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
Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 45.5°F (7.5°C) in November to a wintry 35.2°F (1.8°C). In Wilawana, the expected average low-temperature for December is a freezing cold 25.5°F (-3.6°C).Humidity
In Wilawana, the average relative humidity in December is 83%.Rainfall
In Wilawana, in December, during 10.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 153.6 rainfall days, and 23.78" (604mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Wilawana, in December, snow falls for 13.1 days, with typically accumulated 3.39" (86mm) of snow. Throughout the year, there are 69.1 snowfall days, and 21.69" (551mm) of snow is accumulated.Daylight
December has the shortest days of the year in Wilawana, Pennsylvania, with an average of 9h and 12min of daylight.On the first day of December in Wilawana, sunrise is at 7:15 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:45 pm EST.
Sunshine
In December, the average sunshine is 3.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Wilawana?
What is the average humidity in December in Wilawana?
How much does it rain in Wilawana in December?
How many days does it snow in December in Wilawana?
What is the month with the shortest days in Wilawana?
What is the average length of the day in December in Wilawana?
When is the sunrise / sunset in December in Wilawana?
How long on average sun shines in December in Wilawana?
What is the month with the lowest UV index in Wilawana?
What is the UV index intensity in December in Wilawana?
Average temperature in December
Wilawana, PA
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in December
Wilawana, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Wilawana, PA
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Wilawana, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April, May, June and July (78%).
Average rainfall in December
Wilawana, PA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Wilawana, PA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Wilawana, PA
- Average snowfall in December: 3.39"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Wilawana, PA
- Average snowfall days in December: 13.1 days
The month with the highest number of snowfall days is February (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
Wilawana, PA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Wilawana, PA
- Average sunshine days in December: 10 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Wilawana, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Wilawana, PA
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Wilawana, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Wilawana, Pennsylvania, USA
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