December weather forecast
Henderson, NY

Share

Weather in December

December, the first month of the winter in Henderson, is also a wintry month, with temperature in the range of an average high of 32.9°F (0.5°C) and an average low of 24.4°F (-4.2°C).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a chilly 43.7°F (6.5°C) in November to a wintry 32.9°F (0.5°C). The nights of December in Henderson are characterized by an average low-temperature of 24.4°F (-4.2°C), subtly descending from daytime highs.

Humidity

The average relative humidity in December in Henderson, New York, is 84%.

Rainfall

In Henderson, New York, in December, it is raining for 10.2 days, with typically 2.91" (74mm) of accumulated precipitation. In Henderson, during the entire year, the rain falls for 158.6 days and collects up to 30.39" (772mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Henderson, New York. The month with the most snowfall is December, when snow falls for 16.4 days and typically aggregates up to 9.21" (234mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:37 pm EST.

Sunshine

In December, the average sunshine is 2.9h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
[Resources]

Frequently asked questions

How cold is it in Henderson in December?

In December, in Henderson, the average high-temperature is 32.9°F (0.5°C), and the average low-temperature is 24.4°F (-4.2°C).

What is the average humidity in December in Henderson?

In Henderson, New York, the average relative humidity in December is 84%.

How many days does it rain in December in Henderson?

In December, the rain falls for 10.2 days. Throughout December, 2.91" (74mm) of precipitation is accumulated.

When does it snow the most in Henderson?

The month with the most snowfall is December, when snow falls for 16.4 days and typically aggregates up to 9.21" (234mm) of snow.

How much does it snow in Henderson in December?

In December, in Henderson, it is snowing for 16.4 days. Throughout December, 9.21" (234mm) of snow is accumulated.

What is the month with the shortest days in Henderson?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

What is the average length of the day in December in Henderson?

In Henderson, New York, the average day length in December is 8h and 58min.

When is the sunrise / sunset in December in Henderson?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:28 pm. On the last day of the month, in Henderson, sunrise is at 7:38 am and sunset at 4:37 pm EST.

How many hours of sunshine does Henderson have in December?

The average sunshine duration in December in Henderson, New York, is 2.9h.

What are the months with the lowest UV index in Henderson?

The months with the lowest UV index in Henderson are January and December, with an average maximum UV index of 1.

How high is the UV index in December in Henderson?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Henderson, NY

Average temperature in December - Henderson, NY
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in December: 24.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (16°F).

[Resources]

Average pressure in December
Henderson, NY

Average pressure in December - Henderson, NY
  • Average pressure in December: 30.05"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).

[Resources]

Average wind speed in December
Henderson, NY

Average wind speed in December - Henderson, NY
  • Average wind speed in December: 10.6mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

[Resources]

Average humidity in December
Henderson, NY

Average humidity in December - Henderson, NY
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and September (77%).

[Resources]

Average rainfall in December
Henderson, NY

Average rainfall in December - Henderson, NY
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.85").

[Resources]

Average rainfall days in December
Henderson, NY

Average rainfall days in December - Henderson, NY
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is October (17.4 days).
The months with the least rainy days are January and February (7 days).

[Resources]

Average snowfall in December
Henderson, NY

Average snowfall in December - Henderson, NY
  • Average snowfall in December: 9.21"

The month with the highest snowfall is December (9.21").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in December
Henderson, NY

Average snowfall days in December - Henderson, NY
  • Average snowfall days in December: 16.4 days

The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Henderson, NY

Average daylight in December / Average sunshine in December - Henderson, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

[Resources]

Average sunshine days in December
Henderson, NY

Average sunshine days in December - Henderson, NY
  • Average sunshine days in December: 7.7 days

The month with the most sunshine days is September (15 days).
The months with the least sunshine days are January and February (7.3 days).

[Resources]

Average UV index in December
Henderson, NY

Average UV index in December - Henderson, 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 January and December (UV index 1).

[Resources]

Average cloud cover in December
Henderson, NY

Average cloud cover in December - Henderson, NY
  • Average cloud cover in December: 70

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 30).

[Resources]

Average visibility in December
Henderson, NY

Average visibility in December - Henderson, 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).

[Resources]

Henderson, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location