January weather forecast
Oyster Bay, NY

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Weather in January

January, like December, in Oyster Bay, New York, is a wintry winter month, with an average temperature varying between 27.3°F (-2.6°C) and 36.5°F (2.5°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 36.5°F (2.5°C) and a low of 27.3°F (-2.6°C).

Humidity

In January, the average relative humidity is 73%.

Rainfall

In January, the rain falls for 9.3 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 165.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Oyster Bay, in January, during 6.8 snowfall days, 1.77" (45mm) of snow is typically accumulated. Throughout the year, there are 22.2 snowfall days, and 7.24" (184mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:09 pm EST.

Sunshine

The average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, known for its average high temperature of 36.5°F (2.5°C) and an average low temperature of 27.3°F (-2.6°C), is the coldest month.

How cold is January in Oyster Bay?

Oyster Bay in January has an average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 27.3°F (-2.6°C).

What is the average humidity in January?

In Oyster Bay, the average relative humidity in January is 73%.

How many days does it rain in January?

In January, the rain falls for 9.3 days. Throughout January, 2.48" (63mm) of precipitation is accumulated.

How much does it snow in January?

In January, it is snowing for 6.8 days. Throughout January, 1.77" (45mm) of snow is accumulated.

How many hours of daylight does Oyster Bay have in January?

In Oyster Bay, the average day length in January is 9h and 38min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:18 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:09 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 5.1h.

What is the month with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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 January
Oyster Bay, NY

Average temperature in January - Oyster Bay, NY
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 27.3°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in January
Oyster Bay, NY

Average pressure in January - Oyster Bay, NY
  • Average pressure in January: 30.05"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Oyster Bay, NY

Average wind speed in January - Oyster Bay, NY
  • Average wind speed in January: 11.2mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in January
Oyster Bay, NY

Average humidity in January - Oyster Bay, NY
  • Average humidity in January: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

Average rainfall in January
Oyster Bay, NY

Average rainfall in January - Oyster Bay, NY
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in January
Oyster Bay, NY

Average rainfall days in January - Oyster Bay, NY
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in January
Oyster Bay, NY

Average snowfall in January - Oyster Bay, NY
  • Average snowfall in January: 1.77"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Oyster Bay, NY

Average snowfall days in January - Oyster Bay, NY
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Oyster Bay, NY

Average daylight in January / Average sunshine in January - Oyster Bay, NY
  • Average daylight in January: 9h and 4min

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

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in January
Oyster Bay, NY

Average sunshine days in January - Oyster Bay, NY
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in January
Oyster Bay, NY

Average UV index in January - Oyster Bay, NY
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
Oyster Bay, NY

Average cloud cover in January - Oyster Bay, NY
  • Average cloud cover in January: 44

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in January
Oyster Bay, NY

Average visibility in January - Oyster Bay, NY
  • Average visibility in January: 6mi

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

Oyster Bay, New York, USA

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