Contents
- Weather in November
- Frequently asked questions
- Average temperature in November
- Average pressure in November
- Average wind speed in November
- Average humidity in November
- Average rainfall in November
- Average rainfall days in November
- Average snowfall in November
- Average snowfall days in November
- Average sea temperature in November
- Average daylight in November
- Average sunshine in November
- Average sunshine days in November
- Average UV index in November
- Average cloud cover in November
- Average visibility in November
Weather in November
Temperature
November's arrival coincides with a drop in the average high-temperature, decreasing from October's refreshing 62.6°F (17°C) to a fresh 51.8°F (11°C). Port Jefferson documents an average low-temperature of 44.1°F (6.7°C) for the nights of November.Humidity
With an average relative humidity of 71%, November is the least humid month in Port Jefferson.Rainfall
In Port Jefferson, in November, during 7.7 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Port Jefferson, during the entire year, the rain falls for 146.8 days and collects up to 33.78" (858mm) of precipitation.Snowfall
Months with snowfall are January through March, October through December. In November, it is snowing for 0.6 days. Throughout November, 0.2" (5mm) of snow is accumulated. In Port Jefferson, during the entire year, snow falls for 12.6 days and aggregates up to 5.59" (142mm) of snow.Ocean temperature
In Port Jefferson, in November, the average water temperature is 55.6°F (13.1°C).Note: To swim in 55.6°F (13.1°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
In Port Jefferson, the average length of the day in November is 9h and 55min.On the first day of November, sunrise is at 7:23 am and sunset at 5:47 pm EDT. On the last day of the month, sunrise is at 6:57 am and sunset at 4:25 pm EST.
Note: On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from EDT to EST. Daylight Saving Time starts again on Sunday, March 9. 2025, at 2:00 am; consequently, the time zone reverts from EST to EDT.
Sunshine
In November, the average sunshine is 5.5h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In November, the average maximum UV index of 2 translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in November?
What is the least humid month?
What is the average humidity in November?
How many days does it rain in November in Port Jefferson?
How many days does it snow in November?
What is the water temperature in November?
How many hours of daylight does Port Jefferson have in November?
What time are sunrise and sunset in November?
When does Daylight Saving Time (DST) end in November?
How many hours of sunshine does Port Jefferson have in November?
What is the month with the lowest UV index?
What is the UV index reading in November?
Average temperature in November
Port Jefferson, NY
- Average high temperature in November: 51.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in November: 44.1°F
The months with the highest average low temperature are July and August (71.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in November
Port Jefferson, NY
- Average pressure in November: 30.09"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 November
Port Jefferson, NY
- Average wind speed in November: 12.4mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in November
Port Jefferson, NY
- Average humidity in November: 71%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in November
Port Jefferson, NY
- Average rainfall in November: 2.56"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in November
Port Jefferson, NY
- Average rainfall days in November: 7.7 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in November
Port Jefferson, NY
- Average snowfall in November: 0.2"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in November
Port Jefferson, NY
- Average snowfall days in November: 0.6 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in November
Port Jefferson, NY
- Average sea temperature in November: 55.5°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in November /
Average sunshine in November
Port Jefferson, NY
- Average daylight in November: 9h and 5min
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 November: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in November
Port Jefferson, NY
- Average sunshine days in November: 20.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13 days).
Average UV index in November
Port Jefferson, NY
- Average UV index in November: 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 November
Port Jefferson, NY
- Average cloud cover in November: 39
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in November
Port Jefferson, NY
- Average visibility in November: 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).
Port Jefferson, New York, USA
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