January weather forecastSea Cliff, NY

January

Weather in January

January, the same as December, is a wintry winter month in Sea Cliff, New York, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 27.3°F (-2.6°C).

Temperature

January is the month when Sea Cliff, New York, experiences its coldest temperatures, averaging 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 in Sea Cliff 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 Sea Cliff, during January, snow falls for 6.8 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, there are 22.2 snowfall days, and 7.24" (184mm) of snow is accumulated.

Ocean temperature

In Sea Cliff, in January, the average water temperature is 42.4°F (5.8°C).
Note: Unprotected swimming in 42.4°F (5.8°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.

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 4:37 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:10 pm EST.

Sunshine

The average sunshine in January is 5.1h.

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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest time of the year is January, with temperatures averaging a high of 36.5°F (2.5°C) and a low of 27.3°F (-2.6°C).

The average high-temperature and low-temperature during January are 36.5°F (2.5°C) and 27.3°F (-2.6°C) respectively.

The average relative humidity in January is 73%.

In Sea Cliff, in January, it is raining for 9.3 days, with typically 2.48" (63mm) of accumulated precipitation.

In Sea Cliff, in January, snow falls for 6.8 days, with typically accumulated 1.77" (45mm) of snow.

In January, the average ocean temperature is 42.4°F (5.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

The average day length in January is 9h and 38min.

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, in Sea Cliff, sunrise is at 7:05 am and sunset at 5:10 pm EST.

In Sea Cliff, the average sunshine duration in January is 5.1h.

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

In Sea Cliff, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

42.4°F

36.5°F

39°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.6mph

11.9mph

11.5mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

3.5

6.8

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

15.5

17.3

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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 sea temperature in January
Sea Cliff, 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
Sea Cliff, NY

Average daylight in January: 9h and 36min

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 6min

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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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
Sea Cliff, 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).