Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Northport, January records the lowest average temperatures, peaking at 37°F (2.8°C) and reaching a low of 28.6°F (-1.9°C).Humidity
In Northport, the average relative humidity in January is 72%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.1 days and typically collects 2.09" (53mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In January, it is snowing for 4.1 days. Throughout January, 1.18" (30mm) of snow is accumulated. In Northport, during the entire year, snow falls for 15.5 days and aggregates up to 5.71" (145mm) of snow.Ocean temperature
In January, the average ocean temperature is 42.3°F (5.7°C).Note: Swimming in 42.3°F (5.7°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
The average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:08 pm EST.
Sunshine
In January, the average sunshine is 5.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the water temperature in January?
How many hours of daylight does Northport have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Northport have in January?
When is the lowest UV index?
What is the UV index reading in January?
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 pressure in January
Northport, NY
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Northport, NY
- Average wind speed in January: 12.2mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in January
Northport, NY
- Average humidity in January: 72%
The 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 least 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 least 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").
The months with the least 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).
The months with the least 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: 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
Northport, NY
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in January
Northport, 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
Northport, NY
- Average cloud cover in January: 44
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
Northport, 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).
Northport, New York, USA
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