Stony Brook, NY weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Stony Brook now
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Stony Brook weather by the hour
Stony Brook weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Stony Brook.
This week in Stony Brook
Sunrise, sunset and moon in Stony Brook
What is the weather usually like in Stony Brook?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 83°F average high
- Januarycoldest month · 26°F average low
- 48.1 inprecipitation per year · 1,221 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Stony Brook: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SETAUKET STRONG, NY US (USC00307633), adjusted for the elevation of Stony Brook.
Stony Brook weather month by month
Sunrise and sunset in Stony Brook through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:13 AM | 4:50 PM | 9 h 37 min |
| February | 6:44 AM | 5:28 PM | 10 h 43 min |
| March | 7:02 AM | 7:00 PM | 11 h 58 min |
| April | 6:11 AM | 7:33 PM | 13 h 21 min |
| May | 5:33 AM | 8:04 PM | 14 h 31 min |
| June | 5:18 AM | 8:27 PM | 15 h 9 min |
| July | 5:32 AM | 8:24 PM | 14 h 52 min |
| August | 6:01 AM | 7:52 PM | 13 h 51 min |
| September | 6:31 AM | 7:03 PM | 12 h 31 min |
| October | 7:02 AM | 6:13 PM | 11 h 10 min |
| November | 6:38 AM | 4:35 PM | 9 h 57 min |
| December | 7:08 AM | 4:26 PM | 9 h 18 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Stony Brook?
Stony Brook has a humid subtropical climate. The warmest month is July, with an average high of 83°F (28°C), and the coldest is January, with average lows of 26°F (-4°C).
It gets about 48.1 inches (1,221 mm) of precipitation a year. The wettest month is March and the driest is February.
The best time to visit Stony Brook is June to September. At 89 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Stony Brook
Weather in towns near Stony Brook
Questions about the weather in Stony Brook
What is the hottest month in Stony Brook?
July, with an average high of 83°F (28°C).
What is the coldest month in Stony Brook?
January, with an average low of 26°F (-4°C).
How much does it rain in Stony Brook?
About 48.1 inches (1,221 mm) a year; the wettest month is March.
Does it snow in Stony Brook?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Stony Brook?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Stony Brook have?
Humid subtropical (Köppen Cfa).
What is the weather like in Stony Brook in November?
Highs average 53°F and lows 39°F, with about 3.5 inches of precipitation.
What time is sunrise in Stony Brook?
Around 6:38 AM in mid-November, and sunset around 4:35 PM. Today’s exact times are shown above.
Where does this Stony Brook weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Stony Brook.
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