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
With December's arrival, West Leyden sees a decrease in average high-temperatures, moving from an icy 40.8°F (4.9°C) in November to a freezing cold 30.9°F (-0.6°C). In December, West Leyden's temperature tends to fall to an average low of 21.7°F (-5.7°C) during the night.Humidity
In West Leyden, the average relative humidity in December is 88%.Rainfall
In West Leyden, in December, during 9.8 rainfall days, 4.37" (111mm) of precipitation is typically accumulated. Throughout the year, there are 168.4 rainfall days, and 45.28" (1150mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 18.2 days. Throughout December, 15.47" (393mm) of snow is accumulated. Throughout the year, there are 101 snowfall days, and 75.43" (1916mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.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 West Leyden, 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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in West Leyden in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does West Leyden have in December?
When are sunrise and sunset in December?
How many hours of sunshine does West Leyden have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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
West Leyden, 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).
West Leyden, New York, USA
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