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 Seaford, the lowest average temperatures are observed in January, with a high of 37.9°F (3.3°C) and a low of 30.2°F (-1°C).Humidity
In Seaford, the average relative humidity in January is 73%.Rainfall
January is the month with the least rainfall. Rain falls for 9.1 days and accumulates 1.89" (48mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Seaford, in January, during 5.3 snowfall days, 0.94" (24mm) of snow is typically accumulated. In Seaford, New York, during the entire year, snow falls for 16.8 days and aggregates up to 4.17" (106mm) of snow.Ocean temperature
In January, the average ocean temperature is 42.4°F (5.8°C).Note: In 42.4°F (5.8°C), even brief exposure to 55.4°F (13°C) feels biting, and anything less than 50°F (10°C) risks cold shock and impaired breathing, considering one's health.
Daylight
In Seaford, the average length of the day in January is 9h and 40min.On the first day of January, sunrise is at 7:17 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:09 pm EST.
Sunshine
The average sunshine in January is 5.2h.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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the UV index of 2 transforms into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How many days does it snow in January?
How cold is the water in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Seaford have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Seaford, NY
- Average high temperature in January: 37.9°F
The warmest months (with the highest average high temperature) are July and August (78.4°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 30.2°F
The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in January
Seaford, 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
Seaford, NY
- Average wind speed in January: 13.9mph
The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in January
Seaford, NY
- Average humidity in January: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Seaford, NY
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in January
Seaford, NY
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Seaford, NY
- Average snowfall in January: 0.94"
The month with the highest snowfall is March (1.34").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Seaford, NY
- Average snowfall days in January: 5.3 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in January
Seaford, 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
Seaford, NY
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Seaford, NY
- Average sunshine days in January: 16.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Seaford, 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
Seaford, NY
- Average cloud cover in January: 44
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Seaford, 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).
Seaford, New York, USA
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