December weather forecast
Stanley Manor, NY

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Weather in December

The first month of the winter, December, is still a cold month in Stanley Manor, New York, with an average temperature fluctuating between 34.5°F (1.4°C) and 25.5°F (-3.6°C).

Temperature

The onset of December introduces a moderate change in Stanley Manor's weather, with average high-temperatures falling from November's frosty 44.8°F (7.1°C) to a wintry 34.5°F (1.4°C). Stanley Manor encounters an average temperature dip to a freezing cold 25.5°F (-3.6°C) throughout December, subtly lower than its daytime maximum.

Humidity

The average relative humidity in December is 85%.

Rainfall

In Stanley Manor, during December, the rain falls for 9.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 141.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The months with the most snowfall are February and December, with an average 3.62" (92mm) of accumulated snow.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:31 pm. On the last day of December, in Stanley Manor, sunrise is at 7:36 am and sunset at 4:40 pm EST.

Sunshine

The average sunshine in December 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 1 in December translates into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Stanley Manor in December?

December temperatures vary between a high-temperature of 34.5°F (1.4°C) and a low-temperature of 25.5°F (-3.6°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How many days does it rain in December?

In Stanley Manor, New York, during December, the rain falls for 9.2 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When does it snow the most?

The months with the most snowfall are February and December, with an average 3.62" (92mm) of accumulated snow.

How many days does it snow in December?

In Stanley Manor, in December, snow falls for 14.3 days, with typically accumulated 3.62" (92mm) of snow.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Stanley Manor?

In Stanley Manor, the average day length in December is 9h and 4min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:40 pm EST.

How many hours of sunshine does Stanley Manor have in December?

In December, the average sunshine duration is 2.9h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Stanley Manor, NY

Average temperature in December - Stanley Manor, NY
  • Average high temperature in December: 34.5°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Stanley Manor, NY

Average pressure in December - Stanley Manor, 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
Stanley Manor, NY

Average wind speed in December - Stanley Manor, NY
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Stanley Manor, NY

Average humidity in December - Stanley Manor, NY
  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).

Average rainfall in December
Stanley Manor, NY

Average rainfall in December - Stanley Manor, NY
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").

Average rainfall days in December
Stanley Manor, NY

Average rainfall days in December - Stanley Manor, NY
  • Average rainfall days in December: 9.2 days

The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in December
Stanley Manor, NY

Average snowfall in December - Stanley Manor, NY
  • Average snowfall in December: 3.62"

The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Stanley Manor, NY

Average snowfall days in December - Stanley Manor, NY
  • Average snowfall days in December: 14.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Stanley Manor, NY

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

Average sunshine days in December
Stanley Manor, NY

Average sunshine days in December - Stanley Manor, NY
  • Average sunshine days in December: 10.3 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).

Average UV index in December
Stanley Manor, NY

Average UV index in December - Stanley Manor, 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
Stanley Manor, NY

Average cloud cover in December - Stanley Manor, NY
  • Average cloud cover in December: 71

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Stanley Manor, NY

Average visibility in December - Stanley Manor, 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).

Stanley Manor, New York, USA

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