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
January
Weather in January
Temperature
The coldest month is January, with an average high-temperature of 3.8°C and an average low-temperature of -0.4°C.Humidity
In Sag Harbor, the average relative humidity in January is 73%.Rainfall
In Sag Harbor, during January, the rain falls for 9.1 days and regularly aggregates up to 65mm of precipitation. Throughout the year, there are 154.1 rainfall days, and 887mm of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Sag Harbor, in January, snow falls for 4.2 days, with typically accumulated 47mm of snow. In Sag Harbor, New York, during the entire year, snow falls for 13.9 days and aggregates up to 168mm of snow.Ocean temperature
In Sag Harbor, the average seawater temperature in January is 6°C.Note: With an efficient thermal swimsuit, one can navigate 6°C even if it's colder than 10°C; otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C feels chilly.
Daylight
In Sag Harbor, the average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in January is 4.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In January, the UV index of 2 transforms into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold does it get in January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the water temperature in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Sag Harbor have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Sag Harbor, NY
- Average high temperature in January: 3.8°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in January: -0.4°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).
Average pressure in January
Sag Harbor, NY
- Average pressure in January: 1017mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).
Average wind speed in January
Sag Harbor, NY
- Average wind speed in January: 25.7km/h
The windiest month (with the highest average wind speed) is January (25.7km/h).
The calmest month (with the lowest average wind speed) is July (16.8km/h).
Average humidity in January
Sag Harbor, NY
- Average humidity in January: 73%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in January
Sag Harbor, NY
- Average rainfall in January: 65mm
The wettest month (with the highest rainfall) is December (97mm).
The driest month (with the least rainfall) is September (55mm).
Average rainfall days in January
Sag Harbor, NY
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Sag Harbor, NY
- Average snowfall in January: 47mm
The month with the highest snowfall is March (60mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Sag Harbor, NY
- Average snowfall days in January: 4.2 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Sag Harbor, NY
- Average sea temperature in January: 6°C
The best month for swimming (with the highest average sea temperature) is August (22.9°C).
The coldest month (with the lowest average sea temperature) is February (4.3°C).
Average daylight in January /
Average sunshine in January
Sag Harbor, 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: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Sag Harbor, NY
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in January
Sag Harbor, 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 and December (UV index 2).
Average cloud cover in January
Sag Harbor, NY
- Average cloud cover in January: 48
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Sag Harbor, NY
- Average visibility in January: 9km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March, April, May and December (9km).