December weather forecast
Winthrop, NY

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Weather in December

December, the first month of the winter in Winthrop, is also a subzero cold month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 19.4°F (-7°C).

Temperature

In December, the average high-temperature goes from a wintry 42.1°F (5.6°C) in November to a freezing cold 29.7°F (-1.3°C). In the month of December, Winthrop witnesses a consistent average low-temperature of 19.4°F (-7°C).

Humidity

The average relative humidity in December is 86%.

Rainfall

In December, the rain falls for 10.2 days. Throughout December, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 160.1 rainfall days, and 29.76" (756mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Winthrop. In Winthrop, during December, snow falls for 13.1 days and regularly aggregates up to 5.98" (152mm) of snow. Throughout the year, there are 70.6 snowfall days, and 36.02" (915mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Winthrop, with an average of 8h and 54min of daylight.
On the first day of December in Winthrop, sunrise is at 7:17 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:28 pm EST.

Sunshine

In Winthrop, the average sunshine in December is 3.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Winthrop, New York. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 1 in December translates into this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Winthrop in December?

In Winthrop, in December, the average high-temperature is 29.7°F (-1.3°C), and the average low-temperature is 19.4°F (-7°C).

What is the average humidity in December in Winthrop?

The average relative humidity in December is 86%.

How much does it rain in Winthrop in December?

In December, in Winthrop, New York, the rain falls for 10.2 days. Throughout December, 2.32" (59mm) of precipitation is accumulated.

How much does it snow in Winthrop in December?

In Winthrop, New York, in December, during 13.1 snowfall days, 5.98" (152mm) of snow is typically accumulated.

What is the month with the shortest days in Winthrop?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

How many hours of daylight does Winthrop have in December?

The average day length in December in Winthrop is 8h and 52min.

When is the sunrise / sunset in December in Winthrop?

On the first day of December in Winthrop, New York, sunrise is at 7:17 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:28 pm EST.

How many hours of sunshine does Winthrop have in December?

In December, the average sunshine duration in Winthrop, New York, is 3.1h.

When is the lowest UV index in Winthrop?

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

How high is the UV index in December in Winthrop?

In December, the average daily maximum UV index in Winthrop is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Winthrop, NY

Average temperature in December - Winthrop, NY
  • Average high temperature in December: 29.7°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in December: 19.4°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in December
Winthrop, NY

Average pressure in December - Winthrop, NY
  • Average pressure in December: 30.04"Hg

The months with the highest atmospheric pressure are March and November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Winthrop, NY

Average wind speed in December - Winthrop, NY
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in December
Winthrop, NY

Average humidity in December - Winthrop, NY
  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Winthrop, NY

Average rainfall in December - Winthrop, NY
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Winthrop, NY

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

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in December
Winthrop, NY

Average snowfall in December - Winthrop, NY
  • Average snowfall in December: 5.98"

The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Winthrop, NY

Average snowfall days in December - Winthrop, NY
  • Average snowfall days in December: 13.1 days

The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Winthrop, NY
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).

Average sunshine days in December
Winthrop, NY

Average sunshine days in December - Winthrop, NY
  • Average sunshine days in December: 11.6 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in December
Winthrop, NY

Average UV index in December - Winthrop, 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).

Average cloud cover in December
Winthrop, NY

Average cloud cover in December - Winthrop, NY
  • Average cloud cover in December: 68

The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Winthrop, NY

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

The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Winthrop, New York, USA

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