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
December's arrival comes with a decrease in the average high-temperature, moving from a chilly 45.3°F (7.4°C) in November to a cold 34.7°F (1.5°C). Sennett observes an average low-temperature of 25.7°F (-3.5°C) during the slightly cooler nights of December.Humidity
In Sennett, the average relative humidity in December is 85%.Rainfall
In Sennett, in December, during 9.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 164.7 rainfall days, and 29.17" (741mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sennett, in December, during 16 snowfall days, 7.24" (184mm) of snow is typically accumulated. Throughout the year, there are 80.8 snowfall days, and 35.91" (912mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:41 pm EST.
Sunshine
In Sennett, the average sunshine in December is 2.9h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Sennett. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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?
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 are sunrise and sunset in December?
How long on average sun shines in December in Sennett?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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
Sennett, 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).
Sennett, New York, USA
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