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 start of December involves a temperature drop, moving from a chilly 45.3°F (7.4°C) in November to a cold 33.8°F (1°C). During December, Rock City Falls records an average temperature of 24.4°F (-4.2°C) at night.Humidity
In December, the average relative humidity is 80%.Rainfall
In Rock City Falls, during December, the rain falls for 8.8 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Rock City Falls, New York, during the entire year, the rain falls for 140.7 days and collects up to 31.02" (788mm) of precipitation.Snowfall
Months with snowfall in Rock City Falls are January through May, October through December. In Rock City Falls, in December, snow falls for 8.2 days, with typically accumulated 5.71" (145mm) of snow. Throughout the year, there are 43.3 snowfall days, and 27.44" (697mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:30 pm EST.
Sunshine
The average sunshine in December is 4.1h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December in Rock City Falls?
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 is the sunrise / sunset in December in Rock City Falls?
How many hours of sunshine does Rock City Falls have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Rock City Falls, NY
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Rock City Falls, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Rock City Falls, NY
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Rock City Falls, NY
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Rock City Falls, NY
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is March (1.97").
Average rainfall days in December
Rock City Falls, NY
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Rock City Falls, NY
- Average snowfall in December: 5.71"
The month with the highest snowfall is January (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rock City Falls, NY
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rock City Falls, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Rock City Falls, NY
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Rock City Falls, NY
- 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 February and December (UV index 1).
Average cloud cover in December
Rock City Falls, NY
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Rock City Falls, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August and September (5mi).
Rock City Falls, New York, USA
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