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
West Leyden's December weather features a mild decline in high-temperatures, reducing from a wintry 40.8°F (4.9°C) in November to a subzero cold 30.9°F (-0.6°C). In the month of December, the temperature in West Leyden generally rests at an average low of 21.7°F (-5.7°C).Humidity
In December, the average relative humidity in West Leyden is 88%.Rainfall
In West Leyden, New York, in December, it is raining for 9.8 days, with typically 4.37" (111mm) of accumulated precipitation. In West Leyden, during the entire year, the rain falls for 168.4 days and collects up to 45.28" (1150mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In West Leyden, during December, snow falls for 18.2 days and regularly aggregates up to 15.47" (393mm) of snow. Throughout the year, there are 101 snowfall days, and 75.43" (1916mm) of snow is accumulated.Daylight
December has the shortest days of the year in West Leyden, 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
The average sunshine in December is 2.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 in December translates into these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in West Leyden?
What is the average humidity in December in West Leyden?
How much does it rain in West Leyden in December?
How much does it snow in West Leyden in December?
What is the month with the shortest days in West Leyden?
What is the average length of the day in December in West Leyden?
What time are sunrise and sunset in December in West Leyden?
How long on average sun shines in December in West Leyden?
What is the month with the lowest UV index in West Leyden?
What is the UV index reading in December in West Leyden?
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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