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
As November transitions into December, Gettysburg sees a drop in the average high-temperature, transitioning from a frosty 48.4°F (9.1°C) to an icy 37.8°F (3.2°C). The average low-temperature, in December, is a subzero cold 27.7°F (-2.4°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Gettysburg, in December, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Gettysburg, there are 145.2 rainfall days, and 19.21" (488mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Gettysburg, Ohio, in December, snow falls for 7.7 days, with typically accumulated 1.26" (32mm) of snow. Throughout the year, there are 35.1 snowfall days, and 6.34" (161mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Gettysburg.On the first day of December in Gettysburg, sunrise is at 7:41 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:22 pm EST.
Sunshine
In December, the average sunshine in Gettysburg is 3.9h.UV index
December is the month with the lowest UV index in Gettysburg, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Gettysburg during December?
What is the average humidity in December in Gettysburg?
How many days does it rain in December in Gettysburg?
How many days does it snow in December in Gettysburg?
What is the month with the shortest days in Gettysburg?
What is the average length of the day in December in Gettysburg?
When are sunrise and sunset in December in Gettysburg?
How many hours of sunshine does Gettysburg have in December?
When is the lowest UV index in Gettysburg?
What is the UV index intensity in December in Gettysburg?
Average temperature in December
Gettysburg, OH
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Gettysburg, OH
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Gettysburg, OH
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Gettysburg, OH
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Gettysburg, OH
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in December
Gettysburg, OH
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Gettysburg, OH
- Average snowfall in December: 1.26"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Gettysburg, OH
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gettysburg, OH
- 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 24min).
- Average sunshine in December: 3h and 5min
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
Gettysburg, OH
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Gettysburg, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Gettysburg, OH
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Gettysburg, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Gettysburg, Ohio, USA
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