January weather forecastHenderson Harbor, NY
January
Weather in January
January, the same as December, in Henderson Harbor, New York, is a freezing cold winter month, with an average temperature varying between 26.6°F (-3°C) and 16°F (-8.9°C).Temperature
With an average high-temperature of 26.6°F (-3°C) and an average low-temperature of 16°F (-8.9°C), January is the coldest month.Humidity
January and February, with an average relative humidity of 87%, are the most humid months.Rainfall
In Henderson Harbor, during January, the rain falls for 7 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 158.6 rainfall days, and 30.39" (772mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Henderson Harbor, New York, in January, during 19 snowfall days, 9.13" (232mm) of snow is typically accumulated. Throughout the year, there are 81.1 snowfall days, and 36.61" (930mm) of snow is accumulated.Daylight
In Henderson Harbor, the average length of the day in January is 9h and 22min.On the first day of January, sunrise is at 7:38 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:13 pm EST.
Sunshine
The months with the least sunshine in Henderson Harbor are January and February, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index in Henderson Harbor, New York, are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. It's recommended to limit sun exposure when its radiation is at its peak during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Henderson Harbor, NY
- Average high temperature in January: 26.6°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in January: 16°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in January
Henderson Harbor, NY
- Average pressure in January: 30.03"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Henderson Harbor, NY
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in January
Henderson Harbor, NY
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall in January
Henderson Harbor, NY
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Henderson Harbor, NY
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is October (17.4 days).
The months with the least rainy days are January and February (7 days).
Average snowfall in January
Henderson Harbor, NY
- Average snowfall in January: 9.13"
The month with the highest snowfall is December (9.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Henderson Harbor, NY
- Average snowfall days in January: 19 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Henderson Harbor, NY
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 2h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in January
Henderson Harbor, NY
- Average sunshine days in January: 7.3 days
The month with the most sunshine days is September (15 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in January
Henderson Harbor, NY
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Henderson Harbor, NY
- Average cloud cover in January: 74
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Henderson Harbor, NY
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).





