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 arrival of December indicates a decrease in the average high-temperature, moving from a chilly 45.3°F (7.4°C) in November to an icy 34.7°F (1.5°C). Nights in December showcase an average temperature of 25.7°F (-3.5°C), slightly cooler than the daytime.Humidity
In Petty Corner, New York, the average relative humidity in December is 85%.Rainfall
In Petty Corner, during December, the rain falls for 9.9 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Petty Corner, New York, during the entire year, the rain falls for 164.7 days and collects up to 29.17" (741mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Petty Corner. In December, in Petty Corner, it is snowing for 16 days. Throughout December, 7.24" (184mm) of snow is accumulated. Throughout the year, there are 80.8 snowfall days, and 35.91" (912mm) of snow is accumulated.Daylight
December has the shortest days of the year in Petty Corner, with an average of 9h and 6min of daylight.On the first day of December in Petty Corner, sunrise is at 7:17 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine in Petty Corner is 2.9h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Petty Corner?
What is the average humidity in December in Petty Corner?
How much does it rain in Petty Corner in December?
How much does it snow in Petty Corner in December?
What is the month with the shortest days in Petty Corner?
What is the average length of the day in December in Petty Corner?
When is the sunrise / sunset in December in Petty Corner?
How many hours of sunshine does Petty Corner have in December?
What is the month with the lowest UV index in Petty Corner?
How high is the UV index in December in Petty Corner?
Average temperature in December
Petty Corner, NY
- Average high temperature in December: 34.7°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 (28.6°F).
- Average low temperature in December: 25.7°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 (17.4°F).
Average pressure in December
Petty Corner, 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
Petty Corner, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Petty Corner, NY
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
Petty Corner, NY
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is October (3.27").
The driest months (with the least rainfall) are January and September (1.93").
Average rainfall days in December
Petty Corner, NY
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Petty Corner, NY
- Average snowfall in December: 7.24"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Petty Corner, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (19.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Petty Corner, 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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Petty Corner, NY
- Average sunshine days in December: 8 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in December
Petty Corner, 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 January, February and December (UV index 1).
Average cloud cover in December
Petty Corner, NY
- Average cloud cover in December: 71
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Petty Corner, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Petty Corner, New York, USA
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