falls for 175.7 days and collects up to 30.94" (786mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 11.5 days. Throughout December, 4.45" (113mm) of snow is accumulated. In University Park, Pennsylvania, during the entire year, snow falls for 59 days and aggregates up to 26.3" (668mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December in University Park is 3.7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, an average UV index of 1 transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What are the most humid months?
What is the average humidity in December in University Park?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
University Park, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
University Park, 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
University Park, PA
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
University Park, PA
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
University Park, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in December
University Park, PA
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in December
University Park, PA
- Average snowfall in December: 4.45"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
University Park, PA
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
University Park, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
University Park, PA
- Average sunshine days in December: 12 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in December
University Park, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
University Park, PA
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
University Park, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
University Park, Pennsylvania, USA
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