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
Observing a mild shift, the average high-temperature during December reduces from November's frosty 43.3°F (6.3°C) to an icy 33.4°F (0.8°C). Ellisburg throughout December, records an average low-temperature of 23.7°F (-4.6°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Ellisburg, in December, it is raining for 10.4 days, with typically 2.8" (71mm) of accumulated precipitation. In Ellisburg, during the entire year, the rain falls for 168.4 days and collects up to 31.57" (802mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 19.6 days. Throughout December, 9.96" (253mm) of snow is accumulated. Throughout the year, there are 98.2 snowfall days, and 52.05" (1322mm) of snow is accumulated.Daylight
December has the shortest days of the year in Ellisburg, Pennsylvania, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:50 pm EST.
Sunshine
In December, the average sunshine is 2.7h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Ellisburg have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Ellisburg have in December?
What is the month with the lowest UV index?
What is the UV index reading in December in Ellisburg?
Average temperature in December
Ellisburg, PA
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in December
Ellisburg, 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
Ellisburg, PA
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Ellisburg, PA
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Ellisburg, PA
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is August (2.09").
Average rainfall days in December
Ellisburg, PA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Ellisburg, PA
- Average snowfall in December: 9.96"
The month with the highest snowfall is February (12.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ellisburg, PA
- Average snowfall days in December: 19.6 days
The month with the highest number of snowfall days is January (21.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ellisburg, 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: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Ellisburg, PA
- Average sunshine days in December: 5.9 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in December
Ellisburg, 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
Ellisburg, PA
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Ellisburg, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
Ellisburg, Pennsylvania, USA
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