THINGS TO DO · YOUTUBE SHORT
Heckscher State Park, East Islip, NY, US - Part 1
A local activity video shared by OurTrip Videos.
Watch on YouTube ↗
Weather · January
Islip weather in January
Average highs of 39°F, lows of 25°F and 3.7 in of rain, from 30 years of weather records.
January is Islip’s coldest month, with average highs of 39°F and lows of 25°F. That is 5° cooler than December, and 22° below the yearly average high.
- Average high
- 39°F
- Average low
- 25°F
- Precipitation
- 3.7 in
- Wet days
- 11
- Snow
- 10.3 in
- Sunrise · sunset
- 7:14 AM · 4:49 PM
January across the year
High and low Rain
What to wear in January
- Cold days: a winter coat, hat and gloves.
- Freezing nights: expect frost on cars in the morning.
- Pack an umbrella or rain jacket: rain or snow falls on about 11 days this month.
- Snow is likely (about 10 inches on average): waterproof boots help.
January is good for
Around Islip
See Islip
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Living Large: Islip
A local activity video shared by CBS New York.
Watch on YouTube ↗January compared with the months around it
Planning a trip? See the best time to visit Islip and today’s forecast.
Questions
How hot does it get in Islip in January?
Average highs are 39°F and average lows 25°F, for a daily mean of 32°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Islip in January?
January averages 3.7 in of precipitation over about 11 days with at least 0.01 in. It is the 7th wettest month of the year.
Does it snow in Islip in January?
Yes, about 10.3 in of snow on average.
What time is sunset in Islip in January?
Around mid-January the sun rises about 7:14 AM and sets about 4:49 PM, for roughly 9.6 hours of daylight.
Is January a good time to visit Islip?
The mildest months for visiting are May, July, September. January is cold.
NOAA U.S. Climate Normals 1991–2020, Islip Li Macarthur Ap station (9.7 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.