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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Port Jefferson Station, New York, is another cold winter month, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 29.1°F (-1.6°C). In Port Jefferson Station, the month of January registers the lowest temperatures, averaging 37.6°F (3.1°C) at the peak and 29.1°F (-1.6°C) at the lowest. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Port Jefferson Station, New York, with an average temperature ranging between min 30.4°F (-0.9°C) and max 38.8°F (3.8°C). Port Jefferson Station's shift into February sets the average high-temperature at a still wintry 38.8°F (3.8°C), a figure that deviates only slightly from January's 37.6°F (3.1°C). Weather in February »
Weather in March
March, the first month of the spring in Port Jefferson Station, is a chilly month, with an average temperature fluctuating between 43.9°F (6.6°C) and 36°F (2.2°C). The high-temperature average in March for Port Jefferson Station is a chilly 43.9°F (6.6°C), staying closely aligned with February's conditions. Weather in March »
Weather in April
April is a fresh spring month in Port Jefferson Station, New York, with an average temperature fluctuating between 52.9°F (11.6°C) and 44.6°F (7°C). Noticing a change, the average high-temperature during April moves from March's chilly 43.9°F (6.6°C) to a cool 52.9°F (11.6°C). Weather in April »
Weather in May
May, the last month of the spring in Port Jefferson Station, is a refreshing month, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 53.6°F (12°C). Port Jefferson Station, New York, experiences a temperature shift with the start of May, with average high-temperatures moving from a fresh 52.9°F (11.6°C) in April to a comfortable 62.6°F (17°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Port Jefferson Station, New York, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 63.1°F (17.3°C). With the onset of June, Port Jefferson Station's weather sees a minor temperature rise, transitioning from a refreshing 62.6°F (17°C) in May to a pleasant 71.2°F (21.8°C). Weather in June »
Weather in July
July in Port Jefferson Station, New York, is a warm summer month, with an average temperature varying between 79.2°F (26.2°C) and 71.1°F (21.7°C). Temperature records mark July as the warmest month, with highs averaging 79.2°F (26.2°C) and lows at 71.1°F (21.7°C). Weather in July »
Weather in August
August, the last month of the summer in Port Jefferson Station, is also a moderately hot month, with an average temperature ranging between max 78.4°F (25.8°C) and min 71.1°F (21.7°C). Port Jefferson Station indicates an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, showing minor variation from July's 79.2°F (26.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Port Jefferson Station, is also an agreeable month, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 72.3°F (22.4°C). The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 78.4°F (25.8°C) to an agreeable 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, in Port Jefferson Station, New York, is another comfortable autumn month, with an average temperature ranging between min 55.4°F (13°C) and max 62.6°F (17°C). Port Jefferson Station's average high-temperature decreases in October, falling from an agreeable 72.3°F (22.4°C) in September to a comfortable 62.6°F (17°C). Weather in October »
Weather in November
November, the last month of the autumn in Port Jefferson Station, is also a fresh month, with an average temperature fluctuating between 44.1°F (6.7°C) and 51.8°F (11°C). The shift from October to November involves a decrease in the average high-temperature, from an enjoyable 62.6°F (17°C) to a cool 51.8°F (11°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Port Jefferson Station, New York, with an average temperature fluctuating between 43.7°F (6.5°C) and 36.5°F (2.5°C). Port Jefferson Station's December weather shows a modest shift in high-temperatures, falling from November's fresh 51.8°F (11°C) to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
The coldest temperatures occur during January, when averages reach a peak of 37.6°F (3.1°C) and a low of 29.1°F (-1.6°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 6.8 days and typically collects 2.05" (52mm) of precipitation.
How much does it rain in Port Jefferson Station?
Throughout the year, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.
When does it snow?
January through March, October through December are months with snowfall.
How much does it snow?
In Port Jefferson Station, during the entire year, snow falls for 12.6 days and aggregates up to 5.59" (142mm) of snow.
What are the months with the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Port Jefferson Station?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
When does it snow the most?
The month with the most snowfall is March, when snow falls for 2.3 days and typically aggregates up to 2.13" (54mm) of snow.
When is Daylight Saving Time (DST) in Port Jefferson Station?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow?
April through September are months without snowfall.
What is the most humid month?
The months with the highest humidity are May and June, with an average relative humidity of 77%.
When are the longest days?
The month with the longest days in Port Jefferson Station is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
July is the month when Port Jefferson Station sees the average highest temperatures, with a high of 79.2°F (26.2°C) and a low of 71.1°F (21.7°C).
What month has the most sunshine?
With an average of 10.6h of sunshine, July has the most sunshine of the year.
What is the least humid month?
The least humid month is November, with an average relative humidity of 71%.
What is the wettest month?
The month with the most rainfall is December, when the rain falls for 11.4 days and typically aggregates up to 3.58" (91mm) of precipitation.
What is the month with the shortest days in Port Jefferson Station?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Port Jefferson Station, NY
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).
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
Port Jefferson Station, NY
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.06"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
Port Jefferson Station, NY
- Average wind speed in January:
12.9mph - Average wind speed in February:
12.4mph - Average wind speed in March:
12.2mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
8.3mph - Average wind speed in August:
8.5mph - Average wind speed in September:
9.8mph - Average wind speed in October:
11.7mph - Average wind speed in November:
12.4mph - Average wind speed in December:
12.7mph
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
Port Jefferson Station, NY
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall
Port Jefferson Station, NY
- Average rainfall in January:
2.05" - Average rainfall in February:
2.17" - Average rainfall in March:
2.6" - Average rainfall in April:
2.83" - Average rainfall in May:
2.76" - Average rainfall in June:
2.72"
- Average rainfall in July:
3.54" - Average rainfall in August:
3.31" - Average rainfall in September:
2.4" - Average rainfall in October:
3.27" - Average rainfall in November:
2.56" - Average rainfall in December:
3.58"
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
Port Jefferson Station, NY
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
11.4 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
Port Jefferson Station, NY
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
Port Jefferson Station, NY
- Average snowfall days in January:
3.5 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.5 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 daylight / Average sunshine
Port Jefferson Station, NY
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 January:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 3min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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
Port Jefferson Station, NY
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
17 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
17.6 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
Port Jefferson Station, NY
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
Port Jefferson Station, NY
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
Port Jefferson Station, NY
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 Station, New York, USA
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