Northport
New York, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Northport, NY

January, like December, in Northport, New York, is another cold winter month, with average temperature varying between 28.6°F (-1.9°C) and 37°F (2.8°C).

Temperature

The coldest month is January, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 28.6°F (-1.9°C).

Humidity

In Northport, New York, the average relative humidity in January is 72%.

Rainfall

January is the month with the least rainfall. Rain falls for 8.1 days and accumulates 2.09" (53mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Northport, during 4.1 snowfall days, 1.18" (30mm) of snow is typically accumulated. Throughout the year, in Northport, there are 15.5 snowfall days, and 5.71" (145mm) of snow is accumulated.

Ocean temperature

In Northport, the average water temperature is 42.3°F (5.7°C).
Note: Swimming in 42.3°F (5.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In January, the average length of the day in Northport is 9.6h.

Sunshine

In January, the average sunshine is 5.2h.

UV index

Months with the lowest UV index in Northport are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Northport?

With an average high-temperature of 37°F (2.8°C) and an average low-temperature of 28.6°F (-1.9°C), January is the coldest month in Northport, New York.

What is the temperature in January in Northport?

The average high-temperature, in January, in Northport, is 37°F (2.8°C), while the average low-temperature is 28.6°F (-1.9°C).

What is the average humidity in January in Northport?

In Northport, New York, the average relative humidity in January is 72%.

How many days does it rain in January in Northport?

In Northport, New York, in January, during 8.1 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

What is the driest month in Northport?

January is the month with the least rainfall in Northport, New York. Rain falls for 8.1 days and accumulates 2.09" (53mm) of precipitation.

How many days does it snow in January in Northport?

In Northport, New York, during January, snow falls for 4.1 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the water temperature in January in Northport?

In Northport, the average seawater temperature in January is 42.3°F (5.7°C). Swimming in 42.3°F (5.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Northport?

In January, the average length of the day in Northport is 9.6h.

How long on average sun shines in January in Northport?

The average sunshine in January in Northport, New York, is 5.2h.

What are the months with the lowest UV index in Northport?

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 Northport?

In January, the average daily maximum UV index in Northport, New York, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV radiation.
Average temperature in January - Northport, NY
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 28.6°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average humidity in January - Northport, NY
  • Average humidity in January: 72%

Months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).

Average rainfall in January - Northport, NY
  • Average rainfall in January: 2.09"

The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the lowest rainfall) is January (2.09").

Average rainfall days in January - Northport, NY
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the lowest number of rainy days is January (8.1 days).

Average snowfall in January - Northport, NY
  • Average snowfall in January: 1.18"

The month with the highest snowfall is March (1.77").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in January - Northport, NY
  • Average snowfall days in January: 4.1 days

The month with the highest number of snowfall days is February (4.9 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in January - Northport, NY
  • Average sea temperature in January: 42.3°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in January / Average sunshine in January - Northport, NY
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5.2h

The month with most sunshine is July (Average sunshine: 10.7h).
The month with least sunshine is February (Average sunshine: 4.8h).

Average UV index in January - Northport, NY
  • Average UV index in January: 2

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