December weather forecastClayville, NY
December
Weather in December
The first month of the winter, December, is also a wintry month in Clayville, New York, with an average temperature ranging between min 23.9°F (-4.5°C) and max 33.1°F (0.6°C).Temperature
Clayville in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 43.7°F (6.5°C) in November to a wintry 33.1°F (0.6°C). During December, Clayville sees a mean low-temperature of 23.9°F (-4.5°C).Humidity
In December, the average relative humidity in Clayville is 86%.Rainfall
In Clayville, in December, it is raining for 9 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Clayville, there are 148.9 rainfall days, and 28.23" (717mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Clayville, New York, during December, snow falls for 16 days and regularly aggregates up to 6.73" (171mm) of snow. In Clayville, during the entire year, snow falls for 83 days and aggregates up to 33.98" (863mm) of snow.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 7:13 am and sunset at 4:27 pm. On the last day of December, in Clayville, sunrise is at 7:32 am and sunset at 4:36 pm EST.
Sunshine
In December, the average sunshine in Clayville 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 Clayville. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clayville, NY
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Clayville, 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
Clayville, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Clayville, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Clayville, NY
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Clayville, NY
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in December
Clayville, NY
- Average snowfall in December: 6.73"
The month with the highest snowfall is February (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clayville, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is February (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clayville, NY
- Average daylight in December: 9h and 6min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Clayville, NY
- Average sunshine days in December: 9 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in December
Clayville, 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 and December (UV index 1).
Average cloud cover in December
Clayville, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Clayville, NY
- Average visibility in December: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, November and December (5mi).





