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
The onset of December brings a small change in high-temperatures, falling from a chilly 47.5°F (8.6°C) in November to an icy 38.1°F (3.4°C). Throughout December, the temperature falls to an average low of 27.3°F (-2.6°C).Humidity
February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Walcksville, during December, the rain falls for 9.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 150.3 rainfall days, and 26.61" (676mm) of precipitation is accumulated.Snowfall
Months with snowfall in Walcksville are January through May, October through December. In December, it is snowing for 4.1 days. Throughout December, 2.36" (60mm) of snow is accumulated. Throughout the year, there are 26.6 snowfall days, and 14.25" (362mm) 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 December, sunrise is at 7:08 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:44 pm EST.
Sunshine
In Walcksville, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Experience reduced UV exposure by about half when donning a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Walcksville have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Walcksville, PA
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Walcksville, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Walcksville, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Walcksville, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Walcksville, PA
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Walcksville, PA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Walcksville, PA
- Average snowfall in December: 2.36"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Walcksville, PA
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Walcksville, 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: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Walcksville, PA
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Walcksville, PA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Walcksville, PA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Walcksville, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Walcksville, Pennsylvania, USA
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