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 is characterized by a reduction in the average high-temperature, from a cold 40.8°F (4.9°C) in November to a subzero cold 30.9°F (-0.6°C). The average low-temperature of 21.7°F (-5.7°C) is witnessed during December.Humidity
In Boonville, the average relative humidity in December is 88%.Rainfall
In Boonville, in December, it is raining for 9.8 days, with typically 4.37" (111mm) of accumulated precipitation. In Boonville, during the entire year, the rain falls for 168.4 days and collects up to 45.28" (1150mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Boonville, in December, during 18.2 snowfall days, 15.47" (393mm) of snow is typically accumulated. Throughout the year, there are 101 snowfall days, and 75.43" (1916mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:15 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:35 pm EST.
Sunshine
In Boonville, New York, the average sunshine in December is 2.4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by 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 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 Boonville have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Boonville, NY
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Boonville, 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
Boonville, NY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Boonville, NY
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Boonville, NY
- Average rainfall in December: 4.37"
The wettest month (with the highest rainfall) is October (4.65").
The driest month (with the least rainfall) is September (2.72").
Average rainfall days in December
Boonville, NY
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
Boonville, NY
- Average snowfall in December: 15.47"
The month with the highest snowfall is February (16.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Boonville, NY
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Boonville, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 2h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in December
Boonville, NY
- Average sunshine days in December: 6.9 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in December
Boonville, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Boonville, NY
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in December
Boonville, NY
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Boonville, New York, USA
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