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
Setting in of December comes with a decrease in the average high-temperature, moving from a wintry 40.8°F (4.9°C) in November to a subzero cold 30.7°F (-0.7°C). With a barely noticeable fluctuation in temperature, Port Leyden reaches an average low of 21.7°F (-5.7°C) during the December nights.Humidity
In December, the average relative humidity in Port Leyden, New York, is 88%.Rainfall
In December, in Port Leyden, the rain falls for 8.9 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. In Port Leyden, during the entire year, the rain falls for 156 days and collects up to 23.94" (608mm) of precipitation.Snowfall
Months with snowfall in Port Leyden are January through May, October through December. In Port Leyden, in December, snow falls for 18.2 days, with typically accumulated 7.24" (184mm) of snow. In Port Leyden, during the entire year, snow falls for 97.3 days and aggregates up to 37.28" (947mm) of snow.Daylight
The month with the shortest days in Port Leyden 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 4:25 pm. On the last day of December, in Port Leyden, sunrise is at 7:34 am and sunset at 4:34 pm EST.
Sunshine
The average sunshine in December in Port Leyden, New York, is 2.6h.UV index
The months with the lowest UV index in Port Leyden, New York, are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Port Leyden?
What is the average humidity in December in Port Leyden?
How many days does it rain in December in Port Leyden?
How many days does it snow in December in Port Leyden?
What is the month with the shortest days in Port Leyden?
What is the average length of the day in December in Port Leyden?
When is the sunrise / sunset in December in Port Leyden?
How many hours of sunshine does Port Leyden have in December?
What are the months with the lowest UV index in Port Leyden?
What is the UV index intensity in December in Port Leyden?
Average temperature in December
Port Leyden, NY
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in December
Port Leyden, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Port Leyden, NY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Port 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
Port Leyden, NY
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is October (2.64").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in December
Port Leyden, NY
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Port Leyden, NY
- Average snowfall in December: 7.24"
The month with the highest snowfall is January (8.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Port Leyden, NY
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Port 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 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 24min).
Average sunshine days in December
Port Leyden, NY
- Average sunshine days in December: 7 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in December
Port 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, November and December (UV index 1).
Average cloud cover in December
Port Leyden, NY
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Port Leyden, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Port Leyden, New York, USA
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