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 comes with a reduction in the average high-temperature, receding from 42.4°F (5.8°C) in November to a still wintry 32.9°F (0.5°C). In Rootville, December's nights observe an average temperature dip to a freezing cold 22.5°F (-5.3°C).Humidity
The months with the highest humidity in Rootville are January, February and December, with an average relative humidity of 87%.Rainfall
In December, in Rootville, the rain falls for 10.3 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 161.1 rainfall days, and 31.18" (792mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Rootville, during December, snow falls for 16.7 days and regularly aggregates up to 8.35" (212mm) of snow. In Rootville, during the entire year, snow falls for 92.9 days and aggregates up to 48.23" (1225mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:29 pm. On the last day of December, in Rootville, sunrise is at 7:30 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December in Rootville, New York, is 2.8h.UV index
The months with the lowest UV index in Rootville, New York, are January through March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Rootville?
What are the most humid months in Rootville?
What is the average humidity in December in Rootville?
How much does it rain in Rootville in December?
How much does it snow in Rootville in December?
What is the month with the shortest days in Rootville?
How many hours of daylight does Rootville have in December?
When is the sunrise / sunset in December in Rootville?
How long on average sun shines in December in Rootville?
When is the lowest UV index in Rootville?
What is the UV index intensity in December in Rootville?
Average temperature in December
Rootville, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Rootville, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Rootville, NY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Rootville, NY
- Average humidity in December: 87%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Rootville, NY
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Rootville, NY
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Rootville, NY
- Average snowfall in December: 8.35"
The month with the highest snowfall is February (9.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rootville, NY
- Average snowfall days in December: 16.7 days
The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rootville, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
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: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in December
Rootville, NY
- Average sunshine days in December: 7.9 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).
Average UV index in December
Rootville, 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, March, November and December (UV index 1).
Average cloud cover in December
Rootville, NY
- Average cloud cover in December: 73
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 41).
Average visibility in December
Rootville, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Rootville, New York, USA
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