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 shows a mild decline in the average high-temperature, falling from November's chilly 44.6°F (7°C) to a cold 34°F (1.1°C). Nights in December in Clay showcase an average temperature of 25.9°F (-3.4°C), slightly cooler than the daytime.Humidity
In December, the average relative humidity in Clay is 84%.Rainfall
In Clay, in December, it is raining for 12.2 days, with typically 3.46" (88mm) of accumulated precipitation. In Clay, during the entire year, the rain falls for 181.5 days and collects up to 38.7" (983mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Clay, in December, during 15.7 snowfall days, 8.86" (225mm) of snow is typically accumulated. In Clay, during the entire year, snow falls for 79.8 days and aggregates up to 39.45" (1002mm) of snow.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 7:17 am and sunset at 4:30 pm. On the last day of December, in Clay, sunrise is at 7:36 am and sunset at 4:39 pm EST.
Sunshine
In Clay, the average sunshine in December is 3h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Clay in December?
What is the average humidity in December in Clay?
How much does it rain in Clay in December?
How many days does it snow in December in Clay?
What is the month with the shortest days in Clay?
How many hours of daylight does Clay have in December?
When are sunrise and sunset in December in Clay?
How many hours of sunshine does Clay have in December?
What are the months with the lowest UV index in Clay?
What is the UV index reading in December in Clay?
Average temperature in December
Clay, NY
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Clay, 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
Clay, NY
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Clay, NY
- Average humidity in December: 84%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
Clay, NY
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in December
Clay, NY
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in December
Clay, NY
- Average snowfall in December: 8.86"
The month with the highest snowfall is February (10.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Clay, NY
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is January (19.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clay, NY
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 3h and 0min
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
Clay, NY
- Average sunshine days in December: 7.1 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (4.5 days).
Average UV index in December
Clay, 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 February and December (UV index 1).
Average cloud cover in December
Clay, 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 30).
Average visibility in December
Clay, 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).
Clay, New York, USA
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