December weather forecastClayton, NY
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Clayton, New York, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 31.8°F (-0.1°C).Temperature
Clayton in December demonstrates a small temperature transition, adjusting from an average high of a frosty 43.3°F (6.3°C) in November to a subzero cold 31.8°F (-0.1°C). Clayton registers an average low-temperature of 23.4°F (-4.8°C) throughout December, a modest decrease from its daytime highs.Humidity
The average relative humidity in December in Clayton, New York, is 84%.Rainfall
In Clayton, in December, it is raining for 10.7 days, with typically 2.09" (53mm) of accumulated precipitation. In Clayton, New York, during the entire year, the rain falls for 156.9 days and collects up to 24.06" (611mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 14.7 days and typically aggregates up to 6.06" (154mm) of snow.Ocean temperature
In Clayton, the average seawater temperature in December is 41.5°F (5.3°C).Note: Caution: 41.5°F (5.3°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December in Clayton, sunrise is at 7:20 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:35 pm EST.
Sunshine
In Clayton, the average sunshine in December is 3.3h.UV index
The months with the lowest UV index in Clayton are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 1 suggests these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's recommended to limit sun exposure when its radiation is at its peak during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clayton, NY
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in December: 23.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in December
Clayton, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Clayton, NY
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Clayton, NY
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Clayton, NY
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Clayton, NY
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Clayton, NY
- Average snowfall in December: 6.06"
The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clayton, NY
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Clayton, NY
- Average sea temperature in December: 41.5°F
The best month for swimming (with the highest average sea temperature) is August (70.1°F).
The coldest month (with the lowest average sea temperature) is March (35.5°F).
Average daylight in December /
Average sunshine in December
Clayton, NY
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in December
Clayton, NY
- Average sunshine days in December: 9 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in December
Clayton, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Clayton, NY
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Clayton, NY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
