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
The onset of December comes with a shift in the average high-temperature, falling from a wintry 42.4°F (5.8°C) in November to a freezing cold 31.3°F (-0.4°C). Port Henry experiences a mean temperature of 20.7°F (-6.3°C) during December nights.Humidity
The average relative humidity in December in Port Henry is 82%.Rainfall
In Port Henry, during December, the rain falls for 6 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, there are 94.8 rainfall days, and 7.44" (189mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Port Henry, during December, snow falls for 7.3 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, in Port Henry, New York, there are 36.5 snowfall days, and 7.64" (194mm) 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 7:09 am and sunset at 4:16 pm. On the last day of December, in Port Henry, sunrise is at 7:28 am and sunset at 4:25 pm EST.
Sunshine
In Port Henry, the average sunshine in December is 4h.UV index
January 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 health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Around midday, solar radiation is most harmful; hence, exposure should be limited. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
How cold is December in Port Henry?
What is the average humidity in December in Port Henry?
How much does it rain in Port Henry in December?
How much does it snow in Port Henry in December?
What is the month with the shortest days in Port Henry?
What is the average length of the day in December in Port Henry?
When is the sunrise / sunset in December in Port Henry?
How many hours of sunshine does Port Henry have in December?
When is the lowest UV index in Port Henry?
What is the UV index reading in December in Port Henry?
Average temperature in December
Port Henry, NY
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in December: 20.7°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 (12.7°F).
Average pressure in December
Port Henry, 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
Port Henry, NY
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Port Henry, NY
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in December
Port Henry, NY
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Port Henry, NY
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (10.9 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Port Henry, NY
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Port Henry, NY
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is February (9.3 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 Henry, 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: 4h 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: 3h and 36min).
Average sunshine days in December
Port Henry, NY
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is September (22.1 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in December
Port Henry, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Port Henry, NY
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Port Henry, NY
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Port Henry, New York, USA
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