December weather forecast
Kelsey, NY

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Weather in December

The first month of the winter, December, is also an icy month in Kelsey, New York, with an average temperature fluctuating between 33.6°F (0.9°C) and 23.4°F (-4.8°C).

Temperature

Kelsey's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 43.7°F (6.5°C) to a cold 33.6°F (0.9°C). In the month of December, Kelsey witnesses a consistent average low-temperature of 23.4°F (-4.8°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 87%.

Rainfall

In Kelsey, during December, the rain falls for 6.9 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Kelsey, during the entire year, the rain falls for 104.8 days and collects up to 9.13" (232mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 9.6 days. Throughout December, 1.3" (33mm) of snow is accumulated. Throughout the year, there are 48.7 snowfall days, and 7.44" (189mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:39 pm EST.

Sunshine

February and December, with an average of 2.7h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 1 during December leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Kelsey, records 33.6°F (0.9°C), while the low-temperature is 23.4°F (-4.8°C).

What is the most humid month?

The months with the highest humidity are February and December, with an average relative humidity of 87%.

What is the average humidity in December?

The average relative humidity in December is 87%.

How much does it rain in December?

In Kelsey, New York, in December, it is raining for 6.9 days, with typically 0.63" (16mm) of accumulated precipitation.

How many days does it snow in December?

In Kelsey, in December, snow falls for 9.6 days, with typically accumulated 1.3" (33mm) of snow.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Kelsey, the average day length in December is 9h and 10min.

What time are sunrise and sunset in December in Kelsey?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:39 pm EST.

What is the month with the least sunshine?

The months with the least sunshine are February and December, with an average of 2.7h of sunshine.

How many hours of sunshine does Kelsey have in December?

In Kelsey, the average sunshine duration in December is 2.7h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December in Kelsey is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Kelsey, NY

Average temperature in December - Kelsey, NY
  • Average high temperature in December: 33.6°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 (27.9°F).

  • Average low temperature in December: 23.4°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 (16°F).

Average pressure in December
Kelsey, NY

Average pressure in December - Kelsey, NY
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Kelsey, NY

Average wind speed in December - Kelsey, NY
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Kelsey, NY

Average humidity in December - Kelsey, NY
  • Average humidity in December: 87%

The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are June and July (79%).

Average rainfall in December
Kelsey, NY

Average rainfall in December - Kelsey, NY
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is August (1.02").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in December
Kelsey, NY

Average rainfall days in December - Kelsey, NY
  • Average rainfall days in December: 6.9 days

The months with the highest number of rainy days are May and July (12.3 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in December
Kelsey, NY

Average snowfall in December - Kelsey, NY
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Kelsey, NY

Average snowfall days in December - Kelsey, NY
  • Average snowfall days in December: 9.6 days

The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Kelsey, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are February and December (Average sunshine: 2h and 42min).

Average sunshine days in December
Kelsey, NY

Average sunshine days in December - Kelsey, NY
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is April (14.8 days).

Average UV index in December
Kelsey, NY

Average UV index in December - Kelsey, 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, November and December (UV index 1).

Average cloud cover in December
Kelsey, NY

Average cloud cover in December - Kelsey, NY
  • Average cloud cover in December: 73

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 41).

Average visibility in December
Kelsey, NY

Average visibility in December - Kelsey, NY
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are August and September (4mi).

Kelsey, New York, USA

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