January weather forecast
Port Washington, NY

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Weather in January

January, the same as December, is an icy winter month in Port Washington, New York, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.8°F (-2.9°C).

Temperature

Port Washington experiences its lowest temperatures in January, with an average peak of 36.5°F (2.5°C) and a low of 26.8°F (-2.9°C).

Humidity

In January, the average relative humidity is 73%.

Rainfall

In Port Washington, in January, during 9.2 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Port Washington, during the entire year, the rain falls for 168.7 days and collects up to 36.69" (932mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Port Washington, in January, snow falls for 7.5 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, there are 23 snowfall days, and 8.23" (209mm) of snow is accumulated.

Ocean temperature

In January, the average ocean temperature is 42.4°F (5.8°C).
Note: Swimming in 42.4°F (5.8°C) can be lethal. Merely spending a few minutes in 55.4°F (13°C) waters feels harsh, and venturing below 50°F (10°C) might disrupt breathing control and bring about cold shock, contingent on individual resilience.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of January, sunrise is at 7:19 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:10 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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What is the coldest month?

With average temperatures fluctuating between a high of 36.5°F (2.5°C) and a low of 26.8°F (-2.9°C), January stands out as the coldest month.

How cold is it in Port Washington in January?

An average high-temperature, in January, in Port Washington, is 36.5°F (2.5°C) and the average low-temperature is 26.8°F (-2.9°C).

What is the average humidity in January?

The average relative humidity in January is 73%.

How many days does it rain in January in Port Washington?

In Port Washington, in January, it is raining for 9.2 days, with typically 2.44" (62mm) of accumulated precipitation.

How much does it snow in January?

In Port Washington, in January, snow falls for 7.5 days, with typically accumulated 1.85" (47mm) of snow.

What is the ocean temperature in January?

In Port Washington, the average seawater temperature in January is 42.4°F (5.8°C). Swimming in 42.4°F (5.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Port Washington have in January?

In Port Washington, 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 7:19 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:10 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 5.1h.

When is the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index in Port Washington, New York, is 2. A UV Index reading of 2, and below, represents a low health risk 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
Port Washington, NY

Average temperature in January - Port Washington, NY
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 26.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in January
Port Washington, NY

Average pressure in January - Port Washington, NY
  • Average pressure in January: 30.06"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
Port Washington, NY

Average wind speed in January - Port Washington, NY
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in January
Port Washington, NY

Average humidity in January - Port Washington, NY
  • Average humidity in January: 73%

The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (70%).

Average rainfall in January
Port Washington, NY

Average rainfall in January - Port Washington, NY
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is February (2.36").

Average rainfall days in January
Port Washington, NY

Average rainfall days in January - Port Washington, NY
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (9.2 days).

Average snowfall in January
Port Washington, NY

Average snowfall in January - Port Washington, NY
  • Average snowfall in January: 1.85"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Port Washington, NY

Average snowfall days in January - Port Washington, NY
  • Average snowfall days in January: 7.5 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in January
Port Washington, NY

Average sea temperature in January - Port Washington, NY
  • Average sea temperature in January: 42.4°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in January /
Average sunshine in January
Port Washington, NY

Average daylight in January / Average sunshine in January - Port Washington, 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
Port Washington, NY

Average sunshine days in January - Port Washington, NY
  • Average sunshine days in January: 16.7 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in January
Port Washington, NY

Average UV index in January - Port Washington, 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
Port Washington, NY

Average cloud cover in January - Port Washington, NY
  • Average cloud cover in January: 43

The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in January
Port Washington, NY

Average visibility in January - Port Washington, 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).

Port Washington, New York, USA

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